The history of agriculture is the story of how humans transformed wild plants and animals into domesticated ones for their benefit. Agriculture began independently in different parts of the world, and involved a diverse range of species. The development of agriculture about 12,000 years ago changed the way humans lived, as they switched from nomadic hunter-gatherer lifestyles to permanent settlements and farming
Some of the earliest crops that were domesticated include wheat, barley, peas, lentils, chickpeas, and flax in the Levant; rice, soybeans, and azuki beans in China; potatoes, tomatoes, peanuts, and coca in South America; sorghum, millet, yams, and cowpeas in Africa; and teff and coffee in Ethiopia1. Some of the earliest animals that were domesticated include pigs, sheep, cattle, and camels in Mesopotamia and Turkey; llamas, alpacas, and guinea pigs in South America; and sanga cattle in North-East Africa
Agriculture has evolved over time with the development of new technologies, techniques, and practices. Some of the major milestones in agricultural history include the British agricultural revolution in the 18th century, which introduced crop rotation, selective breeding, and mechanization; the Green Revolution in the 20th century, which increased crop yields through the use of synthetic fertilizers, pesticides, irrigation, and high-yielding varieties; and the biotechnology revolution in the 21st century, which introduced genetically modified crops, precision agriculture, and vertical farming
The history of agriculture in India dates back to the Neolithic age, some 9000 years ago, when early cultivation of plants and domestication of crops and animals began in the north-western part of the subcontinent. Wheat, barley, and jujube were some of the first crops that were grown by the ancient farmers
Over time, Indian agriculture diversified and expanded to include rice, millets, pulses, cotton, sugarcane, spices, fruits, vegetables, and livestock. Indian agriculture also developed various techniques and practices such as irrigation, crop rotation, fertilization, pest control, seed selection, and storage. Indian agriculture was influenced by various factors such as geography, climate, culture, religion, trade, and politics13.
Indian agriculture underwent significant changes after independence in 1947. The government introduced various reforms and policies to improve agricultural productivity, such as land reforms, cooperative movements, agricultural research and extension, subsidies, credit facilities, minimum support prices, public distribution system, green revolution, white revolution, blue revolution, and biotechnology revolution. These initiatives helped India achieve food security, self-sufficiency, and export surplus in many agricultural commoditie
the present ppt gives an understanding on origin of agriculture and different evolutionary trends in agriculture. it is useful to anyone to get a minimum knowledge on agriculture and it development.
Weeds
What is weed?
Evolution of weed
Classification of weed
Classification based on morphology/
cotyledon characters
Classification based on habitat
Classification based on origin
Classification based on association
Classification based on life cycle / ontogeny
Classification based on nature of stem
Classification based on soil pH
Special classification
weed management
Importance of weed management
Principles of weed management
CHARACTERISTICS OF
WEEDS & THEIR IMPORTANCE
CHARACTERISTICS OF WEEDS
Importance of Weeds or Benefits or
Advantages Derived from Weeds
Weed Biology
Weed Ecology
Propagation of weeds
Sexual Reproduction
Asexual reproduction
Vegetative reproduction
WEED DISSEMINATION:
of weeds
Cultural Methods of Weed Control
Preventive methods of weed management
Biological methods of Weed control
the present ppt gives an understanding on origin of agriculture and different evolutionary trends in agriculture. it is useful to anyone to get a minimum knowledge on agriculture and it development.
Weeds
What is weed?
Evolution of weed
Classification of weed
Classification based on morphology/
cotyledon characters
Classification based on habitat
Classification based on origin
Classification based on association
Classification based on life cycle / ontogeny
Classification based on nature of stem
Classification based on soil pH
Special classification
weed management
Importance of weed management
Principles of weed management
CHARACTERISTICS OF
WEEDS & THEIR IMPORTANCE
CHARACTERISTICS OF WEEDS
Importance of Weeds or Benefits or
Advantages Derived from Weeds
Weed Biology
Weed Ecology
Propagation of weeds
Sexual Reproduction
Asexual reproduction
Vegetative reproduction
WEED DISSEMINATION:
of weeds
Cultural Methods of Weed Control
Preventive methods of weed management
Biological methods of Weed control
Agriculture, branches of agriculture, shifting cultivation, farming system, development of scientific agriculture, milestones in agriculture, green revolution, white revolution, blue revolution, yellow revolution, importance of agronomy, agronomy, principles of agronomy, agronomist, role of agronomist
NAME : MANZOOR NABI
COURSE : B.SC (FORESTRY)
(Semester- v)
Year:-2015-16
student at mewar university Rajasthan, India
TOPIC: SHIFTING CULTIVATION
SUB : AGROFORESTRY
CONTACT ME.........
E-mail:- manzoornabi57@gmail.com
Agriculture, branches of agriculture, shifting cultivation, farming system, development of scientific agriculture, milestones in agriculture, green revolution, white revolution, blue revolution, yellow revolution, importance of agronomy, agronomy, principles of agronomy, agronomist, role of agronomist
NAME : MANZOOR NABI
COURSE : B.SC (FORESTRY)
(Semester- v)
Year:-2015-16
student at mewar university Rajasthan, India
TOPIC: SHIFTING CULTIVATION
SUB : AGROFORESTRY
CONTACT ME.........
E-mail:- manzoornabi57@gmail.com
The History of Kurdistan, Iraq, from prehistoric times to 2015.
Research from the internet, and a visit to the country in 2014.
An illustrated history, slideshow.
Early farmers also developed improved varieties of plants. For example, around 6000 B.C.E., a new variety of wheat
arose in South Asia and Egypt. It was stronger than previous cereal grains, its hulls were easier to remove, and it
could be made into bread.
As the Romans expanded their empire using warfare and coercion, they wrote manuals about the farming techniques
they observed in Africa and Asia, and adapted them to land in Europe.
In China, farmers also adapted tools and methods from nearby empires. Economy of Bangladesh A variety of rice from Vietnam ripened
quickly and allowed farmers to harvest several crops during a single growing season. This rice quickly became
popular throughout China.
