Question

Give the function of Auxin, gibberellins, cytokinin and absicisic acid .​

Answer 1

Auxin:- promotes cell division and cell elongation promotes fruit growth

Gibberellins :- promotes cell enlargement and cell differentiation in presence of auxin and breaks dormancy of seed

Cytokinins :-delay ageing of leaves opening of stomata

Abscic acid :-promotes dormancy of seed promotes closing of stomata promotes wilting and falling of leaves

Answer 2

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Auxins :

1. They help in the growth of the stem

2.They inhibit the growth of lateral buds.

3. They promote the formation of Adventitious roots in cuttings .

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Gibberellin:

1. It produces hyper elongation of the stem .

2.It promotes seed germination .

3. it stimulates flowering in long day plants.

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Cytokinin:

1. It promotes cell division .

2. It promote shoot formation in tissue culture .

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Abscisic acid;

1. It causes wilting of leaves.

2.It prevents seed germination.

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