|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 &
|Gibberellic Acid 40% WSG||Grape||Pre Bloom- Elongation Fruit Setting Thinning 6-7mm berry size-enlargement||40||50||500||–|
|Gibberellic Acid Technical (90% w/w)||Grape (Seedless)||Two blanket spray at Ist full bloom & 2nd at post bloom stage.||15-60ppm||–||–||–|
|Gibberellic Acid Technical (90% w/w)||Grape fruit||a) At full bloom (for fruit set )- single spray|
b) Ist week of May (For June fruit drop) –single spray
c) Ist week of October (For pre- harvest drop)-single spray
|Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)||Grapes||(a)To increase size & weight of berries. – Ist sprays at pruning|
time. – 2nd spray when flowering shoot appear
(b)To control berry drop (spray on matured grape bunches) 10- 15 days before harvesting.
|2 ml in 49 ltrs.|
20 ml. in 49 ltrs.
|Forchlorfenuron 0.1% L (w/v)||Grapes||Two dipping applications.|
1st When size of berry is 3-4 mm diameter and
2nd When size of berry is 6-7
|2ppm.||1 ltrs.||500||60 days|
|Forchlorfenuron 0.12% EC w/w||Grapes||To enhance the fruit size in seedless grapes single directed spray on berries at 4-6 mm|
|3 ppm||1.5 liter||500|
|Gibberellic Acid Technical (90% w/w)||Grapes||Two directed spray Ist at full bloom & 2nd at fruit set stages.||100ppm.||–||–||–|
|Gibberellic Acid 0.001%L||Grapes||a) First spray 30-35 days after pruning|
b) Second during the match head stage
|Hydrogen Cynamide 50% SL (Import)||Grapes||For breaking bud dormancy Single application as spray Just after pruning ,||1-1.5%||2-3%||375-500||90-120 days|
|Hydrogen Cynamide 50% SL (Indigenous manufacture)||Grapes||For breaking dormancy of fruiting buds|
Just after pruning, single application by swabbing.
|1.5%||1.5 ltrs.||Mix with 200-300|
ml. of product in 10 litres of water.
|Hydrogen Cyanamide 49% AS ( Import )||Grapes||For breaking bud dormancy One directed spray, just after pruning.||1.0-1.5%||2-3%||50 ltrs.||110 days|
|Chlormequat Chloride 50% SL||Grapes 1st spray:||3-5 leaf stage after April pruning|
5-7 leaf stage after April Pruning
|Chlormequat Chloride 50% SL||Grapes 2nd Spray:||3-5 leaf stage after October Pruning||1000 grm a.i./ha||2000 ml||1000L||91|
|Chlormequat Chloride 50% SL||Grapes 3rd Spray:||3-5 leaf stage after October Pruning||250 grm a.i./ha|