MCQ
Fruit and leaf drop at early stages can be prevented by the application of
  • A
    ethylene
  • auxins
  • C
    gibberellic acid
  • D
    cytokinins.

Answer

Correct option: B.
auxins
b
(b) : In low concentrations, auxins such as $2, 4­-D(2,4 -$­ Dichlorophenoxy acetic acid ) is useful in preventing, pre­harvest fruit drop and leaf drop.

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