Fungi classification plant pathology.pptxAjayDesouza V
Unveiling the Fungi: A Journey Through Classification
The world of fungi, with its vast diversity and enigmatic nature, has captivated biologists for centuries. From the humble molds feasting on forgotten bread to the majestic mushrooms sprouting in damp forests, these fascinating organisms play crucial roles in ecosystems, yet their classification remains a complex and evolving field. This essay delves into the intricate tapestry of fungal classification, exploring the major phyla and delving into the underlying principles that categorize these remarkable beings. Traditionally, the kingdom Fungi was comprised of five primary phyla, each distinguished by their unique reproductive mechanisms and cellular structures. The Chytridiomycota, often dubbed "the chytrids," are microscopic marvels found in freshwater and marine environments. These tiny filamentous fungi employ flagellated zoospores for dispersal, resembling swimming sperm cells. In contrast, the Zygomycota, also known as "bread molds," engage in a simpler yet no less fascinating reproductive strategy. During sexual reproduction, their hyphae fuse, forming characteristic zygosporangia, structures within which new spores develop. Moving on to the more conspicuous fungi, we encounter the Ascomycota and Basidiomycota, encompassing the majority of known fungal species. Ascomycetes, including the familiar yeasts and truffles, produce their spores inside sac-like structures called asci. Their diversity is staggering, ranging from the vibrant orange of lobster mushrooms to the velvety black of morels. Basidiomycota, on the other hand, are renowned for their fruiting bodies, including the iconic mushrooms we see in supermarkets and forests. These charismatic fungi produce spores on club-shaped structures called basidia, adorning the landscape with their often vibrant hues and intricate shapes. However, the fungal kingdom is not a static entity. Advances in molecular biology have unveiled hidden relationships and challenged traditional classifications. The controversial phylum **Deuteromycota**, once encompassing fungi that lacked a known sexual cycle, has been largely disbanded, with its members reclassified into existing phyla based on genetic analysis. Additionally, a new phylum, Glomeromycota, has been recently recognized, consisting of symbiotic root fungi essential for plant growth. Beyond phylogenetic classification, fungi can be categorized based on their ecological roles and nutritional strategies. Saprophytic fungi, adept at decomposing dead organic matter, are the tireless recyclers of the natural world, playing a vital role in nutrient cycling.Parasitic fungi, on the other hand, obtain their nourishment from living hosts, some causing devastating plant diseases, while others form intricate partnerships with their benefactors. The symbiotic relationship between fungi and algae in lichens is a testament to the remarkable diversity of fungal interactions with other organisms.
Fungi classification plant pathology.pptxAjayDesouza V
The classification of fungi is a complex and ever-evolving field, but I can give you a good overview of the main categories and some of the key characteristics that define them.
**Firstly, it's important to differentiate between true fungi and fungus-like organisms:
True fungi: These are the "classic" fungi we typically think of, with cell walls made of chitin and a heterotrophic lifestyle (obtaining nutrients from other organisms). They are further divided into several phyla based on their reproductive structures and cell wall composition.
* **Fungus-like organisms:** These share some similarities with true fungi, but lack certain defining characteristics like chitin cell walls or fungal-specific metabolic pathways. Some common examples include water molds (oomycetes), slime molds (myxomycetes), and chytridiomycetes.
**Here are the main phyla of true fungi:**
1. **Chytridiomycota (Chytrids):** The most primitive lineage, known for their aquatic lifestyle and flagellated zoospores. Examples include Batrachochytrium dendrobatidis, a chytrid fungus responsible for amphibian declines worldwide.
2. **Zygomycota (Conjugated fungi):** Characterized by the formation of zygospores during sexual reproduction. Common examples include bread mold (Rhizopus stolonifer) and athlete's foot fungus (Mucor circinelloides).
3. **Ascomycota (Sac fungi):** The most diverse and species-rich phylum, including yeasts, molds, and many common mushrooms. Their defining feature is the ascus, a sac-like structure containing ascospores. Examples include brewer's yeast (Saccharomyces cerevisiae), penicillin mold (Penicillium chrysogenum), and morels (Morchella spp.).
4. **Basidiomycota (Club fungi):** Another large and diverse phylum, known for their fruiting bodies with basidia that produce basidiospores. Examples include mushrooms like button mushrooms (Agaricus bisporus), chanterelles (Cantharellus cibarius), and various bracket fungi.
5. **Glomeromycota:** A recently established phylum characterized by their symbiotic relationship with plant roots. They play a crucial role in plant nutrient uptake and soil health.
**In addition to these phyla, the Deuteromycota (Fungi imperfecti) category exists:**
* **Deuteromycota:** This group used to be classified as a separate phylum, but most of its members have now been reclassified into other phyla based on genetic analysis. They lack a known sexual reproductive stage, but many are still important ecologically and commercially. Examples include bread mold (Neurospora crassa) and the antibiotic-producing Penicillium species.
Remember, this is just a brief overview, and there are many more intricacies to the classification of fungi. If you have any specific questions about a particular type of fungus or want to delve deeper into a specific phylum, I'd be happy to provide more information!
A **bright field microscope** is a type of compound light microscope that illuminates the background against a stained specimen ¹². It is commonly used in practical labs to study organisms' behavior and characteristics such as size, shape, and arrangement ². The microscope uses light rays to produce a dark image against a bright background ¹. It is specially designed with magnifying glasses known as lenses that modify the specimen to produce an image seen through the eyepiece ¹. The bright field microscope is made up of various parts, including the eyepiece, objective lenses, focusing knobs, and stage ¹.
I hope this helps!
Source: Conversation with Bing, 7/11/2023
(1) Brightfield Microscope (Compound Light Microscope)- Definition .... https://microbenotes.com/brightfield-microscope/.
(2) Bright Field Microscopy - Biology Reader. https://biologyreader.com/bright-field-microscopy.html.
(3) Bright-field microscopy - Wikipedia. https://en.wikipedia.org/wiki/Bright-field_microscopy.
(4) Bright Field Microscope: Definition, Parts, Working Principle, Application. https://microbiologynote.com/bright-field-microscope-definition-parts-working-principle-application/.
Cattaneo from Italy published the first description of stem rot or sclerotial disease in
1876. Since then, reports of it have come from a number of rice-growing nations, including
Japan, the United States, Ceylon, Burma, Vietnam, the Philippines, and China. In India it was
first observed in Bengal in 1911. Butler later documented the condition in full a year later, in
1918. Since then, the majority of states that farm rice have reported it. Damage varies
depending on the tract and possibly depending on the season. Stem rot of rice is caused by **Sclerotium oryzae**¹. It is one of a number of organisms that can damage rice leaf sheaths and/or stems. Others are listed in the “Rice field guide to pests, diseases and weeds”¹. The fungus infects the leaf sheath, leading to leaf death and rotting of the stem¹.
Source: Conversation with Bing, 15/9/2023
(1) https://en.wikipedia.org/wiki/Magnaporthe_salvinii#:~:text=Magnaporthe%20salvinii%20%28%20teleomorph%29%2C%20also%20known%20as%20Sclerotium,small%2C%20black%2C%20irregular%20lesion%20on%20the%20leaf%20sheath.. https://en.wikipedia.org/wiki/Magnaporthe_salvinii.
