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STD 11 - 13. Plant growth and development — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 13. Plant growth and development4 Marks
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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