The effects of inducing senescence and drooping of leaves are due to
(a) Auxin
(b) Ethylene
(c) Abscisic acid
(d) Cytokinin
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"The correct answer of the given question would be option (b) that is ethylene.
The ethylene is the plant hormone that is responsible for growth, reproduction and at last the senescence of the plant organs like the leaves, flowers etc.
The levels of ethylene, its perception and the changes in the level of the hormone directly or indirectly determines the life span of the plant.
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