Class 11 Biology Plant Physiology Plant Growth and Development



A method of breaking dormancy and allowing ample absorption of water is
(a)
Stratification
(b)
Scarification
(c)
Vernalisation
(d)
Devernalisation
Correct answer: (b) 
Solution: A. Stratification: Seeds are moistened and exposed to oxygen for variable period at low or high temperature.

B. Scarification: Hard, impermeable seed coat is weakened or ruptured by filing, chip­ping, abosrbing hot water.

C. Vernalisation- The cooling of seed during germination in order to accelerate flowering when it is planted.

D. Devernalisation- The heating of seed during germination in order to deaccelrating flowering when it is planted.
So, the correct answer is 'Scarification'.

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Connecting you to a tutor in 60 seconds.
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plant growth and development
transport in plants
respiration in plants
mineral nutrition
morphology of flowering plants