Free tool · CIB&RC major uses

✓ CIB&RC list up to 30 September 2026 · checked 24 October 2026

Plant growth regulators approved in India, by crop

Every plant growth regulator use in the official CIB&RC list: the crop, the purpose and timing, the dose, the water or method and the waiting period, for gibberellic acid, paclobutrazol, ethephon, mepiquat, NAA, triacontanol and more.

38registered products in the list

30crops, from grapes to rice

124crop uses

10kinds of growth regulator

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From the CIB&RC list of major uses, up to 30 September 2026, based on certificates issued. The list is for guidance, not for legal purposes: the approved label of each product is what counts.

No match. This list covers plant growth regulators only; insecticides, fungicides and herbicides have their own pages.

124 uses · 30 crops

Growth regulator uses, crop by crop

Grapes

17 uses · Ethephon, Forchlorfenuron, Gibberellic acid, Hydrogen cyanamide, Mepiquat and chlormequat, NAA

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	(a)To increase size & weight of berries. – Ist sprays at pruning time. – 2nd spray when flowering shoot appear⚠ As printed; 2 ml of a 4.5% SL in 49 litres is about 2 ppm, not 10 ppm.	10 ppm	–	2 ml in 49 ltrs.	–
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	(b)To control berry drop (spray on matured grape bunches) 10-15 days before harvesting.⚠ As printed; 20 ml of a 4.5% SL in 49 litres is about 18 ppm, not 100 ppm.	100 ppm	–	20 ml. in 49 Litres	–
Chlormequat Chloride 50% SL	1st spray: 3-5 leaf stage after April pruning	500 g a.i./ha	1000ml	1000 L	91
Chlormequat Chloride 50% SL	2nd Spray: 5-7 leaf stage after April Pruning	1000 g a.i./ha	2000 ml	1000 L	91
Chlormequat Chloride 50% SL	3rd Spray: 3-5 leaf stage after October Pruning	250 g a.i./ha	500ml	1000 L	91
Ethephon 39 % SLGrape	Defoliation for better flowering and fruit yieldPreparation: 2.5 ml in 1 lit of water	487.5-682.5 g	1250-1750	750	–
Forchlorfenuron 0.1% L (w/v)	Two dipping applications. 1st When size of berry is 3-4 mm diameter and 2nd When size of berry is 6-7 mm diameter,	2 ppm.	1 ltrs.	500	60 days
Forchlorfenuron 0.12% EC w/w	To enhance the fruit size in seedless grapes single directed spray on berries at 4-6 mm berry size	3 ppm	1.5 liter	500 liter/ha.	20
Gibberellic Acid Technical (90% w/w)	Two directed spray Ist at full bloom & 2nd at fruit set stages.	100 ppm	–	–	–
Gibberellic Acid Technical (90% w/w)Grape (Seedless)	Two blanket spray at Ist full bloom & 2nd at post bloom stage.	15-60 ppm	–	–	–
Gibberellic Acid 0.001% L	a) First spray 30-35 days after pruning b) Second during the match head stage⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml.	450-500	–
Gibberellic Acid 40% WSGGrape	Pre-Bloom Elongation⚠ As printed; 40% of 50 is 20, not 40.	40	50	500	–
Gibberellic Acid 40% WSGGrape	Fruit Setting Thinning⚠ As printed; 40% of 50 is 20, not 40.	40	50	500	–
Gibberellic Acid 40% WSGGrape	6-7 mm berry size-enlargement⚠ As printed; 40% of 50 is 20, not 40.	40	50	500	–
Hydrogen Cyanamide 50% SLImported	For breaking bud dormancy Single application as spray Just after pruning.	1-1.5%	2-3%	375-500	90-120 days
Hydrogen Cyanamide 50% SLIndigenous manufacture	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.	120 days
Hydrogen Cyanamide 49% AS	For breaking bud dormancy One directed spray, just after pruning.	1.0-1.5%	2-3%	50 ltrs.	110 days