(2) AN OVERVIEW OF STEM ROT DISEASE OF RICE (Sclerotium oryzae Catt.) AND .... https://www.fortunejournals.com/ijabpt/pdf/96010-K%20Gopika.pdf.
(3) Induced tolerance against stem-rot disease of low-land ... - Springer. https://link.springer.com/article/10.1007/s42161-021-00948-5.
(4) Pathogenic and Molecular Variability in Sclerotium Oryzae Catt.. https://chesci.com/wp-content/uploads/2021/08/v10i39_8_cs122052031_367-371.pdf.
https://vikaspedia.in/agriculture/crop-production/package-of-practices/cereals-and-millets/paddy/rice
Sclerotium oryzae is a fungus that causes stem rot of rice. It is a major disease of rice in tropical and subtropical regions. The fungus can survive in soil for several years and can be spread by infected seeds, water, and farm implements.
The symptoms of stem rot of rice vary depending on the stage of growth of the plant. In young seedlings, the fungus can cause damping-off, which is the death of the seedlings at the soil level. In older plants, the fungus can cause the stems to rot and the leaves to wilt. The infected plants may also produce fewer grains.
To control stem rot of rice, a combination of cultural and chemical methods can be used. Cultural methods include:
* Planting resistant varieties of rice
* Avoiding waterlogging
* Rotating crops
* Burning crop residues
Chemical methods include:
* Applying fungicides to the soil before planting
* Treating the seeds with fungicides
* Applying fungicides to the plants during the growing season
If you suspect that your rice plants have stem rot, it is important to consult with a plant pathologist for diagnosis and treatment.
* The fungus is a white, cottony mass that can be found on the stems and leaves of infected plants.
* The fungus produces spores that can be spread by wind, water, and insect
PRINCIPLES OF PLANT DISEASE MANAGEMENT.pptxAjayDesouza V
The principles of plant disease management are based on the following tactics¹²³:
1. **Avoidance of the Pathogen**: This includes disease management tactics applied before infection, such as geographical area selection, planting time, and disease-escaping varieties.
2. **Exclusion of the Pathogen**: This means preventing the entrance and establishment of pathogens in uninfected crops in a particular area. It can be achieved using certified seed or plants, sorting bulbs before planting, discarding any that are doubtful, possibly treating seeds, tubers or corms before they are planted and most importantly refusing obviously diseased specimens from dealers.
3. **Reduction or Eradication of Pathogen Inoculum**: This involves reducing or eradicating pathogen inoculum by crop rotation, sanitation, roguing, soil treatment, heat and chemical treatment to diseased plant material, use of antagonists.
4. **Resistance (Immunization) to Pathogen**: This involves using resistant varieties and induced systemic resistance.
5. **Integrated Approach**: This involves combining all the above tactics to manage plant diseases.
I hope this helps!
Source: Conversation with Bing, 28/7/2023
(1) Plant Disease Management: Principles and Economics | Botany. https://www.botanylibrary.com/plant-diseases-2/plant-disease-management-principles-and-economics-botany/15422.
(2) PRINCIPLES OF PLANT DISEASE MANAGEMENT - e-Krishi Shiksha. http://ecoursesonline.iasri.res.in/mod/page/view.php?id=11417.
(3) General principles of plant diseases management Importance, general .... http://eagri.org/eagri50/PATH171/lec22.pdf.
(4) Principles of plant disease management | PPT - SlideShare. https://www.slideshare.net/RanjanKumar44/principles-of-plant-disease-management.
QUARANTINE AND POST-ENTRY QUARANTINE.pptxAjayDesouza V
Post-entry plant quarantine (PEQ) is a measure used to prevent the introduction and spread of plant pests and diseases into a country or region. It involves the inspection, testing, and treatment of imported plants and plant products to ensure that they are free from pests and diseases.
PEQ is typically conducted at designated quarantine stations, which are facilities that are equipped to isolate and inspect imported plants. The length of time that plants are held in quarantine depends on the type of plant and the risk of pests or diseases.
PEQ can be an effective way to prevent the introduction of new pests and diseases into a country or region. However, it can also be a costly and time-consuming process.
Here are some of the benefits of post-entry plant quarantine:
* It can help to prevent the introduction of new pests and diseases into a country or region.
* It can help to protect existing plant industries from pests and diseases.
* It can help to maintain the health of the environment.
Here are some of the challenges of post-entry plant quarantine:
* It can be costly to implement and maintain.
* It can be time-consuming to inspect and test imported plants.
* It can be difficult to ensure that all imported plants are properly inspected and tested.
Despite the challenges, post-entry plant quarantine is an important tool in the fight against plant pests and diseases. It can help to protect plant industries, the environment, and human health.
Here are some examples of plant pests and diseases that can be prevented by post-entry plant quarantine:
* **Pests:** Insects, mites, nematodes, and other organisms that can damage plants.
* **Diseases:** Fungal, bacterial, and viral diseases that can infect plants.
* **Weeds:** Plants that can compete with crops and spread pests and diseases.
Post-entry plant quarantine is an important part of a comprehensive plant protection program. By combining PEQ with other measures, such as inspection at ports of entry, certification, and eradication, it is possible to reduce the risk of plant pests and diseases and protect plant industries and the environment. Post-entry plant quarantine refers to the measures and procedures implemented after plants, plant products, or plant materials have entered a new country or region. The purpose of post-entry plant quarantine is to prevent the establishment and spread of potentially harmful pests and diseases that might have been inadvertently introduced during international trade or travel
QUARANTINE AND POST-ENTRY QUARANTINE.pdfAjayDesouza V
Post-entry plant quarantine (PEQ) is a measure used to prevent the introduction and spread of plant pests and diseases into a country or region. It involves the inspection, testing, and treatment of imported plants and plant products to ensure that they are free from pests and diseases.
PEQ is typically conducted at designated quarantine stations, which are facilities that are equipped to isolate and inspect imported plants. The length of time that plants are held in quarantine depends on the type of plant and the risk of pests or diseases.
PEQ can be an effective way to prevent the introduction of new pests and diseases into a country or region. However, it can also be a costly and time-consuming process.
Here are some of the benefits of post-entry plant quarantine:
* It can help to prevent the introduction of new pests and diseases into a country or region.
* It can help to protect existing plant industries from pests and diseases.
* It can help to maintain the health of the environment.
Here are some of the challenges of post-entry plant quarantine:
* It can be costly to implement and maintain.
* It can be time-consuming to inspect and test imported plants.
* It can be difficult to ensure that all imported plants are properly inspected and tested.
