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

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
One of the preventive methods of fruit drop is by spraying
  • ✓
    Auxin
  • B
    Ethylene gas
  • C
    Gibberellins
  • D
    Cytokinine
✓

Answer

Correct option: A.
Auxin
a
(a)Abscission layer is produced when the auxin content falls below a minimum. Application of auxin retards the abscission of leaves, fruits, branches, etc.

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