Gibberellins Gibberellic acid 4+7 is a mixture of Gibberellic Acid (GA4) and Gibberellic Acid (GA7). Used as plant growth regulator on apple and pear, can improve the shape, prevent the resetting, improve the fruit setting, and anticipated the shoot sprouting.
Product name Gibberellic Acid GA4 7
CAS\t999-81-5
Property Molecular Formula: GA4: C19H24O5 GA7: C19H22O5
Molecular Weight: GA4: 332.39 GA7: 330.37
Proportion of GA4:GA7: 65:35
Appearance: white crystal powder
Melting point is between 198-202°C
Odor: Odorless
Introduction\tGibberellins Gibberellic acid 4+7 is a mixture of Gibberellic Acid (GA4) and Gibberellic Acid (GA7). Used as plant growth regulator on apple and pear, can improve the shape, prevent the resetting, improve the fruit setting, and anticipated the shoot sprouting.
Applications\t√ For apple, used to reduce resetting in apples, The roles are fruit thinning, changing fruit shape and size, increasing weight of single fruit, thickening skin and prolonging the storage period.
√ Increase the fruit set in pears, and increase the germination and yield of celery.
√ Application rate 20g/ha
Note\tDo not mix gibberellic acid with the alkaline solutions.
The Usage and Dosage of Gibberellic Acid GA4 7 Used on Different Crops
Crops Target Effect Dosage\tMethod
Apple tree\tImprove fruit quality\t75-112 g/hectare\tSpray 6-BA+GA4+7 3.6%EC
Litchi treeOrange tree\tRegulate growth and increase output\t800-1600 times solution\tSpray Brassinolide+GA4+7 0.4%
Pear Tree\tRegulate growth\t0.6-0.9 mg/young fruit\tScribble GA4+7 Paste