Despite the challenges, post-entry plant quarantine is an important tool in the fight against plant pests and diseases. It can help to protect plant industries, the environment, and human health.
Here are some examples of plant pests and diseases that can be prevented by post-entry plant quarantine:
* **Pests:** Insects, mites, nematodes, and other organisms that can damage plants.
* **Diseases:** Fungal, bacterial, and viral diseases that can infect plants.
* **Weeds:** Plants that can compete with crops and spread pests and diseases.
Post-entry plant quarantine is an important part of a comprehensive plant protection program. By combining PEQ with other measures, such as inspection at ports of entry, certification, and eradication, it is possible to reduce the risk of plant pests and diseases and protect plant industries and the environment. Post-entry plant quarantine refers to the measures and procedures implemented after plants, plant products, or plant materials have entered a new country or region. The purpose of post-entry plant quarantine is to prevent the establishment and spread of potentially harmful pests and diseases that might have been inadvertently introduced during international trade or travel.
Exclusion is one of the most important principles of plant disease management. It is the practice of preventing the introduction of pathogens into a region, farm, or planting. This can be done by a variety of methods, including:
* **Quarantine:** This is the practice of preventing the movement of plants, plant products, and other materials that may be infected with a pathogen from an area where the pathogen is present to an area where it is not present.
* **Inspection:** This is the process of checking plants and plant products for the presence of pathogens. Inspection can be done at ports of entry, on farms, and at other points along the transportation chain.
* **Certification:** This is the process of verifying that plants and plant products meet certain standards for freedom from pathogens. Certification is typically done by a government agency or a private organization.
* **Eradication:** This is the process of eliminating a pathogen from an area. Eradication is often used in conjunction with quarantine and inspection to prevent the spread of pathogens.
In addition to these methods, there are a number of other things that can be done to exclude pathogens from plant populations. These include:
* **Cleaning and disinfecting equipment:** Equipment that is used to handle plants, such as tools, machinery, and vehicles, can be a source of pathogens. Cleaning and disinfecting this equipment can help to prevent the spread of pathogens.
* **Using resistant cultivars:** Some cultivars of plants are resistant to certain pathogens. Planting these cultivars can help to reduce the risk of disease.
* **Good cultural practices:** Good cultural practices, such as crop rotation, sanitation, and weed control, can help to create an environment that is less favorable for the development of plant diseases.
Exclusion is an important part of an integrated approach to plant disease management. By using a combination of methods, it is possible to reduce the risk of plant diseases and protect crop yields.
Here are some additional examples of how exclusion can be used to manage plant diseases:
* **Growing plants in a greenhouse:** This can help to prevent the introduction of pathogens from the outside environment.
* **Using certified seed:** This ensures that the seed is free from pathogens.
* **Inspecting plants for pests and diseases before purchase:** This can help to prevent the introduction of pathogens into a new planting.
* **Quarantining new plants:** This can help to prevent the spread of pathogens from infected plants to healthy plants.
Exclusion is not always possible, but it is an important tool in the fight against plant diseases. By using exclusion methods, it is possible to reduce the risk of disease and protect crop yields.
Plant nematology is the study of nematodes, or roundworms, that are parasites of plants. These plant-parasitic nematodes can cause significant damage to crops, resulting in billions of dollars in losses worldwide ⁵. There is a lot of research being done to understand the interactions between parasitic nematodes and their plant hosts, and to develop new ways to control these pests ⁴. Is there anything specific you would like to know about plant nematology?
Source: Conversation with Bing, 13/7/2023
(1) (PDF) INTRODUCTORY-NEMOTOLOGY | ashish chaudhary - Academia.edu. https://www.academia.edu/34273375/INTRODUCTORY_NEMOTOLOGY.
(2) Plant Nematology Lab - University of Leeds. http://www.fbs.leeds.ac.uk/nem/.
(3) Plant Nematology: , 2nd Edition - Google Books. https://books.google.com/books/about/Plant_Nematology.html?id=LTv7AgAAQBAJ.
(4) Nematology - Wikipedia. https://en.wikipedia.org/wiki/Nematology.
(5) Plant Nematology | NHBS Academic & Professional Books. https://www.nhbs.com/plant-nematology-book.
Plant bacteriology is the study of bacteria that affect plants, including their taxonomy, ecology, pathogenesis, and management. Bacteria can cause diseases in plants, such as bacterial blight, canker, wilt, and rot, which can have a significant impact on agricultural productivity. Plant bacteriologists study the biology of plant-associated bacteria, including their life cycles, genetic diversity, and adaptation to different environments
Bacteria are classified based on several characteristics such as their shape, structure, biochemical properties, and genetic makeup. The classification system for bacteria is constantly evolving and changing as new discoveries are made.
Here is a brief overview of the bacterial classification system:
1. Domain: Bacteria belong to the domain Bacteria, which is one of the three domains of life, along with Archaea and Eukarya.
2. Phylum: Bacteria are further classified into different phyla based on their genetic makeup and cellular structure. Some common phyla include Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes.
3. Class: Each phylum is further divided into different classes based on specific characteristics. For example, the Proteobacteria phylum is divided into Alpha, Beta, Gamma, Delta, and Epsilon classes.
4. Order: Each class is further divided into orders based on specific characteristics. For example, the Order Enterobacteriales is a group of Gram-negative bacteria that includes common pathogens like Escherichia coli and Salmonella.
5. Family: Each order is further divided into families based on similarities in genetic and biochemical properties. For example, Enterobacteriaceae is a family of Gram-negative bacteria that includes many human pathogens.
6. Genus: Each family is further divided into genera, which are groups of bacteria that share common characteristics. For example, the genus Escherichia includes several species of Gram-negative bacteria, including the well-known pathogen Escherichia coli.
7. Species: Each genus is further divided into species, which are groups of bacteria that share many similarities and can interbreed. For example, Escherichia coli is a species of bacteria that is commonly found in the human gut and can cause illness when it contaminates food or water.
It's worth noting that some bacteria are difficult to classify because they have unique characteristics or do not fit neatly into the existing classification system. Additionally, the advent of genetic sequencing has led to the discovery of many new bacterial species, which has expanded our understanding of the diversity of life on Earth.