Mango

14 uses · Ethephon, NAA, Paclobutrazol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	1st spray when tender fruits one of pea size. 2nd spray when fruits one of marble size (about 2 cm diameter)	20 ppm	–	2 ml in 4.5litre.	–
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	To control Mango malformation- Before fruit bud differentiations approx. 3 months before flowering	200 ppm	–	20 ml in 4.5 ltrs.	–
Ethephon 39 % SL	a) For breaking alternate bearing tendenciesPreparation: 5 ml in 10 lit of water	200 ppm	770-1025	1500-2000	–
Ethephon 39 % SL	b) For Flower induction in juvenile mangoPreparation: 26 ml in 10 lit of water	1000 ppm	3846-5128	1500-2000	–
Ethephon 39 % SL	c) Post-harvest treatment (For Uniform Ripening)Preparation: 13 ml in 10 lit of water	500 ppm	1923-2564	1500-2000	–
Ethephon 20% WP	Post-harvest Ripening	1.2	6 gm	NA	NA
Ethephon 15% WP	Post-harvest Ripening	100 ppm (for 10 kg fruit in 20 L Box)	6 gm	NA	NA
Paclobutrazol 23% w/w (25% w/v) SCImported from ZENECA Agrochemicals, Fernhurst, Haslemere, Surrey, UK	To reduce the inter node length of new shoots and earlier formation of terminal bud. Favourably, influence the fruit bud production, fruit colour and harvest yield 7-15 yrs old Application after the harvest of fruits (Any time from July to Oct)Note: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	–	15 ml. Per tree	Recommended quantity diluted in clean water of 5-10 lit. and applied in furrow 5 to 10 cm deep about 30 cm away from the trunk. Fill up with soil after application or apply as soil – collar drench.	–
Paclobutrazol 23% w/w (25% w/v) SCImported from ZENECA Agrochemicals, Fernhurst, Haslemere, Surrey, UK	To reduce the inter node length of new shoots and earlier formation of terminal bud. Favourably, influence the fruit bud production, fruit colour and harvest yield 16-25 yrs old Application after the harvest of fruits (Any time from July to Oct)Note: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	–	20 ml. Per tree.	Recommended quantity diluted in clean water of 5-10 lit. and applied in furrow 5 to 10 cm deep about 30 cm away from the trunk. Fill up with soil after application or apply as soil – collar drench.	–
Paclobutrazol 23% w/w (25% w/v) SCImported from ZENECA Agrochemicals, Fernhurst, Haslemere, Surrey, UK	To reduce the inter node length of new shoots and earlier formation of terminal bud. Favourably, influence the fruit bud production, fruit colour and harvest yield >25 yrs old Application after the harvest of fruits (Any time from July to Oct)Note: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	–	25-40 ml. Per tree	Recommended quantity diluted in clean water of 5-10 lit. and applied in furrow 5 to 10 cm deep about 30 cm away from the trunk. Fill up with soil after application or apply as soil – collar drench.	–
Paclobutrazol 23% SC (W/W) / (25% W/V)Imported from PGR International Pty. Ltd., 4 Dairy road, Werribee Vic. 3030 Australia	To reduce the inter node length of new shoots and earlier formation of terminal bud. increase fruit bud production, and improve fruit yield texture 16-25 yrs old Application after the harvest of fruits (Any time from July to Oct)Note: If the soil is sandy the rate of application be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in 1st year	4.0 gm per tree	16 ml. Per tree	Make a round furrow about 5 to 10 cms deep at least 30 cm away from the trunk. Mix the recommended dose with about 5-10 litres of clean water and apply to the furrow. Fill up with soil after application and irrigate once or twice a month subsequently	Waiting Period - NIL as the chemical is applied 8 months before harvest of fruits
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To reduce the inter node length of new shoots and earlier formation of terminal bud. Favourably, influence the fruit bud production, fruit colour and harvest yield 7-15 yrs old Application after the harvest of fruits (Any time from July to Oct)Note: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	3.45	15 ml per tree	Recommended quantity diluted in clean water of 5 litres and applied in furrow 5 to 10 cm deep about 30 cm away from the trunk. Fill up with soil after application or apply as soil – collar drench.	–
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To reduce the inter node length of new shoots and earlier formation of terminal bud. Favourably, influence the fruit bud production, fruit colour and harvest yield 16-25 yrs old Application after the harvest of fruits (Any time from July to Oct)Note: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	4.6	20 ml per tree	Recommended quantity diluted in clean water of 5 litres and applied in furrow 5 to 10 cm deep about 30 cm away from the trunk. Fill up with soil after application or apply as soil – collar drench.	–
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To reduce the inter node length of new shoots and earlier formation of terminal bud. Favourably, influence the fruit bud production, fruit colour and harvest yield >25 yrs old Application after the harvest of fruits (Any time from July to Oct)Note: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year⚠ As printed; 5.75-9.2 g a.i. is 25-40 ml of this SC (as in the imported product), not 30 ml.	5.75-9.2	30 ml per tree	Recommended quantity diluted in clean water of 5 litres and applied in furrow 5 to 10 cm deep about 30 cm away from the trunk. Fill up with soil after application or apply as soil – collar drench.	–

