| 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) |
| Ethephon 39 % SL | Pine apple | For flower induction | 100 ppm | 385-513 | 1500-2000 | 13 ml in 10 lit of water |
| Alpha Naphthyl Acetic Acid 4.5% SL (Na salt) | Pineapple | (a)To induce flowering and uniform growth (b)To increase fruit size. I To delay maturity – Two weeks before harvest. | 10ppm (In dry weather half strength solution i.e. 5 ppm may be used) 199ppm 100ppm | – – – | 1 ml in 4.5 ltrs (pour 30-50 ml of solution in to the head of each plant) 10 ml in 4.5 ltrs. (spray to wet the whole plant) 10 ml in 4.5 ltrs.(Wet the whole fruit 2 weeks before harvest.) | – – – |