Deuteromycotina is a polyphyletic group of fungi that reproduce asexually by the generation of conidia (asexual spores). Because these fungi lack a sexual reproductive cycle, they do not have a known sexual stage in their life cycle. The categorization of Deuteromycotina has been debated, as the lack of a documented sexual stage has made determining their evolutionary links with other fungal taxa problematic. With the introduction of molecular biology tools in recent years, several Deuteromycotina species have been reassigned into other fungal phyla based on genetic similarities. Aspergillus, Penicillium, and Trichoderma are examples of Deuteromycotina that are commonly used in the biotechnology and pharmaceutical industries for the synthesis of antibiotics and other chemicals. However, genetic analysis has led to the reclassification of many of these fungi into different phyla.
plant virus replication, attachment, penetration, uncoating, transcription, translation, genome replication, assembly, release of virion, mRNA, tRNA, ribosome, RNA polymerase, three base code words, protein synthesis DNA dependent RNA polymerase, host cell machinery mRNA to protein
PCR (polymerase chain reaction) and Extraction of DNA from fungal plant patho...AjayDesouza V
PCR, Polymerase chain reaction, types of PCR, Template DNA, DNA polymerase, Primers, Nucleotides (DNTPs or deoxynucleotide triphosphates ), Denaturation, Annealing, Extension, Types of PCR, Multiplex PCR.
Long-range PCR.
Single-cell PCR.
Fast-cycling PCR.
Methylation-specific PCR (MSP)
Hot start PCR
High-fidelity PCR.
RAPD: Rapid amplified polymorphic DNA analysis.
Detection of fungal plant pathogen using PCR, Extraction of DNA from plant tissues,PCR amplification and detection of diagnostic amplicon
plant virus replication, about attachment, penetration, transcription translation and assembly and release of new virion, plant virus, virion, replication of virus, DNA virus, RNA virus
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills MN
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/
1. TOPICS:
• HISTORY OF AGRICULTURE,
• GLOBALAGRICULTURAL RESEARCH
SYSTEM NEED SCOPE AND
OPPORTUNITES
• ROLE IN PROMOTING FOOD
SECURITY,
• REDUCING POVERTY AND
PROTECTING THE ENVIRONMENT
V.AJAYDESOUZA
M.Sc. (Agri) Plant Pathology
Annamalai university
ajaydesouza0003@gmail.com
2. ORIGIN OF AGRICULTURE
• Agriculture began independently in
different parts of the globe, and included
a diverse range of taxa. At least eleven
separate regions of the Old and New
World were involved as independent
centers of origin. The development of
agriculture about 12,000 years ago
changed the way humans lived. They
switched from nomadic hunter-gatherer
lifestyles to permanent settlements and
farming
Ploughing with a yoke of horned cattle in
Ancient Egypt. Painting from the burial
chamber of Sennedjem, c. 1200 BC.
3. ORIGIN OF AGRICULTURE
9500 BCE (Earliest evidence for
domesticated wheat)
• By around 9500 BC, the eight Neolithic
founder crops – emmer wheat, einkorn
wheat, hulled barley, peas, lentils, bitter
vetch, chickpeas, and flax – were cultivated
in the Levant
large area in the Eastern
Mediterranean region of
Western Asia
LEVANT
6. 8000 BCE (Evidence
for cattle herding)
• People kept cattle around
for easy access to food,
including milk, blood, and
meat, and for use as load-
bearers and plows. The
taurine (humpless, B.
Taurus) was probably
domesticated somewhere in
the Fertile Crescent about
8,000 years ago.
Bos Primigenius Taurus
7. 7000 BCE (Cultivation
of barley; animals are
domesticated)
• Mehrgarh, one of the most
important Neolithic (7000 BC to
3200 BC) sites in archaeology, lies
on the "Kachi plain of Baluchistan,
Pakistan, and is one of the earliest
sites with evidence of farming
(wheat and barley) and herding
(cattle, sheep and goats) in South
Asia.
• "By 7000 BC, sowing and
harvesting reached Mesopotamia
and there, in the super fertile soil
just north of the Persian Gulf,
Sumerian ingenuity systematized it
and scaled it up. Mehrgarh
8. 6500 BCE (Cattle domestication in Turkey)
Remains of domesticated cattle dating
to 6,500 B.C. have been found in
Turkey and other sites in the Near East
approach this age also. Some
authorities date the domestication of
cattle as early as 10,000 years ago, and
others almost half that amount of time.
Regardless of the time frame it is
generally accepted that the
domestication of cattle followed sheep,
goats, pigs and dogs.
Reproduction of hunting cattle scenes from Çatalhöyük
wall paintings.
9. 6000 BCE (Indus Valley grows from wheat to cotton and sugar)
• Evidences of the presence of wheat and
some legumes in the 6th millennium BC
have been found in the Indus Valley By
3500 BC cotton growing and cotton textiles
were quite advanced in the valley.
• By 3000 BC farming of rice had started.
Other monsoon crop of importance of the
time was cane sugar.
• By 2500 BC, rice was an important
component of the staple diet in
Mohenjodaro near the Arabian Sea. By this
time the Indians had large cities with well-
stocked granaries.
Indus Valley wall sculpturing
10. 5500 BCE (Sumerians
start organized
agriculture)
• By the Bronze Age, wild food
contributed a nutritionally insignificant
component to the usual diet.
• If the operative definition of agriculture
includes large scale intensive
cultivation of land, mono-cropping,
organized irrigation, and use of a
specialized labour force, the title
"inventors of agriculture" would fall to
the Sumerians (The Sumerians were
one of the earliest urban societies to
emerge in the world, in Southern
Mesopotamia), starting ca. 5,500 BC
Sumer
11. 5400 BCE (Archaelogical proof for domestication of
chicken)
• Chickens (Gallus domestics) were first domesticated from a wild form called red jungle fowl, a
bird that still runs wild in most of Southeast Asia.
• It was probably domesticated by about 8,000 years ago in what is now Thailand; however,
recent research suggests there may have been multiple origins in distinct areas of South and
Southeast Asia.
12. 5400 BCE (Linearbandkeramik Culture in
Europe)
• The Linearbandkeramik Culture
(LBK) is the name given by
German archaeologist F.
Klopfleisch in 1884 to the first true
farming communities in central
Europe, dated between 5400 and
4900 BC.
• The LBK people are considered the
importers of agricultural products
and methods, moving the first
domesticated animals and plants
from the Near East and Central
Asia into Europe.
13. 5000 BCE (Africa
grows rice, sorghum)
In China, rice and millet were
domesticated by 8000 BC,
followed by the beans mung, soy
and azuki. In the Sahel region of
Africa local rice and sorghum were
domestic by 5000 BC. Local crops
were domesticated independently
in West Africa and possibly in New
Guinea and Ethiopia.
