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  4. plant growth and development

plant growth and development


What would be expected to happen if:

(a) GA3 is applied to rice seedlings

(b) dividing cells stop differentiating

(c) a rotten fruit gets mixed with unripe fruits

(d) you forget to add cytokinin to the culture medium

class-11 biology plant growth and development
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Would a defoliated plant respond to a photoperiodic cycle? Why?

class-11 biology plant growth and development
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Which one of the plant growth regulators would you use if you are asked to:

a. Induce rooting in a twig

b. Quickly ripen a fruit

c. Delay leaf senescence

d. Induce growth in axillary buds

e. Bolt a rosette plant

f. Induce immediate stomatal closure in leaves.

class-11 biology plant growth and development
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‘Both a short-day plant and a long-day plant can flower simultaneously in a given place’. Explain

class-11 biology plant growth and development
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‘Both growth and differentiation in higher plants are open’. Comment.

class-11 biology plant growth and development
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