Which of the following is not a use of plant PGR ethylene?
| 1. | Initiation of flowering and synchronizing fruit set in pineapples. |
| 2. | Induction of flowering in mango. |
| 3. | Ethephon, most common source of ethylene, hastens fruit ripening in tomatoes. |
| 4. | Induction of parthenocarpy in tomatoes. |
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:-
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iv) | (ii) | (i) | (iii) |