Cotton

12 uses · Gibberellic acid, Mepiquat and chlormequat, NAA, Other, Paclobutrazol, Triacontanol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	To prevent shedding of flower squares & bolls (3 sprays at 15 days interval from square formation stage	10-20 ppm	222-444 ml	1000 ltr.	–
Chlormequat Chloride 50% SLCotton (American)	Square formation of early flowering (one spray)	20-40 gm a.i/ha	40-80 ml/ha	High Volume 375-600 Low volume 125-187	–
Chlormequat Chloride 50% SLCotton (Deshi)	Square formation of early flowering (one spray)	75 a.i. gm/ha	150 ml/ha	High volume 375-600	–
Gibberellic Acid 0.001% L	a) First spray 40-45 DAP b) Second spray: At the time of ball formation⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml	450-500	–
Gibberellic Acid 0.186% SP	To improve fiber quality one spray at square formation or early flowering stage	142 ppm.	71 gm	450-500	–
Mepiquat chloride 5% AS	Single spray at flowering stage to control excessive vegetative growth and to increase crop yield in cotton	50-62.5 g	1.00-1.25 ltr	500-600	57
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To restrict vegetative growth, prevent shedding of squares/bolls & enhance yieldNote: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	34.50g a.i./ha	150ml/ha	500 L/ha	42
Sodium Para –Nitrophenolate 0.3% SL	Flower bud initiated stage and fruit set stage	0.5%	5 ml	800	16
Triacontanol 0.05% EC	To increase the yield Three sprays at 45, 65 and 85 days after planting	0.125 gm	0.25ltr	400-500	–
Triacontanol 0.05% w/w min. GR	To increase the yield Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.	12.5 gm	25 kg.	–	–
Triacontanol 0.1% EW	To increase the yield Three sprays at 45, 65 and 85 days after sowing	0.25 g	0.25 ltr.	400-500	–
Cyclanilide 2.10% w/w +Mepiquat Chloride 8.40% w/w SC	First spray should be applied at square formation stage or after 45-55 days of sowing. 2nd and 3rd spray should be applied at an interval of 15 days.	4.40 + 17.60 to 4.95 + 19.80 gm	200 - 225	500	21

Rice

10 uses · Gibberellic acid, Mepiquat and chlormequat, Other, Paclobutrazol, Triacontanol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% LPaddy	To increase the yield and quality of the crop produce Short duration varieties 20-25DAT Medium duration varieties 30-35 DAT Long duration varieties 40-45 DAT⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml	450-500	–
Gibberellic Acid 0.1% GR	Broadcast (Manual by hand with rubber gloves or through mechanical dispenser) at 15-20 days after transplanting	12.5-15 g	12.5-15.0 kg	–	76
Gibberellic Acid 40% WSG	20-25 Days After Transplanting	20-25	50-62.5	500	–
Gibberellic Acid 40% WSG	At Panicle emergence	20-25	50-62.5	500	–
Mepiquat chloride 5% AS	Sprayed at mid tillering stage. For optimum plant height with more no. of tillers per hill. To enhance panicle length for better quality grain and yield in rice.	62.5	1.25	500	39
Nitrobenzene 15% GRTransplanted Rice	Plant growth regulator	750g	5 Kg	Mix 5 kg of the product/ha with sand or compost or straight fertilizers and broadcast uniformly on the soil	Zero day
Triacontanol 0.05% EC	Three sprays at 25, 45 and 65 days after transplanting	0.125 gm	0.25ltr	400-500	–
Triacontanol 0.05% w/w min. GR	Broadcast & mix the desired quantity of granules in soil 2-3 days before transplanting.	12.5 gm	25 kg.	–	–
Triacontanol 0.1% EW	Three sprays at 25, 45 and 65 days after transplanting	0.25 g	0.25 ltr.	400-500	–
Paclobutrazol0.4%+ Propiconazole 0.2% GR	Rice blast/ PGR 25 DAYS AFTER PLANTING⚠ As printed (250 g); 12.5 kg of a 0.6% GR holds about 75 g a.i.	250g	12.5 Kg	–	–

