First slide

Plant Growth Regulators

Question

Match the following concerning the activity/ function and the phytohormone involved.
(a) Fruit ripener (i) Abscisic acid
(b) Herbicide (ii) ${GA}_{3}$
(c) Bolting agent (iii) 2, 4-D
(d) Stress hormone (iv) Ethephon
Select the correct option from following

Easy

A

(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
B

(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
C

(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
D

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

Solution

Fruit ripener – Ethephon (Hastens fruit ripening in tomatoes and apples)
Herbicide – 2, 4-D (Auxin)
Bolting agent – ${GA}_{3}_{}$ (Gibberellin); Gibberellins induce stem elongation in ‘rosette plants’ e.g., cabbage, beet, etc.
Stress hormone – Abscisic acid (ABA)

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