Name and state briefly one function each of any three phytohormones
Answers
Answer:
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Explanation:
(i) Abscisic acid: inhibits growth, wilting of water of leaves
(ii) Gibberellins: helps the growth of stream
(iii) Cytokinins: promotes cell division
Detailed Answer :
(i) Auxin: Promotes cell elongation and division, also helps in the formation of roots and seedless fruits.
(ii) Gibberellins: These are the hormones that help in the growth of the stem and flower.
(iii) Cytokinins: It promotes cell division and delays ageing in leaves. It reduces apical dominance and also stimulates the leaf expansion.
(iv) Abscisic acid: It is a growth-inhibitor hormone that reverses the growth-promoting effects of auxin and gibberellins. It causes dormancy of seeds, wilting of leaves, closing of stomata and loss of proteins and chlorophyll.
(v) Ethylene: It promotes transverse growth, also promotes senescence and abscission of leaves. It acts as an essential hormone for the ripening of fruits.
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