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.
Package: 1kg/Alum Foil Bag, 25kg/drum or customized packing.
plant growth retardant effective prohexadione calcium price 20%wdg prohexadione calcium
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
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Appearance light-yellow powder Density 1.435 Melting Point >360 C Vapor Pressure 1.335X10-5 Pa(20C) Solubility in water 174.2 mg/L(20C) Solubility in organic solvents
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
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