Asextual production ppt
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Asexual reproduction allows organisms to reproduce without the involvement of gametes or sex. In asexual reproduction, offspring are genetically identical to the parent. In plants, asexual reproduction occurs through various vegetative propagation methods like budding, binary fission, spore formation, and the growth of vegetative plant parts like roots, stems, leaves, and bulbs. Common examples of vegetative propagation include the growth of potatoes from eyes, ginger from rhizomes, and mint from horizontal stems. Cuttings, layering, grafting, and tissue culture are also artificial methods used in vegetative plant propagation. Asexual reproduction allows for faster reproduction and the preservation of desirable traits, but also makes organisms more vulnerable to diseases.
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This document discusses various plant propagation methods including sexual and asexual reproduction. Sexual reproduction involves seeds while asexual reproduction multiplies plants vegetatively using plant structures like stems, leaves, and roots. Some common asexual propagation methods described are bulbs/corms, cuttings, layering, grafting, budding, and micropropagation or tissue culture. Each method has advantages like cloning desirable traits or multiplying plants quickly, as well as disadvantages like transmitting diseases or lacking genetic variation.
Plant propagation
Plant propagation is the process of growing new plants. There are two main types: sexual propagation, which involves the union of male and female reproductive parts to produce seeds; and asexual propagation, which produces new plants from parts of the parent plant without seeds. Asexual propagation methods include stem cuttings, modified stems like rhizomes, tubers, and bulbs, as well as leaves where plantlets grow along the edges.
Plant propagation
Plant propagation is the process of growing new plants. There are two main types: sexual propagation, which involves the union of male and female reproductive parts to produce seeds; and asexual propagation, which produces new plants from parts of the parent plant without seeds. Asexual propagation methods include stem cuttings, modified stems like rhizomes, tubers, and bulbs, as well as leaves where plantlets grow along the edges.
Parts of Plants
The document discusses the different parts of plants and their functions. It states that roots absorb water and minerals from soil and anchor the plant. Stems support the plant, transport water and nutrients, and can be herbaceous or woody. Leaves capture sunlight to produce food for the plant through photosynthesis. Flowers contain pollen and ovules that develop into fruit containing seeds for new plants. The document also defines key terms like photosynthesis and describes characteristics of different plant types.
Plant Diversity and Reproduction
A Powerpoint intended for the South African Grade 11 Life Sciences syllabus. Contains information on plant classification, diversity, reproduction, the plant 'life cycle' and more.
Leaf- Parts of plant - part-1
The document discusses the structure and functions of plant leaves. It begins by introducing leaves and describing their key components, such as the upper and lower surfaces, stomata, and venation. It then discusses the leaf in more detail, explaining that leaves are the primary sites of photosynthesis and are important for plant survival and for producing oxygen. The document also covers leaf pigments, the differences between root and shoot systems, types of root systems (taproot and fibrous), and the main parts of leaves (base, petiole, lamina).
Asexual reproduction in Plant.pptx
Topic is Asexual reproduction in plant ,in Detail with proper diagram and example.
The diagram are taken form web browser and notes is taken from liable source, ref books and NCERT book.
I can assure you that if you go through this ppt then you will not need any Reference book to read or to make note.
Reference is Textbook of NEET and AIIMS "Botany"
so plz give me your valuable feedback.
Thank you
Plantkingdom
This document provides an overview of plant structures and classifications. It discusses that plants are classified into kingdoms based on their tissues and reproductive structures. The main groupings discussed are non-vascular plants like mosses, vascular plants without seeds like ferns, and vascular plants with seeds which are divided into gymnosperms and angiosperms. Key structures of plants mentioned include leaves, which perform photosynthesis, stems which transport water and nutrients, roots which absorb water and minerals, and flowers which produce seeds. The document also provides examples to illustrate plant tissues, leaf structures, root systems, and adaptations.
