Class 11 Biology Plant Physiology Plant Growth and Development



Secondary dormancy is due to the absence of 
(a)
Suitable plant
(b)
Favourable conditions
(c)
Hormones
(d)
None of the above
Correct answer: (b) 
Solution: Dormancy generally occurs due to unfavorable ecological conditions for germination but secondary dormancy occurs due to unfavorable conditions such as high temperature; these conditions occur after the seed has been dispersed and the mechanism is not fully understood.
Thus, the correct answer is option B.

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plant growth and development
transport in plants
respiration in plants
mineral nutrition
morphology of flowering plants