HORTICULTURE SCIENCE
CROP PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Plant growth regulators can be both ____ and ____
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Natural, synthetic
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Hard, soft
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Synthetic, helpful
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Inhibiting, dormant
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Explanation:
Detailed explanation-1: -These plant hormones include both natural and synthetic sources. Indole-3-acetic acid and indole butyric acid are obtained from natural plant sources, whereas naphthalene acetic acid and 2, 4-dichlorophenoxyacetic acid are obtained from synthetic sources.
Detailed explanation-2: -Absicisic Acid: Absicsic acid controls the dormancy of buds and seeds, inhibits shoot growth and is involved in regulating water loss from plants. Ethylene: Ethylene promotes abscission of leaves and fruits, inhibits shoot elongation and inhibits lateral bud development.
Detailed explanation-3: -So the correct option is ‘Ethylene’.
There is 1 question to complete.