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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
“Dormin” is a
  • A
    Growth promotor
  • B
    Auxin
  • ✓
    Abscisic acid
  • D
    None of the above
✓

Answer

Correct option: C.
Abscisic acid
c
(c)Abscisic acid is also called stress hormone or dormin. $\lambda $ Eagle and Wareing $(1963) $ discovered another substance ‘Dormin’ from dormant buds of Acer (Birch) plants, capable of causing dormancy of seeds.

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