14. 4000 BCE (Ploughs
make an appearance in
Mesopotamia)
• Circa 4,000 BC, the plough (variously,
plow) is believed to have been invented
by the Sumerians of Mesopotamia
• Jethro Tull, the credit for having invented
the “seed drill”, one has been found to be
illustrated on a carved stone seal from
Sumer
• Though some hypothesize that
Domestication of the horse occurred as
early as 4000 BC in the Ukraine, the
horse was definitely in use by the
Sumerians around 2000 BC. (Horse is
domesticated in Ukraine).
15. 3000 BCE (Maize is
domesticated in
Americas)
• Maize was first domesticated,
probably from teosinte, in the
Americas around 3000-2700 BC,
though there is some
archaeological evidence of a much
older development.
• The potato, the tomato, the
pepper, squash, several varieties of
bean, and several other plants were
also developed in the New World,
as was quite extensive terracing of
steep hillsides in much of Andean
South America. Agriculture was
also independently developed on
the island of New Guinea.
16. 3000 BCE (Turmeric
is harvested at Indus
Valley
By 3000 B.C. turmeric,
cardamom, pepper and
mustard were harvested earlier
in India.
17. 2737 BCE Tea is
discovered
The Chinese have enjoyed tea
for millennia. Scholars hailed
the brew as a cure for a variety
of ailments; the nobility
considered the consumption of
good tea as a mark of their
status, and the common people
simply enjoyed its flavor. Tea
was first discovered by the
Chinese Emperor Shennong in
2737 BC
18. 2000 BCE 1st
windmill in Babylon
The first true windmill, a
machine with vanes attached to
an axis to produce circular
motion, may have been built as
early as 2000 B.C. in ancient
Babylon. By the 10th century
A.D., windmills with wind-
catching surfaces as long as 16
feet and as high as 30 feet were
grinding grain in the area now
known as eastern Iran and
Afghanistan
19. 1000 BCE sugar
processing in India
Sugar cane originated in New Guinea
where it has been known since about
6000 BC. From about 1000 BC its
cultivation gradually spread along
human migration routes to Southeast
Asia and India and east into the
Pacific. It is thought to have
hybridized with wild sugar canes of
India and China, to produce the 'thin'
canes. It spread westwards to the
Mediterranean between 600-1400 AD.
Sugar cane has a very long history of
cultivation in the Indian sub-continent
20. 500 BCE Row
cultivation in China
Scatter seed farming is the
practice of throwing the seed onto
the fields at random. By throwing
the seed randomly, half the seeds
would not grow and make it
impossible to weed the field. The
Chinese on the other hand, planted
individual seeds and rows, thus
reducing seed loss. The planting
of crops in rows also allowed for
intensive hoeing, which in turn
reduce weeds.
21. Year 200 (Multi-tube
seed drill invented in
China)
A seed drill is a device allowing to
plant seeds in the soil. Before the
introduction of seed drill, the common
practice was to "broadcast" seeds by
hand. Besides being wasteful,
broadcasting was very imprecise and
led to a poor repartition of seeds;
leading to low productivity. The
Sumerians used primitive single-tube
seed drills around 1,500 BCE, but the
invention never reached Europe.
Multi-tube seed drills were invented
by the Chinese in the 2nd century
BCE.
22. Year 700 (Arab
Agriculture Revolution)
• The Islamic Golden Age from the 8th
century to the 13th century witnessed
a fundamental transformation in
agriculture known as the Arab
Agricultural Revolution, or Medieval
Green Revolution.
• Crops from Africa such as sorghum,
crops from China such as citrus
fruits, and numerous crops from
India such as mangos, rice, and
especially cotton and sugar cane,
were distributed throughout Islamic
lands, which previously had not
grown these crops.
23. Year 1000 (Coffee
originates in Arabia)
Coffee as we know it kicked off
in Arabia, where roasted beans
were first brewed around A.D.
1000. By the 13th century
Muslims were drinking coffee
religiously. The ―bean broth‖
drove dervishes into orbit, kept
worshippers awake, and splashed
over into secular life. And
wherever Islam went, coffee
went too.
24. Year 1492 (Columbian
exchange changes
agriculture)
The Columbian Exchange has
been one of the most significant
events in the history of world
ecology, agriculture, and culture.
The term is used to describe the
enormous widespread exchange
of plants, animals, foods, human
populations (including slaves),
communicable diseases, and
ideas between the Eastern and
Western hemispheres that
occurred after 1492.
25. Year 1599 1st Practical
Green House is created
The idea of growing plants in environmentally
controlled areas has existed since Roman times.
The Roman emperor Tiberius ate a cucumber-
like vegetable daily. The Roman gardeners used
artificial methods (similar to the greenhouse
system) of growing to have it available for his
table every day of the year. Cucumbers were
planted in wheeled carts which were put in the
sun daily, and then taken inside to keep them
warm at night. The cucumbers were stored
under frames or in cucumber houses glazed
with either oiled cloth known as "specularia" or
with sheets of mica, according to the
description by Pliny the Elder
26. Year 1700 (British
Agricultural Revolution)
The 1st British Agricultural
Revolution describes a period of
agricultural development in Britain
between the 18th century and the
end of the 19th century, which saw
a massive increase in agricultural
productivity and net output. This
in turn supported unprecedented
population growth, freeing up a
significant percentage of the
workforce, and thereby helped
drive the Industrial Revolution.
27. Year 1700 (Charles
Townshend popularizes)
The 1st British Agricultural
Revolution describes a period of
agricultural development in Britain
between the 18th century and the
end of the 19th century, which saw
a massive increase in agricultural
productivity and net output. This
in turn supported unprecedented
population growth, freeing up a
significant percentage of the
workforce, and thereby helped
drive the Industrial Revolution.
Charles Townshend, 2nd Viscount
Townshend
28. Year 1837 (John Deere
invents steel plough)
In 1837 John Deere developed
and manufactured the first
commercially-successful cast-
steel plow. The wrought-iron
framed plow had a polished
steel share which made it ideal
for the tough soil of the
Midwest, and worked better
than other plows.
29. Year 1860 (Hay
cultivation changes)
In the 1860s early cutting
devices were developed that
resembled those on reapers
and binders; from these came
the modern array of fully
mechanical mowers, crushers,
windrowers, field choppers,
balers, and machines for
palletizing or wafering in the
field.
30. Year 1866 (Gregor
Mendel describes
Mendelian inheritance)
Mendelian inheritance (or
Mendelian genetics or
Mendelism) is a set of primary
tenets relating to the
transmission of hereditary
characteristics from parent
organisms to their children; it
underlies much of genetics.
31. Year 1879 (Milking
machine replaces hand
milking)
In 1879, Anna Baldwin patented
a milking machine that replaced
hand milking - her milking
machine was a vacuum device
that connected to a hand pump.
