| Column-I (Phytohormones) | Column-II (Functions) | ||
| A. | Auxins | p. | breaking seed dormancy |
| B. | Gibberelines | q. | inducting fruit ripening |
| C. | Cytokinins | r. | formation of abscission layer |
| D. | Ethylene | s. | root initiation |
| t. | Chloroplast development and chlorophyll synthesis |
A) A = p, B = r, C = q, D = s
B) A = r, B = s, C = p, U = t
C) A = s, B = p, C = t, D = q
D) A = s, B = t, C = r, D = q
Correct Answer: C
Solution :
Auxins (IAA, IBA, NAA and 2, 4-D) induce root initiation in stem cuttings. Gibberellin is used to breaking dormancy whereas ethylene induce fruit ripening and cytokinin delay in senescence.
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