Class 11 Biology Plant Physiology Plant Growth and Development

Type of seed dormancy is

(a)
Physiological
(b)
Morphological
(c)
Mechanical
(d)
All of the above
Correct answer: (d) 
Solution: The conditions present outside the embryo causes Exogenous dormancy and are grouped into physiological, morphological and mechanical dormancy.
So the correct option is 'All of the above.'

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plant growth and development
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anatomy of flowering plants
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