GROWTH DEVELOPMENT CHILD
GROWTH AND DEVELOPMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gibberellins delay senescence of leaves.
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Gibberellins prevent bolting and are inactivated.
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Auxins prevent leaf drop at early stages.
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Effect of auxins is removed and growth of lateral buds is enhanced.
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Detailed explanation-1: -This is because – Auxin shows apical dominance. Removal of auxin by removal of shoot tips prevents the apical dominance and promotes the growth of lateral buds which is a very useful in tea leaves production.
Detailed explanation-2: -It is due to the plant hormone known as Auxin. It is produced in the tip of the axillary bud and the shoot. Auxin concentration decreases when the apical bud is removed which results in the growth of lateral branches.
Detailed explanation-3: -Reason: Removal of shoot tips usually results in the growth of lateral buds. Q. I. Assertion: The presence of apical bud inhibits the growth of lateral bud, this is called apical dominance.
Detailed explanation-4: -The plant hormone auxin affects cell elongation in both roots and shoots. In roots, the predominant action of auxin is to inhibit cell elongation while in shoots auxin, at normal physiological levels, stimulates elongation.
Detailed explanation-5: -<br> Reason : Removal of shoot tips usually results in the growth of lateral buds. Assertion : Decapitation is widely used in tea plantation and hedge-making. <br> Reason : Removal of shoot tips usually results in the growth of lateral buds.