Botany session 2
The document discusses angiosperm morphology and focuses on roots. It describes root systems such as taproots and fibrous roots. Taproots are found in dicots and have a main root with lateral roots, while fibrous roots are found in monocots and arise from the stem. Roots function to anchor plants, absorb water and minerals, and transport and store nutrients. The structure of roots including the root cap, meristem, elongation zone, and root hairs is explained. The document also discusses soil composition and the role of soil in root growth. Finally, it notes that some roots are modified for food storage as tubers.
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Asextual production ppt
- 2. โข Asexual reproduction produces identical offspring. โข Only one parent is needed in asexual reproduction, and the offspring produced are genetically identical.
- 3. Asexual Reproduction in Plants Asexual Reproduction: โขIt does not involve the formation of gametes. New organisms are formed either by the division of the parent body or by the differentiation of the parent body. โขAsexual reproduction occurs through, 1. Budding 2. Binary fission 3. Spore formation 4. Vegetative Propagation โ The roots, stems and leaves are called vegetative parts of a plant. When any of these give rise to new plants, it is called vegetative reproduction.
- 4. Modes of Asexual Reproduction Budding โข Budding is commonly found in yeast cells. The bud is formed on the body of the parent, gets detached and forms a new individual. Binary Fission in Bacteria: โข Bacterial binary fission is the process that bacteria use to carry out cell division as shown below. Spore formation: โข In plants like ferns, spores are formed on the underside of the leaves. These are capable of developing into new plants when they are carried by the wind to other places with suitable conditions for growth. Fragmentation Spirogyra breaks into smaller pieces on maturation and each fragment grows into a new individual. โข Vegetative reproduction by roots โข When sweet potatoes, asparagus, carrot are buried in the soil, they give rise to new plants.
- 5. Vegetative reproduction by stems Tuber: โข Example: Potato, The โeyesโ are actually buds which give rise to new plants. If a piece of potato without the โeyeโ portion is planted, it cannot develop into a new plant. Rhizome: โข Example: Ginger also gives rise to new plants from buds on the stem. It has nodes and internodes and thin dry papery scaly leaves. Bulbs of onion: โข This has a thick short stem in the form of a condensed disc covered by scale leaves. The disc has buds which can grow into new plants. โข Some plants have horizontal stems. Roots and shoots develop at the nodes to form new plants. โข Example: Mint, grass.
- 6. Vegetative reproduction by leaves โข Bryophyllum bears buds on its leaf margins. When these fall on the ground, they develop into new plants.
- 7. Artificial Vegetative Propagation Cutting โข Cutting is removing a part of the stem and planting it into the soil to allow the growth of roots and buds. โข Example: Sugarcane, rose, china rose, pears. Layering: โข The lower branch of a plant is selected and a ring of the bark is removed from the stem. The portion where the bark is removed is bent and covered with soil. The branch is kept covered with the soil for a few days during which new roots start to develop on the branch. The branch is then cut off from the parent plant and allowed to grow as an individual plant. โข Example: Hibiscus, jasmine, rose, bougainvillea. Grafting: โข A small branch is cut from the plant to be grown with a wedge-shaped end. This is called scion. Now a V-shaped cut is made in the stem of a rooted plant called stock. The scion is now fitted into the stock and they are taped together. Soon the graft becomes part of the rooted plant. Tissue Culture: โข Tissue culture is one of the ways of cloning plants. It works with small pieces of plants, called explants.
- 8. โข Advantages of vegetative reproduction or vegetative propagation 1. Useful to grow seedless varieties. 2. Faster and easier than the natural process. 3. The only method of reproduction for plants which do not produce seeds Example: Banana and rose 4. Offspring resemble the parent exactly.
- 9. โข Disadvantages of vegetative reproduction or vegetative propagation 1. Being identical in all respects, these plants may be prone to disease at the same time. 2. Dispersal cannot occur naturally so there tends to be overcrowding.
- 10. Thank you