Molecular formula: C19H22O6 Chemical family: Plant growth regulator Appearance: White or buff crystal powder Solubility: Easily dissolve in ethanol, acetone. Slightly dissolve in water (5g/L)or chloroform.
Stability: GA3 is high stable in acidic solution or litmusless solution. Rapidly break down in alkali solution. Rapidly decomposed by heat. Melting point: 223-225. Shelf life: 3 years under the cool, shade and dry storage conditions. Toxicity: Small rat can resist LD50 15000mg/kg.
Use: Break dormancy; Promote bourgeon; Improve quality and increase fruit production. Applicable to fruits and vegetables.
Cautions:
1. Use GA3 at a correct concentration, otherwise it may cause a negative effect on crops;
2. GA3 solution should be prepared and used when it is fresh;
3. GA3 is not compatible with alkaline materials;
4. It is better to spray GA3 solution before 10:00am or after 3:00pm. Re-spray if rain pours within 4 hours.