Vegetative Propagation in Plants


 
 
Concept Explanation
 

Vegetative Propagation in Plants

In which, a cell, tissue or part of an organ of a plant develops into a new organism. Vegetative parts such as root, stem and leaf can be used to produce new plants. It is known as vegetative reproduction.

Natural methods : They do with the help of stems, roots and leaves.

Roots: Tuberous roots of dahlia, sweet potato can be set for multiplication. These roots have food stored in them.

Stems: Vegetative propagation through stems is of the following types:

  • Plants such as grass have horizontal stems growing parallel to the ground, almost touching it.
  • In plants such as mint horizontal stems arise from the base of the erect shoot, grow horizontally in the soil and then come out to form new aerial shoots.
  • Some underground stems are: bulbs, tubers, rhizomes and corms.
  • Rhizomes have buds from which outgrowths are produced which give rise to new plants. E.g. Ginger, turmeric, banana.
  • Bulbs are very short underground stems in thickened fleshly bulb scales. Scales serve as sites of food storage.
  • Tubers have buds in the eyes, which give rise to new plants e.g. potato.
  • Corms have lots of rhizomes joined together which develop into new plants e.g. colocasia.
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    Sample Questions
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    Question : 1

    Bryophyllum reproduces vegetatively by its ______________

    Right Option : B
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    Question : 2

    A small part of one plant called _____________________  is inserted into the stem or root system of another plant fixed into the soil.

    Right Option : B
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    Question : 3

    Which of the following are correct ?

    (a) Rhizomes have buds from which outgrowths are produced which give rise to new plants. E.g. Srawberry, mint .

    (b) Bulbs are very short underground stems in thickened fleshly bulb scales. Scales serve as sites of food storage.

    (c) Tubers have buds in the eyes, which give rise to new plants e.g. potato

    Right Option : B
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    Explanation
     
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