The temperature required for vernalization is approximately:
Correct answer: C. 4˚C
- A. 2˚C
- B. 3˚C
- C. 4˚C
- D. 10˚C
Explanation
Vernalization requires an exposure to temperatures between 0-6 °C for several months.
This question appeared on the ETEA MDCAT 2014 paper, which you can sit online with every answer explained.
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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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