HORTICULTURE SCIENCE
PLANT BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Deciduous trees, such as those that lose their leaves in autumn, are a result due to the subjection of which type of plant hormone?
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Ethylene
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Ethylene gas
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Auxins
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Gibberellins
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Explanation:
Detailed explanation-1: -Auxins, cytokinins, and gibberellins delay abscission; ABA and ethylene commonly accelerate abscission. Growing leaves with high levels of auxins, cytokinins, and gibberellins do not abscise, but when levels of these hormones decrease, the leaves begin to senesce and eventually abscise.
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