Specification | Crops/Sites | Control Object | Dosage (dosage/hectare) |
---|---|---|---|
GA 3 20%SP | Grape | Regulate growth and increase production | The first dose: bud stage, dilute 2000-4000 times The second dose: rising stage, dilute1000-2000 times |
Product name | Gibberellin A3, GA3 |
General info | Function: Plant Growth Regulator |
Specification: 95%TC | |
CAS: 77-06-5 | |
High effective agrochemical | |
Toxicology | Oral Acute oral LD50 for rats and mice >15 000 mg/kg. Skin and eye Acute percutaneous LD50 for rats >2000 mg/kg. Non-irritating to skin and eyes. Inhalation No ill-effect on rats subjected to 400 mg/l for 2 h/d for 21 d. NOEL (90 d) for rats and dogs >1000 mg/kg diet (6 d/w). Toxicity class WHO (a.i.) U |
Applications | Mode of action Acts as a plant growth regulator on account of its physiological and morphological effects in extremely low concentrations. Translocated. Generally affects only the plant parts above the soil surface. Uses Has a variety of applications, e.g. to improve fruit setting of clementine and pears (especially William pears); to loosen and elongate clusters and increase berry size in grapes; to control fruit maturity by delaying development of the yellow color in lemons; to reduce rind stain and retard rind ageing in navel oranges; to counteract the effects of cherry yellows virus diseases in sour cherries; to produce uniform seedling growth in rice; to promote elongation of winter celery crop; to induce uniform bolting and increase seed production in lettuce for seed; to break dormancy and stimulate sprouting in seed potatoes; to extend the picking season by hastening maturity in artichokes; to increase the yield in forced rhubarb; to increase the malting quality of barley; to produce brighter-colored, firmer fruit, and to increase the size of sweet cherries; to increase yields and aid harvesting of hops; to reduce internal browning and increase yields of Italian prunes; to increase fruit set and yields of tangelos and tangerines; to improve fruit setting in blueberries; to advance flowering and increase the yield of strawberries; and also a variety of applications on ornamentals. Application rates up to 80 g/ per application, epending on desired effect. |