This is one of the earliest
American patents
32. Year 1892 (First practical gasoline-
powered tractor)
• Around 1850, the first traction engines were
developed from these, and were widely adopted for
agricultural use. Where soil conditions permitted,
like the US, steam tractors were used to direct-haul
ploughs, but in the UK, ploughing engines were
used for cable-hauled ploughing instead
• In 1892, John Froelich built the first practical
gasoline-powered tractor in Clayton County, Iowa
33. Year 1900 (Birth of industrial agriculture)
• The identification of nitrogen and phosphorus as
critical factors in plant growth led to the
manufacture of synthetic fertilizers, making possible
more intensive types of agriculture
• They include innovation in agricultural machinery
and farming methods, genetic technology,
techniques for achieving economies of scale in
production, the creation of new markets for
consumption, the application of patent protection to
genetic information, and global trade
• These methods are widespread in developed nations
and increasingly prevalent worldwide. Most of the
meat, dairy, eggs, fruits, and vegetables available in
supermarkets are produced using these methods of
industrial agriculture.
34. Year 1930 (First aerial
photos for agriculture)
During the 1930s and the 1940s,
the first aerial surveys of large
areas of the United States were
conducted to support government
programs in soil conservation
and forest management
35. Year 1930 (First plant
patent is given)
Since 1930, plants have been
patentable. The first plant
patent was granted to Henry F.
Bosenberg for a climbing or
trailing rose.
36. Year 1939 (DDT
becomes a rage)
In 1939, Paul Muller discovered
that DDT was a very effective
insecticide. It quickly became the
most widely-used pesticide in the
world. In the 1940s
manufacturers began to produce
large amounts of synthetic
pesticides and their use became
widespread. Some sources
consider the 1940s and 1950s to
have been the start of the
"pesticide era."
37. Year 1944 (Green
Revolution begins in
Mexico)
The consensus among some agronomists is
that the Green Revolution allowed food
production to keep pace with worldwide
population growth. The Green Revolution has
had major social and ecological impacts, and
with multi-million dollar backing from
organizations including the Gates Foundation,
the deployment of Green Revolution policies
will continue for some time. The Green
Revolution began in 1943 with the
establishment of the Office of Special Studies
38. Year 1972 (Organic
movement starts taking
roots)
In 1972 these organizations joined to form the
International Federation of Organic Agriculture
Movements (IFOAM).
The organic movement broadly refers to the
organizations and individuals involved worldwide in
the promotion of organic farming, which they
believe to be a more sustainable mode of
agriculture.
39. 1996 (Commercial
cultivation of genetically
modified plants)
Transgenic plants have been developed for various
purposes: resistance to pests, herbicides or harsh
environmental conditions; improved shelflife;
increased nutritional value - and many more. Since
the first commercial cultivation of GM plants in
1996, GM plant events tolerant to the herbicides
glufosinate or glyphosate and events producing the
Bt toxin, an insecticide, have dominated the market
41. Early Indian History
1. Indian agriculture began by 9000 BCE as a result of
early cultivation of plants, and domestication of crops
and animals.
2. Wheat, barley, and jujube were domesticated in the
Indian subcontinent by 9000 BCE.
3. Domestication of sheep and goat soon followed.
This period also saw the first domestication of the
elephant.
4. Barley and wheat cultivation—along with the
domestication of cattle, primarily sheep and goat—was
visible in Mehrgarh by 8000-6000 BCE.
5. Agro pastoralism in India included threshing,
planting crops in rows—either of two or of six— and
storing grain in granaries.
6. By the 5th millennium BCE agricultural
communities became widespread in Kashmir.
42. 7. The first evidence of cultivation of cotton had already developed'. Cotton was cultivated
by the 5th millennium BCE- 4th millennium BCE. The Indus cotton industry was well
developed and some methods used in cotton spinning and fabrication continued to be
practiced till the modern Industrialization of India.
8. A variety of tropical fruit such as mango, muskmelons are native to the Indian
subcontinent.
9. The Indians also domesticated hemp, which they used for a number of applications
including making narcotics, fiber, and oil.
10. The farmers of the Indus Valley grew peas, sesame, and dates.
Early Indian History
43. Early Indian History
11. Sugarcane was originally from
tropical South Asia and Southeast Asia.
12. Wild Oryza rice appeared in the Belan
and Ganges valley regions of northern
India as early as 4530 BCE and 5440 BCE
respectively.
13. Rice was cultivated in the Indus
Valley Civilization.
14. Agricultural activity during the 2nd
millennium BC included rice cultivation in
the Kashmir and Harappan regions.
15. Mixed farming was the basis of the
Indus valley economy.
44. Vedic period – Post Maha Janapadas
period (1500 BCE – 200 CE)
Jute was first cultivated in India, where it was
used to make ropes and cordage
1. There are repeated references to iron.
2. Cultivation of a wide range of cereals,
vegetables and fruits is described.
3. Meat and milk products were part of the
diet;
4. Animal husbandry was important.
5. The soil was plowed several times.
6. Seeds were broadcast.
7. Fallowing and certain sequence of cropping
were recommended.
8. Cow dung provided the manure. Irrigation
was practiced.
45. Early Common Era – High Middle Ages
(200–1200 Common Era (CE)
1. The Tamil People cultivated a wide range of crops
such as rice, sugarcane, millets, black pepper,
various grains, coconuts, beans, cotton, plantain,
tarnarind and sandalwood. Jackfruit, coconut, palm,
areca and plantain trees were also known.
2. Systematic ploughing, maturing, weeding,
irrigation and crop protection was practiced for
sustained agriculture.
3. Water storage systems were designed during this
period.
46. During the Chola Empire (875-
1279)
Crystallized sugar was
discovered by the time of the
Guptas (320-550 CE)
Chola rule land was transferred
and collective holding of land by
a group of people slowly gave
way to individual plots of land,
each with their own irrigation
system.
47. Late Middle Ages – Early Modern
Era (1200–1757 CE)
The construction of water works and aspects of water technology in India is described in
Arabic and Persian works. The diffusion of Indian and Persian irrigation technologies gave
rise to irrigation systems which bought about economic growth and growth of material
culture. Agricultural 'zones' were broadly divided into those producing rice, wheat or
millets. Rice production continued to dominate Gujarat and wheat dominated north and
central India. The Encyclopedia Britannica details the many crops introduced to India
during this period of extensive global discourse:
48. Agriculture in Colonial British Era
(1757–1947 CE)
1. Few Indian commercial crops—such as Cotton, indigo, opium, and rice—made
it to the global market under the British Raj in India.
