Seed storage involves preserving seeds with their initial quality from harvest until planting. There are different stages of storage from when seeds reach maturity on the plant until they are planted. The main objectives of storage are to maintain seed germination, purity, and vigor by providing suitable storage conditions. Key factors that influence seed longevity during storage include moisture content, temperature, humidity, pests, and the genetic characteristics of the seeds. Proper storage requires dry, cool conditions with pest control and high-quality seeds.
Introduction to seed and seed technologyNSStudents
The Presentation is prepared by the N.S Institution of science, Markapur.
It consists of a basic introduction related to Introduction to seed and seed technology.
In this presentation discuses about what is seed testing and what are the objective and important , what are the different types of quality assessment test .
What is Rouging?
Rouging for quality seed production,
A major source of off-type plant,
Rouging in Certified Seed Production,
Rouging During rice seed production.
Seed marks the beginning of each plant production and therefore
ensuring its quality is the priority of modern seed science and a prerequisite
for obtaining high yields of all plant species. Determination of seed quality
and its viability indicates what seed lots can be placed onto the market, and
for that reason it is very important to have reliable methods and tests to be
used for seed quality and seed vigour testing
SEED STORAGE
What is seed storage - preservation of seed with initial quality until it is needed for planting.
Stages of Seed Storage
The seeds are considered to be in storage from the moment they reach physiological maturity until they germinate or until they are thrown away because they are dead or otherwise worthless.
The entire storage period can be conveniently divided into following stages.
Storage on plants ( physiological maturity until harvest).
Harvest, until processed and stored in a warehouse.
In - storage ( warehouses)
In transit ( Railway wagons, trucks, carts, railway sheds etc.).
In retail stores.
On the user's farm.
Introduction
The ability of seed to tolerate moisture loss allows the seed to maintain the viability in dry state. Storage starts in the mother plant itself when it attains physiological maturity. After harvesting the seeds are either stored in ware houses or in transit or in retail shops. During the old age days , the farmers were used farm saved seeds, in little quantity, but introduction of high yielding varieties and hybrids and modernization of agriculture necessitated the development of storage techniques to preserve the seeds.
The practice of storing the seeds starts from the ancient days itself, following simple and cheap techniques e.g. Placing the seeds in salt, red earth treatment to red gram etc. But the same practices are not hold good for the present day agriculture, because
large quantity to be stored
exchange of varieties and species
exchange of genes
The type of material to be stored decides the techniques to be followed for safe storage. Now a day’s storage technique changed from ordinary go-down storage to cryogenic tank storage and even gene storage.
Objective of seed storage
To maintain initial seed quality viz., germination, physical purity, vigour etc., all along the storage period by providing suitable or even better conditions.
Since the main objective of seed storage is maintenance of an acceptable capacity for germination and emergence, it can only be accomplished by reducing the rate of deterioration to the degree required to maintain an acceptable level of quality for the desired period.
Purpose of seed storage
Seed storage is the maintenance of high seed germination and vigour form harvest until planting. Is important to get adequate plant stands in addition to healthy and vigourous plants. Every seed operation has or should have a purpose. The purpose of seed storage is to maintain the seed in good physical and physiological condition from the time they are harvested until the time they are planted. Seeds have to be stored, of course, because there is usually a period of time between harvest and planting. During this period, the seed have to be kept somewhere. While the time interval between harvest and planting is the basic reason for storing seed, there are other considerations, especially in the case of extended storage of seed.
Introduction to seed and seed technologyNSStudents
The Presentation is prepared by the N.S Institution of science, Markapur.
It consists of a basic introduction related to Introduction to seed and seed technology.
In this presentation discuses about what is seed testing and what are the objective and important , what are the different types of quality assessment test .
What is Rouging?
Rouging for quality seed production,
A major source of off-type plant,
Rouging in Certified Seed Production,
Rouging During rice seed production.
Seed marks the beginning of each plant production and therefore
ensuring its quality is the priority of modern seed science and a prerequisite
for obtaining high yields of all plant species. Determination of seed quality
and its viability indicates what seed lots can be placed onto the market, and
for that reason it is very important to have reliable methods and tests to be
used for seed quality and seed vigour testing
SEED STORAGE
What is seed storage - preservation of seed with initial quality until it is needed for planting.
Stages of Seed Storage
The seeds are considered to be in storage from the moment they reach physiological maturity until they germinate or until they are thrown away because they are dead or otherwise worthless.
The entire storage period can be conveniently divided into following stages.
Storage on plants ( physiological maturity until harvest).
Harvest, until processed and stored in a warehouse.
In - storage ( warehouses)
In transit ( Railway wagons, trucks, carts, railway sheds etc.).
In retail stores.
On the user's farm.
Introduction
The ability of seed to tolerate moisture loss allows the seed to maintain the viability in dry state. Storage starts in the mother plant itself when it attains physiological maturity. After harvesting the seeds are either stored in ware houses or in transit or in retail shops. During the old age days , the farmers were used farm saved seeds, in little quantity, but introduction of high yielding varieties and hybrids and modernization of agriculture necessitated the development of storage techniques to preserve the seeds.
The practice of storing the seeds starts from the ancient days itself, following simple and cheap techniques e.g. Placing the seeds in salt, red earth treatment to red gram etc. But the same practices are not hold good for the present day agriculture, because
large quantity to be stored
exchange of varieties and species
exchange of genes
The type of material to be stored decides the techniques to be followed for safe storage. Now a day’s storage technique changed from ordinary go-down storage to cryogenic tank storage and even gene storage.