Apple

9 uses · 1-MCP, Gibberellic acid, Hydrogen cyanamide, Other, Paclobutrazol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic acid 0.45% SL	Time of application 1. Pink bud stage 2. Pea nut Stage 3. Walnut Stage	7.2 ppm	2ml/Liter	8-12 L (As per plant canopy)	24 hours
Hydrogen Cyanamide 49% AS	For early initiation of bud sprouting and improving the fruit quality and enhance the yield of Apple. One-time single application four weeks prior to expected bloom	1.00%	2.00%	Mix 2000 ml of the product per 100 liters of water	188 days
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
1-methylcyclopropene 0.014% VP	-⚠ As printed (0.0875 g); 625 mg of a 0.014% product holds 0.0875 mg.	0.0875 g (2000 ppb)	625 mg (/10 kg apple)	20 L	2 days
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To induce flowering and enhance yieldNote: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	2.3 g a.i./tree	10 ml/tree	5L Recommended as soil drench (single application) Treatment should be drenched in soil in circular area 25 cm away from tree stem. (Dormant stage)	155
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To induce flowering and enhance yieldNote: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	0.46 g a.i./ Litre water (460 ppm)	2 ml/Litre (2000 ppm)	3L Recommended as foliar spray (single application) with the help of high volume knap sack sprayer ( at green tip stage)	134
Prohexadione-Ca 10% WG	Two split applications: 1st application: at 3-5 leaves/ shoot	125	50 gm per 100 liter	2500	94
Prohexadione-Ca 10% WG	Two split applications: 2nd application 4 weeks after 1st application	150	60 gm per 100 liter	2500	94
Gibberellic acid 1.8% + 6-Benzyladenine 1.8% L	To increase the yield through enhancement of fruit size and weight, to improve the shape and development of prominent calyx lobes (typiness). To increase lateral bud break and shoot growth (branching) & improving branch angle of nursery stock young apple trees⚠ As printed (“840-1680 ppm”); the product dose is probably in ml.	30-60 ppm	840-1680 ppm	1000	–

Tomato

9 uses · Ethephon, Gibberellic acid, NAA, Other, Triacontanol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	At the time of flowering two spray.	45 ppm	–	–	–
Ethephon 39 % SL	Post-harvest treatment (for Uniform Ripening)Preparation: 65 ml in 10 lit of water	2500 ppm	–	–	–
Gibberellic Acid 0.001% LTomato / Potato / Cabbage / Cauliflower	a) First spray 45 DAS b) Second spray 65 DAS⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml.	450-500	–
Gibberellic acid 20% Tablet	To increase overall growth, vigor, yield and quality of the crop produce	5 g	25	375 L	7 days
Nitrobenzene 20% w/w EW	Plant Growth Regulator	200 g	1000	500	Zero days
Sodium Para –Nitrophenolate 0.3% SL	Flowering and fruit stages	0.5%	4 ml	200	7
Triacontanol 0.05% EC	Three sprays at 25, 45 and 65 days after planting	0.125 gm	0.25 ltr	400-500	–
Triacontanol 0.05% w/w min. GR	Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.	12.5 gm	25 kg.	–	–
Triacontanol 0.1% EW	Three sprays at 25, 45 and 65 days after transplanting	0.25 g	0.25 ltr.	400-500	–

Potato

7 uses · Chlorpropham, Gibberellic acid, Mepiquat and chlormequat, Triacontanol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Chlormequat Chloride 50% SL	Dipping of cut pieces for 10 minutes	100 ppm	200ppm	2.0ml/ 10 L water	–
Chlorpropham 50% HN	Antisprouting agent for stocked potatoes under cold storage condition Temp= 10±2°C R.H.= 90±5%	18-20 gm/MT	36-40 ml/MT	Formulation is to be applied as such with fogging applicator	20
Chlorpropham 55.37% w/w (624 g/l) HN	Anti-sprouting agent for stocked potatoes under cold storage condition Temp= 10±2°C R.H.= 90±5%	18-20 gm/MT	29-32 ml/MT	Formulation is to be applied as such with fogging applicator	20
Chlorpropham 300 g/l EC	Anti-sprouting agent for potatoes in heap storage conditions	18	60	1 L	Not applicable
Gibberellic Acid 0.001% LTomato / Potato / Cabbage / Cauliflower	a) First spray 45 DAS b) Second spray 65 DAS⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml.	450-500	–
Mepiquat chloride 5% AS	One spray 45 DAP To restrict the excessive vegetative growth of potato and increasing its yield	62.5-75 g	1.25-1.50 ltr	500-600	60-90 days
Triacontanol 0.05% EC	Two sprays at 30 and 45 days after planting	0.250 gm	0.50 ltr	500-600	–

