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(a) Name the gaseous plant hormone. Desc...

(a) Name the gaseous plant hormone. Describe its three different actions in plants.
(b) Which hormone is known as stress hormone in plants ? Why?

Text Solution

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(i) Abscissic acid (ABA) is a growth inhibitor which regulates abscission and dormancy.
(ii) It increases tolerance of plants to various kinds of strees. So, it is also called as stress hormone.
(iii) It is found in the chloroplast of plants.
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