Objective of seed storage
To maintain initial seed quality viz., germination, physical purity, vigour etc., all along the storage period by providing suitable or even better conditions.
Since the main objective of seed storage is maintenance of an acceptable capacity for germination and emergence, it can only be accomplished by reducing the rate of deterioration to the degree required to maintain an acceptable level of quality for the desired period.
Purpose of seed storage
Seed storage is the maintenance of high seed germination and vigour form harvest until planting. Is important to get adequate plant stands in addition to healthy and vigourous plants. Every seed operation has or should have a purpose. The purpose of seed storage is to maintain the seed in good physical and physiological condition from the time they are harvested until the time they are planted. Seeds have to be stored, of course, because there is usually a period of time between harvest and planting. During this period, the seed have to be kept somewhere. While the time interval between harvest and planting is the basic reason for storing seed, there are other considerations, especially in the case of extended storage of seed.
A genetic preservation serves as an insurance policy for breeders and owners of valuable cattle by enabling them to extend and develop a specific bloodline when additional production is needed or untimely losses or reproductive inabilities occur.
presenation only for exsitu conservation includes topic (Components of ex-situ conservation
Plant genetic resources conservation in gene banks, national gene banks and gene repositories
Preservation of genetic materials under natural conditions, Perma-frost conservation
Guidelines for sending seeds to network of active/ working collections
Orthodox and recalcitrant seeds- differences in handling
Clonal repositories
genetic stability under long term storage condition)
Cultivation of medicinal plants requires intensive care and management.
The conditions and duration of cultivation required vary depending on the quality of medicinal plant materials required.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
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1. SEED STORAGE;
GENERAL PRINCIPLES,STAGES & FACTORS
AFFECTING SEED LONGEVITY DURING
STORAGE
PRESENTED BY:-
Sudhansu Sekhar Barik-033
Bismoy Mohanty-034
Amlanjyoti Khuntia-035
Prachi Pratyasa Deo-036
Samprati Patra-037
PRESENTED TO:-
Ms. Mandakini Kabi
Asst. Professor
Sri Sri University
Cuttack
2. LIST OF TABLES:-
What is seed storage?
Stages of Seed Storage.
Storage Categories.
Objective.
Purpose
Types.
General Principles of Seed Storage.
Factors influencing Seed Longevity.
References.
3. WHAT IS SEED STORAGE ?
Seed storage is preservation of seed with initial
quality until it is needed for planting.
The ability of seed to tolerate moisture loss allows
the seed to maintain the viability in dry state.
After harvesting the seeds are either stored in ware
houses or in transit or in retail shops.
Storage starts in the mother plant itself when it
attains physiological maturity.
4. The entire storage period can be conveniently divided
into following stages.
Storage on plants (physiological maturity until
harvest).
Harvest, until processed and stored in a warehouse.
In - storage ( warehouses)
In transit (Railway wagons, trucks, carts, railway sheds
etc.).
In retail stores.
On the user's farm.
5. The seeds are considered to be in
storage from the moment they reach
physiological maturity until they
germinate or until they are thrown
away because they are dead or
otherwise worthless
6. STORAGE CATEGORIES:-
Orthodox Seed-Water can be removed safely >
90% seeds are orthodox
Intermediate Seed-Some Water can be removed
Recalcitrant Seed-Water Removal is lethal (Tropical
Fruit seed can tend to be recalcitrant)
7. OBJECTIVE OF SEED STORAGE:-
To maintain initial seed quality viz., germination,
physical purity, vigour etc., all along the storage
period by providing suitable or even better
conditions.
Since the main objective of seed storage is
maintenance of an acceptable capacity for
germination and emergence, it can only be
accomplished by reducing rate of deterioration to
the degree required to maintain an acceptable level
of quality for the desired period.
8. Storage is needed to maintain the seed in good
physical and physiological condition from the
time they are harvested until the time they are
planted.
The unsold seed are carried over in storage for
marketing during the second planting season.
Some kinds of seed are stored for extended
periods to improve the percentage and rapidity
of germination by providing enough time for a
natural release from dormancy.
9. TYPES OF SEED STORAGE
1. Storage at ambient temperature and humidity
2. Dry storage with control of moisture content
but not temperature
3. Dry storage with control of both moisture
content and temperature
4. Dry storage for long-term gene conservation
5. Moist storage without control of moisture
content of temperature
6. Moist cold storage, with control of temperature
7. Cryopreservation
10. The types of storage needed can be
related to the time of storage expected.
Broadly this can be classified into 4 types
a) Storage of commercial truthfully labelled
& certified seed
b) Storage of carry over seeds
c) Storage of foundation seed stocks &
enforcement seed samples
d) Storage of germplasm seeds
11. GENERAL PRINCIPLES OF SEED STORAGE.
1. Seed storage conditions should be dry and cool
2. Effective control of storage pests
3. Proper sanitation in seed stores
4. Before placing seeds into storage they should be
dried to safe moisture limits, appropriate for storage
system.
5. Store only high quality seed i.e. seeds which are
well cleaned, treated, with high germination and
vigour.
6. Determine seed storage needs in view of period or
length of storage time and prevailing climate of the
area during storage period.
12. FACTORS INFLUENCING SEED LONGEVITY
1. Biotic factors-
a. Factors related to seed
Genetic makeup of seed
Initial seed quality
Provenance
Seed moisture content
b. Other biotic
Insects
Fungi
Rodents
Mishandling during sampling, testing
2. Abiotic factors-
Temperature
Relative humidity
Seed store sanitation
Gaseous atmosphere
Packaging material
Seed treatment