Prohexadione-Calcium (P-Ca )

1.Prohexadione calcium (P-ca) is a New plant growth retarder, late inhibitor of erythrobin biosynthesis process, high efficiency and good safety.
2. Prohexadione calcium can Control vegetative growth and promote reproductive growth. Inhibits GA1 biosynthesis, does not inhibit GA4 synthesis that controls reproductive growth.
3. P-ca is Low toxicity, no residue, no adverse effects on the growth of the next crop, no impact on the environment.
4. Protect the existing GA4 activity and effectively prevent early crop senescence.
5. P-ca can make crops Have a certain ability to resist stress, control prosperity, increase production, and disease prevention.

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Product Detail

Product name: Prohexadione-Calcium (P-Ca )
CAS NO: 127277-53-6
Molecular formula: C10H10CaO5
Molecular weight: 250.3

Appearance is ocher powder, melting point>360℃, density 1.460 (g/cm3), vapor pressure: (20℃)1.33×10.3Pa, solubility in water (20℃) 174mg/L, light, heat and in aqueous solution Stable, stable under alkaline conditions.

Functions

1. New plant growth retarder, late inhibitor of erythrobin biosynthesis process, high efficiency and good safety.
2. Low toxicity, no residue, no adverse effects on the growth of the next crop, no impact on the environment.
3. Control vegetative growth and promote reproductive growth. Inhibits GA1 biosynthesis, does not inhibit GA4 synthesis that controls reproductive growth,
4. Protect the existing GA4 activity and effectively prevent early crop senescence.
5. Have a certain ability to resist stress, control prosperity, increase production, and disease prevention.

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Quality standard

Appearance: white powder crystal, no visible mechanical impurities and lumps.

Formulation: 95%TC, 5%AS, 10%WP, 15%WP, 25%WP

Test method: dissolve the sample in methanol, use methanol + acetonitrile + water = 35 + 20 + 45 as the mobile phase, use a stainless steel column with C18 as the filler, high-performance liquid color separation and determination of P-Ca in samples at a wavelength of 230nm.

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Mechanism and characteristics

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Parameters

Large differences in dosages used on different crop species and varieties.	Cultivation of social seedlings: seed soaking treatment with 30~100mg/L medicinal solution or spraying with 1~10mg/L medicinal solution at seedling stage.
	Inhibit vegetative growth: 150~500mg/L medicinal solution treatment (different dosages for different crops vary greatly).
	Fruit tree control tip: foliar application of 150~500mg/L.
	Lawn: Apply 25~55mg per square meter after treatment.
	Flowers: 10~50mg/L medicinal solution is applied or poured.