Groundnut

6 uses · Gibberellic acid, Mepiquat and chlormequat, Paclobutrazol, Triacontanol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% L	a) First spray at flowering (30-35 AS) b) Second spray at the time of flowering⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml	450-500	–
Mepiquat chloride 5% AS	Single spray at flowering stage to control excessive vegetative growth and to increase crop yield in groundnut	50-62.5 g	1.00-1.25 ltr	500	60
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To enhance yield by restricting vegetative growthNote: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year	28.75 g a.i./ha	125 ml/ha	500 L/ha	70
Triacontanol 0.05% EC	Three sprays at 25, 45 and 65 days after planting	0.125 gm	0.25 ltr	400-500	–
Triacontanol 0.05% w/w min. GR	Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.	12.5 gm	25 kg.	–	–
Triacontanol 0.1% EW	Three sprays at 25, 45 and 65 days after sowing	0.25 g	0.25 ltr.	400-500	–

Brinjal

5 uses · Gibberellic acid, Mepiquat and chlormequat

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Chlormequat Chloride 50% SL	Seed soaking for 24 hours (before sowing)	50 ppm	100ppm	1ml/ 10L water	–
Gibberellic Acid Technical (90% w/w)	a) seed treatment (dipping)	10 ppm	–	–	–
Gibberellic Acid Technical (90% w/w)	b) When 4 weeks old - weekly spray	50 ppm	–	–	–
Gibberellic Acid 0.001% LBrinjal, Bhindi	a) First spray 34 DAP b) Second spray 70 DAP c)Third spray 105 DAP⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.045 gm	450 ml.	450-500	–
Mepiquat chloride 5% AS	Single spray at flowering stage to control excessive vegetative growth and to increase crop yield in brinjal	62.5 g	1.25 ltr	500	7

Chilli

4 uses · NAA, Triacontanol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)Chillies	1st spray during flowering & 2nd spray 20 -30 days later.	10 ppm	–	–	–
Triacontanol 0.05% EC	Three sprays at 25, 45 and 65 days after planting	0.125 gm	0.25ltr	400-500	–
Triacontanol 0.05% w/w min. GR	Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.	12.5 gm	25 kg.	–	–
Triacontanol 0.1% EW	Three sprays at 25, 45 and 65 days after transplanting	0.25 g	0.25 ltr.	400-500	–

Pineapple

4 uses · Ethephon, NAA

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	(a) To induce flowering and uniform growth	10 ppm (In dry weather half strength solution i.e. 5 ppm may be used)	–	1 ml in 4.5 Litres (pour 30-50 ml of solution in to the head of each plant)	–
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	(b) To increase fruit size.⚠ As printed (199 ppm); 10 ml of a 4.5% SL in 4.5 litres is about 100 ppm.	199 ppm	–	10 ml in 4.5 Litres (spray to wet the whole plant)	–
Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)	To delay maturity - Two weeks before harvest.	100 ppm	–	10 ml in 4.5 Litres (Wet the whole fruit 2 weeks before harvest)	–
Ethephon 39 % SL	For flower inductionPreparation: 2.5 ml in 10 lit of water	100 ppm	385-513	1500-2000	–

Wheat

3 uses · Gibberellic acid, Mepiquat and chlormequat

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 40% WSG	20-25 Days After sowing	10-15	25-37.5	500	–
Gibberellic Acid 40% WSG	10% ear emergence	10-15	25-37.5	500	–
Mepiquat chloride 5% AS	Sprayed at vegetative growth stage/ majority of tillers. For more number of tillers and increase in panicle length. For better quality grains and improved grain and straw yield.	62.5	1.25	500	47