2. The second half of the 19th century saw some increase in land under cultivation
and agricultural production expanded at an average rate of about 1 percent per
year by the later 19th century.
3. Due to extensive irrigation by canal networks Punjab, Narmda Valley, and
Andhra Pradesh became centers of agrarian reforms.
4. Agricultural performance in the interwar period (1918–1939) was depressing.
49. Republic of India (1947 CE onwards)
1. Bhakra Dam (completed 1963) is the largest dam in
India. The Bhakra-Nangal multipurpose dam was
among the earliest river valley development schemes
undertaken by independent India, although the project
was conceived long before India became a free nation.
Preliminary works commenced in 1946. Construction of
the dam started in 1948, Jawahar Lal Nehru poured the
first bucket of concrete into the foundations of Bhakra
on 17 November 1955 and the dam was completed by
the end of 1963. Successive stages were completed by
the early 1970s.
2. Tehri Dam on Bhagirathi River is the highest dam in
India.
3. Special programs were undertaken to improve food
and cash crops supply The Grow More Food Campaign
(1940s) and the Integrated Production Programme
(1950s) focused on food and cash crops supply
respectively.
50. 4. Five-year plants of India - oriented towards agricultural development—soon followed.
Land reclamation, land development, mechanization, electrification, use of chemicals—
fertilizers in particular, and development of agriculture oriented 'package approach' of
taking a set of actions instead of promoting single aspect soon followed under government
supervision.
5. The many 'production revolutions' initiated from 1960s onwards included Green
Revolution in India, Yellow Revolution (oilseed: 1986-1990), Operation Food (dairy:
1970-1996), and Blue Revolution (fishing: 1973-2002) etc.
6. Following the economic reforms of 1991, significant growth was registered in the
agricultural sector, which was by now benefiting from the earlier reforms and the newer
innovations of Agro-processing and Biotechnology.
51. 7. Various institutions for agriculture related research in India were organized under the
ICAR Indian Council of Agricultural Research (est. 1929). Other organizations such as the
National dairy development Borad (est. 1965), and National Bank for Agriculture and
Rural Development (est. 1982) aided the formation of cooperatives and improved
financing.
8. During 2003-04, agriculture accounted for 22 % of India's GDP and employed 58 per
cent of the country's workforce.
52. Global agricultural research system
• The global agricultural research system is a multi stakeholder platform
for dialogue on critical issue related to agricultural research for
development, advocate and facilitate collaborative action through
partnerships and assess impact of these actions.
• The global agricultural research system is driven by the consultative
group on international agricultural research system (CGIAR).
• CGIAR is a global partnership that unites organizations engaged in
research for food secure future.
53. CGIAR (The Consultative Group on International
Agricultural Research) - 1971
Its combination of public and private agencies
for promoting Agriculture Globally
54. Objectives:
1 . Food for People: Increases in the
productivity and production of healthy
food for the poor
2. Environment for People: Conserve
use natural resources and biodiversity to
improve to climate change and other
factors.
3. Policies for People: Promote policy
will stimulate agricultural growth and
equity to benefit the poor, especially
rural women and other disadvantaged
groups.
55. In December 2009 the
CGIAR adopted a new
institutional model
designed to improve its
delivery of research results
in a rapidly changing
external environment
56. The Global Conference on Agricultural Research for
Development (GCARD) represents a key opportunity
for engaging end users, including
1. Farmers,
2. Forest
3. Fishing communities
4. National Agricultural Research Systems (NARS),
in the development of new research programs.
57. Achievements
1. More than 50 varieties of recently
developed drought-tolerant maize varieties now grow on 1
million hectares across Eastern and Southern Africa.
2. zero-till technology has been widely
adopted in the vital rice-wheat systems of South Asia.
3. Kenya improves childhood nutrition
while generating jobs. This award-winning project with
smallholder dairies has contributed up to 80% of the milk
products sold in the country
58. The Consultative Group on International Agricultural
Research (CGIAR) is a global partnership that unites
organizations engaged in research for sustainable
development with the funders of this work.
59. The funders include developing and
industrialized country governments,
foundations, and international and
regional organizations.
The work they support is carried out
by 15 members of the Consortium of
International Agricultural Research
Centers, in close collaboration with
hundreds of partner organizations,
including national and regional
research institutes, civil society
organizations, academia, and the
private sectors.
60. Definition of food security
• The Food and Agricultural
Organization (FAO) states that
food security emerges when all
people at all times have physical
and economic access to
sufficient, safe and nutritious
food to meet their dietary needs
and food preferences for an active
and healthy life.
61. Major components OR Essential pillars of
food security
• Food availability
• Food access
• Food utilization
• Food stability
62. Food AVAILABILITY
• Food must be available in sufficient quantities and on a consistent
basis.
• It considers stock and production in a given area and the capacity to
bring in food from elsewhere, through trade or aid.
63. Food Access
• People must be able to
regularly acquire adequate
quantities of food, through
purchase, home production,
barter, gifts, borrowing or
food aid.
64. Food Utilization
• Consumed food must
have a positive
nutritional impact on
people. It entails
cooking, storage and
hygiene practices,
individuals health,
water and sanitation,
feeding and sharing
practices within the
household.
65. Food stability
• It is related to regular intake of
food. Even if ones food intake is
adequate today, one is still
considered to be food insecure if
one has inadequate access to
food on a periodic basis, risking
a deterioration of one’s
nutritional status. Adverse
weather conditions, political
instability, or economic factors
(unemployment, rising food
prices) may have an impact on
one’s food security status.
66. Role of promoting food security
• Ensuring and enabling social and economic environment.
• Implementing policies aimed at eradicating poverty and
inequality.
• Pursuing participatory and sustainable development
practices
• Fostering a world trade system that is both fair and market
oriented
• Anticipating natural disasters and crises
• Encouraging the optimal application and use of public and
private investments
• Implementing, monitoring and following up the plan of
Action
67. REDUCING POVERTY – Way forward
• Creating more and better jobs.
• Focusing on women and scheduled tribes – the most worrying trends
are the low participation of women in the labor market and the slow
progress among the scheduled tribes.
• Improving human development outcomes for the poor – Better health,
sanitation and education.
• Supply of water, sanitation and housing apart from health and
education.
• Banking and credit sector reforms.
• Universal Basic Income (UBI)
68. Environmental protection
• Environmental Protection includes programs that are aimed at
reducing risks to the environment from contaminants such as
hazardous materials and wastes, fuels, and oils.
• These programs address pollution prevention measures and regulatory
compliance by providing procedures for safely working with these
materials, inspecting the storage vessels and locations, and designating
preventative maintenance procedures.