| Approved Plant Growth Regulator | Crop | Time of application / purpose | a.i. (ppm/gm/%) (Dosage per ha) | Formulation (ml/gm/L tr/kg/%) | Dilution In Water (Litres) / Preparation of solution | Waiting period / PHI between last applicatio n & harvest (days) |
| Paclobutrazol 23% SC (W/W) / (25% W/V) (Indigenous manufacture) | Apple | To induce flowering and enhance yield | 2.3 grm .a.i./tree | 10 ml/tree | 5L application) Treatment should be drenched in soil Recommended as soil drench (single in circular area 25 cm away from tree stem. (Dormant stage) | 155 |
| Paclobutrazol 23% SC (W/W) / (25% W/V) (Indigenous manufacture) | Apple | To induce flowering and enhance yield | 0.46 grm .a.i/L (460 ppm) | 2 ml/L (2000 ppm) | 3L application) with the help of high volume knap sack sprayer ( at green tip stage) Recommended as foliar spray (single | 134 |
| Prohexadione-Ca 10% WG | Apple | Two split applications: 1st application: at 3-5 leaves/ shoot | 125 | 50 gm per 100 liter | 2500 | 94 |
| Prohexadione-Ca 10% WG | Apple | Two split applications: 2nd application 4 weeks after 1st application | 150 | 60 gm per 100 liter | 2500 | 94 |
| 1-Methylcyclopropene 3.3% VP (Vapour Releasing Product) | Apple fruit (Under ambient and cold condition) | Applied as soon as possible after harvest, within a maximum of 7 days after harvest on fruits kept at ambient and cold temperature away from source of external ethylene. | 2.24 mg | 68 mg (1000 PPB) | – | 1 |
