All of the following are methods to break the seed dormancy EXCEPT
Correct answer: C. Keeping the seed coats hard and dry
- A. Exposing the seeds to heat
- B. Treating the seed coats with acid
- C. Keeping the seed coats hard and dry
- D. Giving low temperature treatment to seeds
Explanation
The only option that does not break dormancy is keeping the seed coats hard and dry, hence option C is correct.To break seed dormancy, methods like exposing seeds to heat, treating seed coats with acid, and giving seeds low-temperature treatment are effective. Heat softens hard seed coats, acid mimics digestive processes that weaken the coat, and cold stratification triggers biochemical changes in seeds with physiological dormancy. In contrast, keeping seed coats hard and dry does not break dormancy.
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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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