Asked in ETEA MDCAT 2010 2010

The hormone that causes seed and bud dormancy in plants is called

Correct answer: C. Abscisic acid

  • A. Auxins
  • B. Ethylene
  • C. Abscisic acid
  • D. Gibberellins

Explanation

Abscisic acid is a plant hormone that plays a crucial role in inducing and maintaining seed and bud dormancy. It is responsible for inhibiting growth and promoting dormancy in plants, especially in adverse environmental conditions.

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About Plant Growth Regulators

Plant growth regulators are chemical messengers that control growth, development and responses to the environment. The topic covers auxins, gibberellins, cytokinins, abscisic acid and ethylene, including cell elongation, apical dominance, tropisms, seed germination, dormancy, fruit ripening and leaf fall, with growth promoters distinguished from inhibitors.

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