Major use of plant-growth regulators in India with crop-wise label claims Plant Growth Regulators: Crop-wise Label Claims PGR Name 1-methylcyclopropene 0.014% VP1-Methylcyclopropene 3.3% VP (Vapour Releasing Product)Alpha Naphthyl Acetic Acid 4.5% SL (Na salt)Chlormequat Chloride 50% SLChlorpropham 300 g/l ECChlorpropham 50% HNChlorpropham 55.37% w/w (624 g/l) HNCyclanilide 2.10% w/w + Mepiquat Chloride 8.40% w/w SCEthephon 10% PasteEthephon 39 % SLForchlorfenuron 0.1% L (w/v)Forchlorfenuron 0.12% EC w/wGibberellic Acid 0.001% LGibberellic Acid 0.1% GRGibberellic Acid 0.186% SPGibberellic acid 1.8% + 6-Benzyladenine 1.8% LGibberellic Acid 40% WSGGibberellic Acid Technical (90% w/w)Hydrogen Cyanamide 49% ASHydrogen Cyanamide 50% SL (Import)Hydrogen Cyanamide 50% SL (Indigenous manufacture)Mepiquat chloride 5% ASNitrobenzene 20% w/w EWPaclobutrazol 23% SC (W/W) / (25% W/V) Paclobutrazol 23% SC (w/w) / (25% w/v) (Indigenous manufacture)Paclobutrazol 23% w/w (25% w/v) SC (Import Source:- ZENECA Agrochemicals, Fernhurst, Haslemere, Surrey, UK)Paclobutrazol 40% SCProhexadione-Ca 10% WGSodium Para ? Nitrophenolate 0.3% SLTriacontanol 0.05% ECTriacontanol 0.05% w/w min. GRTriacontanol 0.1% EW Target Crop AppleApple fruit (Under ambient and cold condition)BananaBrinjalBrinjal, BhindiChickpeaChilliChilliesCoffee (Arabica)Coffee (Robusta)CottonCotton (American)Cotton (Deshi)Grape (Seedless)Grape fruitGrapesGroundnutMaizeMangoMulberryOnionPaddyPigeon PeaPigeon pea (Tur)PineapplePomegranatePotatoRiceRubberSoybeanSugarcaneSugarcane (Planted crops)Sweet cherryTeaTomatoTomato / Potato / Cabbage / CauliflowerWheat Application Time / Purpose (a) To induce flowering and uniform growth(a)To increase size & weight of berries. ? Ist sprays at pruning time. ? 2nd spray when flowering shoot appear(b) To increase fruit size.(b)To control berry drop (spray on matured grape bunches) 10-15 days before harvesting.-1st spray during flowering & 2nd spray 20 -30 days later.1st spray when tender fruits one of pea size. 2nd spray when fruits one of marble size (about 2 cm diameter)1st spray: 3-5 leaf stage after April pruning20-25 Days After sowing - 10% ear emergence20-25 Days After Transplanting2nd Spray: 5-7 leaf stage after April Pruning3rd Spray: 3-5 leaf stage after October Pruninga) For breaking alternate bearing tendenciesa) 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 spraya) Seed treatment (dipping) Anti-sprouting agent for potatoes in heap storage conditionsAnti-sprouting agent for stocked potatoes under cold storage condition Temp= 10?2?C R.H.= 90?5%Antisprouting agent for stocked potatoes under cold storage condition Temp= 10+2 Degree C; R.H.= 90+5%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.At Panicle emergenceAt the time of flowering two spray.b) For Flower induction in juvenile mangob) When 4 weeks old - weekly sprayBroadcast (Manual by hand with rubber gloves or through mechanical dispenser) at 15-20 days after transplantingc) Post-harvest treatment (For Uniform Ripening)Defoliation for better flowering and fruit yieldDipping of cut pieces for 10 minutesDipping of settsFirst 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.Flower bud initiated stage and fruit set stageFlowering and fruit stagesFor 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 bloomFor breaking bud dormancy One directed spray, just after pruning.For breaking bud dormancy Single - application as spray Just after pruning.For breaking dormancy of fruiting buds - Just after pruning, single application by swabbing.For flower inductionFor 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.For uniform ripening of berries, One spray at fly pricking stage, when 10- 15% berries are ripened.Knee high stage (25-30 DAS)One spray 45 DAP - To restrict the excessive vegetative growth of potato and increasing its yieldPlant Growth RegulatorPost-harvest treatment (for Uniform Ripening)Pre-Bloom Elongation, Fruit Setting thinning, 6-7 mm berry size- enlargementSeed soaking for 24 hours (before sowing)Single directed spray at the time of 100% floweringSingle spray at flowering stage to control excessive vegetative growth and to increase crop yield in brinjalSingle spray at