A) abscisic acid
B) cytokinin
C) an auxin
D) a gibberellins
Correct Answer: B
Solution :
| [B] Skoog (1954-56) found that coconut milk contains a substance cytokinin which stimulated cell division in tobacoo pith culture. Abscisic acid is known as natural plant growth inhibitor. It produces senescence, abscission in leaves and dormancy in buds and seeds. Auxin is a plant growth hormone. Gibberellin is also a plant growth hormone which is originally isolated from the fungus Gibberella fujikuroi. |
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