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Which of the following prevents the fall of fruits : -
A
$GA_3$
B
NAA
C
Ethylene
D
Zeatin
Detailed Solution
Auxins prevent the formation of the abscission layer at the base of the fruit stalk.
So synthetic auxins such as NAA (naphthalene acetic acid) and 2,4-D are sprayed on apple, pear and citrus trees to prevent premature fruit drop.
Ethylene promotes abscission and fruit ripening.
So NAA prevents the fall of fruits.
So synthetic auxins such as NAA (naphthalene acetic acid) and 2,4-D are sprayed on apple, pear and citrus trees to prevent premature fruit drop.
Ethylene promotes abscission and fruit ripening.
So NAA prevents the fall of fruits.