flowering stage to control excessive vegetative growth and to increase crop yield in chickpeaSingle spray at flowering stage to control excessive vegetative growth and to increase crop yield in cottonSingle spray at flowering stage to control excessive vegetative growth and to increase crop yield in groundnutSingle spray at flowering stage to control excessive vegetative growth and to increase crop yield in onionSingle spray at flowering stage to control excessive vegetative growth and to increase crop yield in soybeanSquare formation of early flowering (one spray)Three sprays at 25, 45 and 65 days after plantingThree sprays at 25, 45 and 65 days after transplantingTo restrict vegetative growth, prevent shedding of squares/bolls & enhance yieldTo delay maturity - Two weeks before harvest.To enhance the fruit size in seedless grapes single directed spray on berries at 4-6 mm berry sizeTo enhance yield by restricting vegetative growthTo improve fiber quality one spray at square formation or early flowering stageTo increase the yield and quality of the crop produce. - a) First spray 45 DAS, b) Second spray 65 DASTo increase the yield and quality of the crop produce. - a) First spray 30-35 days after pruning, b) Second during the match head stageTo increase the yield and quality of the crop produce. - a) First spray 34 DAP, b) Second spray 70 DAP, c)Third spray 105 DAPTo increase the yield and quality of the crop produce. - First spray: 15-20 days after harvestTo increase the yield and quality of the crop produce. - Five spray at monthly intervalTo increase the yield and quality of the crop produce. - 25-30 days after plantingTo increase the yield and quality of the crop produce. - a) First spray 3rd month, b) Second spray 5th month Third spray at the time of fruit formationTo increase the yield and quality of the crop produce. - a) First spray at flowering (30-35 AS), b) Second spray at the time of floweringTo increase the yield and quality of the crop produce. a) First spray 40-45 DAP, b) Second spray 70-80 DASTo 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 DATTo increase the yield and quality of the crop produce. - a) First spray 40-45 DA, b) Second spray: At the time of ball formationTo increase the yield - Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.To increase the yield - Three sprays at 45, 65 and 85 days after sowingTo increase the yield - Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.To increase the yield - Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.To increase the yield - Broadcast & mix the desired quantity of granules in soil 2-3 days before sowing.To increase the yield - Broadcast & mix the desired quantity of granules in soil 2-3 days before transplanting.To increase the yield - Three sprays at 25, 45 and 65 days after sowingTo increase the yield - Three sprays at 25, 45 and 65 days after transplantingTo increase the yield - Three sprays at 45, 65 and 85 days after plantingTo increase the yield - Three sprays: 1st spray on mature plants, 2nd spray one month after 1st spray, 3rd spray one month after 2nd sprayTo 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 applTo induce flowering and enhance yieldTo prevent shedding of flower squares & bolls (3 sprays at 15 days interval from square formation stageTo 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. A) 7-15 yrs old B) 16-25 yrs old C) >25 yrs old Application after the harvest of fruits 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 16-25 yrs old >25 yrs old Application after the harvest of fruits (AnTo 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)To?control?Mango malformation - Before fruit bud differentiations approx. 3 months before floweringTwo directed spray Ist at full bloom & 2nd at fruit set stages.Two blanket spray at Ist full bloom & 2nd at post bloom stage.Two dipping applications. 1st When size of berry is 3-4 mm diameter and 2nd When size of berry is 6- 7 mm diameter,Two split applications: A) 1st application: at 3-5 leaves/ shoot B) 2nd application 4 weeks after 1st applicationTwo sprays at 30 and 45 days after plantingWhen more than 60% buds opened fully.Yielding rubber latex Filter PGR List Reset All
