NEETBotanyPlant - Growth and Development
Match List-I with List-II. List-I List-II (A) Thinning of cotton, cherry and walnut (I) Cytokinin (B) Bolting in beet and cabbages (II) Abscisic acid (C) Closure of stomata (III) Gibberellin (D) Overcoming apical dominance (IV) Ethephon Choose the correct answer from the options given below:
Options
- A(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
- B(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
- C(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
- D(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
Correct answer
A. (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
Step-by-step solution
(A) Ethephon (the most widely used source of ethylene) accelerates abscission in flowers and fruits, leading to the thinning of cotton, cherry, and walnut. (B) Gibberellins promote bolting (internode elongation just prior to flowering) in beet, cabbages, and many plants with a rosette habit. (C) Abscisic acid (ABA) acts as a stress hormone and stimulates the closure of stomata in the epidermis during water stress. (D) Cytokinins help overcome apical dominance, a condition normally maintained by auxins. Therefore, t