Which plant hormone is used to initiate flowering and for synchronizing fruit set in pineapples?

Kinetin

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Giberellin

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ABA

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Ethylene

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Solution

The correct option is D Ethylene
Ethylene initiates flowering and synchronises fruit-set in pineapples. It is a gaseous plant growth regulator which also hastens the ripening of fruits and promotes abscission and senescence of leaves and flowers. It is commonly used in the form of Ethephon which releases ethylene slowly from an aqueous solution.
So, the correct answer is, 'Ethylene'.

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