Prohexadione calcium 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.
Prohexadione calcium 15%WP(Wetting Powder form)
Prohexadione calcium 10%WDG, 15%WDG(Water Dispersible Granule)
Package: 1kg/Alum Foil Bag, 25kg/drum or customized packing
Plant Growth Hormones Inhibitors Products Prohexadione calcium 95%TC, 10%WDG, 15%WP Supplier
CAS NO.: 127277-53-6
Chemical Name: Prohexadione calcium
Calcium 3-oxido-5-oxo-4-propionylcyclohexanecarboxylate; VIVIFUL; 3,5-dioxo-4-(1-oxopropyl)cyclohexanecarboxylicacidion(1-)calciumcalciums
Physical and Chemical Properties:
Molecular Formula: C10H9O5Ca
Molecular Weight: 249.3
Appearance: light-yellow powder
Melting Point:>360 C
Vapor Pressure:1.335X10-5 Pa(20C)
Solubility in water:174.2 mg/L(20C)
Solubility in organic solvents: hardly soluble
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Prohexadione calcium Specs:
Prohexadione calcium 95%
Light brown to yellowwish powder
[Area normalization method]
[ External standard method]
Loss on drying
Prohexadione calcium TC can’t dissolve in water and most organic solvent, it can be made to WP, SC, WDG and so on. 15% WP, 25% 15% WDG and 10%wdg are common specs in market.
Prohexadione calcium.used as plant growth retardants hormones.
• Quick effect, within 3 days,
• Obiviously reduce plant height,
• Shorten internode height,
• Increase lodging capacity,
• Meanwhile it promote ear or fruit growth to increase yielding.
Prohexadione calcium plant growth hormones works through leaf treatment, so it is usually used foliar spraying. The dosage is different with different crops.
Rice, white and barley
Spraying the plant 5-10 days before elongation stage
Reduce the plant height, shorten internode height, improve lodging-resistance ability, also improve output
Spraying the plant 27-30 days before elongation stage
Improve lodging-resistance ability
Lawn(Bentgrass, Bermudagrass, ryegrass, carpet grass)
Spraying throughout the growing season
Reduce 50-90% of newly born height, reduce times to mow the lawn
Apples, pears, cherry, plum, hawthorn
Spraying the plant within 10 days after flowering time
Inhibit the growth of branches and leaves, fruits, enhance the nutrition, improve output,
1 month after sowing
Improve peanuts root vigor , chlorophyll content, and SOD, POD, CAT, Pr and MDA content
Spraying plant after blossom fall
Inhibit the growth of grape juice, increase nutrition of pigment and phenols content, improving the quality of grapes, and increase output
Spraying the plant in the middle stage
Inhibit nutrition and vegetative growth, lower plant height, improve quality and output
Sugar beet, cucumber, tomato
Spraying the plant leaves
Restrain spraying on the leaf and the stem of vegetative growth, pervious to light ventilation, improve quality and output
Chrysanthemum, cabbage, carnation
Spraying the plant leaves
Keep leaves dark green, Anti-Aging, have no adverse effects on leaves and flower