Q12 / 180 · AIIMS 2017 · Botany

Identify the incorrect statement about $\mathrm{ABA}$ growth regulator.

  • A
    It increases the tolerance of plants against different stresses.
  • B
    It acts as general plant growth inhibitor and inhibitor of metabolism.
  • C
    It helps in seed maturation and dormancy.
  • Correct answer
    D
    It promotes morphogenesis and differentiation of shoots.

Solution

Abscisic acid (ABA) is a growth inhibitor. Both auxins and cytokinins are essential for morphogenesis or differentiation of tissues and organs. Auxins stimulate root formation however when cytokinins are in excess stem buds develop.

Hence, the correct answer is option: 'D'.

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