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Prohexadione-Calcium 15%WP Plant Growth Retardant Control Over Growth Safety

Prohexadione-Calcium 15%WP Plant Growth Retardant Control Over Growth Safety

  • High Light

    plant growth inhibitors and retardants


    growth retardant chemicals

  • M.F
  • CAS No.
  • Manufacturer Or Trader
  • Color
    Light Brown Or Yellow
  • Appearance
  • Melt Point
    285 Degree
  • HS Code
  • Place of Origin
    Henan Province, China
  • Brand Name
  • Certification
    ISO 9001 : 2008
  • Model Number
    Wettable Powder
  • Minimum Order Quantity
    25kg (samples can be offered)
  • Price
  • Packaging Details
    25 kgs / drum
  • Delivery Time
    7-14 working days
  • Payment Terms
  • Supply Ability
    300MT per Month

Prohexadione-Calcium 15%WP Plant Growth Retardant Control Over Growth Safety

CAS 127277-53-6 Prohexadione-calcium 15%WP Plant Growth Retardant Control OverGrowth


Technical Specification 
Technical Item Technical Data
EINECS No. 603-193-5
CAS No. 127277-53-6
Boiling Point 433℃ at 760 mmHg
Melting Point 360 ℃
M.F C10H10CaO5
Molecular Weight 462.461
Flash Point 229.8 ℃
Exact Mass 462.083893
PSA 97.33000
Appearance Light Brown or Yellow Powder
Vapor Pressure 1.53E -09 mmHg 
H.S. 29183000


Function Characteristics:
1.Inhibit the growth of internodes, improve lodging-resistance;
2.Protect gibberellin’s active already existing and prevent presenility of crops;
3.Efficient,safety,non-toxicity and residue free;


Prohexadione calcium TC can't dissolve in water and most organic solvent, it can be made to Water Powder(WP), Suspension Concentrate(SC), Water Dispersible Granule(WDG) and troche and so on. 10% WP, 25% SC, 15% WDG and 5% effervescent tablet(ET) are common in market. Prohexadione calcium works through leaf treatment, so it is usually used foliagespray. The dosage is different with different crops.

The Usage and Dosage of Prohexadione calcium Used on Different Crops

Crops Dosage Method of Use Effect
Rice 2-3 ppm foliagespray 5-10days beforejointing stage Reduce plant height obviously, shorteninternodes height
Sorghum 3-6 ppm 27-30days after jointing stage, foliagespray Controling the ultimate height
Peanut 2 ppm Between full-bloomingstage and pod setting stage , foliage spray Reduce peanut’splant height, prompt the number of under contacts, increase crop yield
Cotton  1.5-2 ppm Once between early florescence and full-bloomstage Inhibitthevegetativegrowth ofleavesandbranches, reduce plant height obviously, increase crop yield and promote quality.
Apple 2.25-4.5 ppm Spraying 3 times in fall flowering stage, fruit bearing stage and physiologicalfruit dropstage Inhibit the vegetative growth of leaves and branches, improve the quality of fruits
Grape 3-6 ppm Foliagespray after flower faded Inhibitthevegetativegrowth of grape, improve the pigment and phenolic content of grape juice, improve the quality of grape
Grass 3-20 ppm 3-5days after mowing, foliagespray Reduce the height of new plant by 50-90%, reduce the number of mowing.


Mechanism of Action:
It can stop synthesis of GA1 through control activity of GA19 and GA20 to control vegetative growth, and promote reproductive growth, improve activity of GA4 to increase yield and improve quality, improve the disease-resistance ability.


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