Banana

2 uses · Ethephon, Gibberellic acid

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Ethephon 15% WP	Post-harvest Ripening	100 ppm (for 10 kg fruit in 20 L Box)	6 gm	NA	NA
Gibberellic Acid 0.001% L	a) First spray 3rd month b) Second spray 5th month Third spray at the time of fruit formation⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.027 gm	270 ml.	450-500	–

Coffee

2 uses · Ethephon

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Ethephon 39 % SLCoffee (Arabica)	For uniform ripening of berries, One spray at fly pricking stage, when 10-15% berries are ripened.Preparation: 5 ml in 10 lit of water	192 ppm	738-985	1500-2000	–
Ethephon 39 % SLCoffee (Robusta)	For uniform ripening of berries, one spray at fly pricking stage, when 10-15% berries are ripened.Preparation: 2.5 ml in 10 lit of water⚠ As printed (215-287); 96 ppm in 1500-2000 litres needs about 369-492 ml of a 39% SL.	96 ppm	215-287	1500-2000	–

Okra

2 uses · Gibberellic acid, Mepiquat and chlormequat

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% LBrinjal, Bhindi	a) First spray 34 DAP b) Second spray 70 DAP c)Third spray 105 DAP⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.045 gm	450 ml.	450-500	–
Mepiquat chloride 5% AS	Spray at initiation of flowering. To increase number of fruits and fruit weight. For better quality of fruits and yield.	62.5	1.25	500	7

Onion

2 uses · Gibberellic acid, Mepiquat and chlormequat

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% L	25-30 days after planting⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 g	180	450-500	–
Mepiquat chloride 5% AS	Single spray at flowering stage to control excessive vegetative growth and to increase crop yield in onion	62.5 g	1.25 ltr	500	48 (bulb) 7 (green leaves)

Pigeon pea

2 uses · Forchlorfenuron, Paclobutrazol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Forchlorfenuron 0.12% EC w/wPigeon pea (Tur)	Single directed spray at the time of 100% flowering	2.5ppm	1.125 Litres/ha	Spray Volume- 450 l/ha. Mix 250 ml of Sitofex in 100 l water	30 days
Paclobutrazol 40% SC	Plant growth regulator	30	75	500	48

Pomegranate

2 uses · Ethephon, Paclobutrazol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Ethephon 39 % SL	Defoliation for better flowering and fruit yieldPreparation: 135 days (2-2.5 ml/lit water)	390-487.5 g	1000-1250 ml	500	–
Paclobutrazol 23% SC (w/w) / (25% w/v)Indigenous manufacture	To induce flowering and enhance yieldNote: If the soil is sandy the rate of application may be reduced to 75 % of the recommended. For repeat use the rate of application can be 50 to 75 % of the rate used in the 1st year⚠ As printed (per ha); 3.0 ml of a 23% SC holds about 0.69 g a.i., so this is per tree.	0.69 g a.i./ha	3.0 ml/tree	2L Recommended as soil drench (single application) ring form furrow to be made at a depth of 5-7 cm around plants and soil drenching to be done in active root zone and covered with soil.	83

Rubber

2 uses · Ethephon

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Ethephon 10% Paste	For renewed bark 4 times bark swabbing. During March, August, September & November below the tapping panel after 4 cm scrap of the bark /above the tapping panel/on the tapping cut after removing the lace.	10%	50 ml. formulation per tree directly used without dilution.	–	–
Ethephon 39 % SL	Yielding rubber latexPreparation: 26 ml in 10 lit of water	1000 ppm	–	–	–

Soybean

2 uses · Mepiquat and chlormequat, Paclobutrazol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Mepiquat chloride 5% AS	Single spray at flowering stage to control excessive vegetative growth and to increase crop yield in soybean	62.5 g	1.25 ltr	500	54
Paclobutrazol 40% SC	Plant growth regulator	30	75	500	56

Sugarcane

2 uses · Gibberellic acid, Hydrogen cyanamide

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% LSugarcane (Planted crops)	a) First spray 40-45 DAP b) Second spray 70-80 DAS⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml	450-500	–
Hydrogen Cyanamide 49% AS	Dipping of setts	0.50	1.00%	Mix 1000 ml of the product per 100 litres of water	319 days

Tea

2 uses · Gibberellic acid, Triacontanol

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% L	Five spray at monthly interval⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	–	270ml	450-500	–
Triacontanol 0.1% EW	Three sprays: 1st spray on mature plants, 2nd spray one month after 1st spray, 3rd spray one month after 2nd spray	0.25 g	0.25 ltr	400-500	–

Cabbage

1 use · Gibberellic acid

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% LTomato / Potato / Cabbage / Cauliflower	a) First spray 45 DAS b) Second spray 65 DAS⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml.	450-500	–

Cauliflower

1 use · Gibberellic acid

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% LTomato / Potato / Cabbage / Cauliflower	a) First spray 45 DAS b) Second spray 65 DAS⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.018 gm	180 ml.	450-500	–

Cherry

1 use · Gibberellic acid

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid Technical (90% w/w)Sweet cherry	When more than 60% buds opened fully.	40-80 ppm	–	–	–

Chickpea

1 use · Mepiquat and chlormequat

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Mepiquat chloride 5% AS	Single spray at flowering stage to control excessive vegetative growth and to increase crop yield in chickpea	62.5 g	1.25 ltr	500	56

Citrus

1 use · Gibberellic acid

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
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	500-1000 ppm	–	–	–

Cumin

1 use · Mepiquat and chlormequat

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Mepiquat chloride 5% AS	Sprayed at vegetative growth stage. To reduce plant height and increase the no. of branches. For better quality grains and yield.	62.5	1.25	500	45

Maize

1 use · Gibberellic acid

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 40% WSG	Knee high stage (25-30 DAS)	20	50	500	–

Mulberry

1 use · Gibberellic acid

Product (as registered)	Purpose and timing	a.i. dose	Product dose	Water or method	Waiting period
Gibberellic Acid 0.001% L	First spray: 15-20 days after harvest⚠ As printed; the a.i. figures are 10 times what the product dose holds at 0.001% (180 ml holds 0.0018 g).	0.045	450	450-500	–

Doses as listed: some per hectare, some per tree, per litre of water, per tonne of stored potatoes or as a concentration (ppm or %). Products sold in India under these names may also be registered for other uses; read the label. Waiting period = days between the last application and harvest; “–” means none given.

Questions

Plant growth regulators: short answers

Which plant growth regulators are registered in India?

The CIB&RC list of major uses (up to 30 September 2026) gives 38 plant growth regulator products: gibberellic acid, paclobutrazol, ethephon, mepiquat chloride and chlormequat chloride, triacontanol, NAA, forchlorfenuron, hydrogen cyanamide, chlorpropham, 1-methylcyclopropene and a few others, with uses on 30 crops.

Which growth regulators are registered for mango?

For mango the list gives ethephon, NAA, paclobutrazol: paclobutrazol as a soil application after harvest to bring regular flowering, ethephon for flowering and ripening, and NAA against fruit drop and malformation. Doses by tree age are in the mango table above.

Is paclobutrazol approved in India, and how is it applied on mango?

Yes. The list has 5 paclobutrazol products. On mango it is applied once after harvest (July to October), diluted in 5 to 10 litres of water in a furrow 5 to 10 cm deep about 30 cm from the trunk, at a dose that rises with the age of the tree; on sandy soil the list says the rate may be cut to 75%.

Which products are registered for ripening fruit?

Ethephon (39% SL, 20% WP and 15% WP) is registered for post-harvest ripening of mango, banana and tomato, and for uniform ripening of coffee berries. 1-methylcyclopropene does the opposite: it slows ripening of stored apples.

Which growth regulators control excess vegetative growth in cotton?

Mepiquat chloride, chlormequat chloride, cyclanilide + mepiquat chloride and paclobutrazol are registered for cotton; NAA is registered against shedding of squares and bolls. Doses are in the cotton table above.

Is the CIB&RC major uses list legally binding?

No. The list itself says it is compiled from available information for guidance, not for legal purposes. What binds is each product’s certificate of registration with its approved label and leaflet; use a product only on the crops and for the purposes on its label.

Source: Central Insecticides Board and Registration Committee, Directorate of Plant Protection, Quarantine and Storage: Major uses of pesticides (registered under the Insecticides Act, 1968), Plant Growth Regulators (PGR), up to 30.09.2026, based on certificates issued. The list says: “The document has been compiled on the basis of available information for guidance and not for legal purposes.” Product names and values as listed; where a figure does not add up, it is flagged against the row. NanoKheti is not a government body. Also from NanoKheti: Insecticides by crop · Fungicides by crop · Herbicides by crop · Banned and restricted pesticides · FCO biostimulant list.