Gibberellic Acid (GA3) Plant Growth Regulator
CAS Number: 77-06-5
Gibberellic acid (GA3) is a naturally occurring plant hormone from the gibberellin class, used as a plant growth regulator to promote stem elongation, seed germination, fruit setting, and parthenocarpic fruit development. It is widely applied in viticulture to increase berry size and elongate grape clusters, in citrus production to delay rind aging, and in cereal seed production to break dormancy. GA3 is produced by microbial fermentation and is registered for food crops in most global markets.
Technical Specifications
| appearance | White crystalline powder |
| solubility | Slightly soluble in water; soluble in ethanol |
| moisture (%) | ≤0.5 |
| melting point (°C) | 233–235 (decomp.) |
| active ingredient (%) | ≥90 |
| specific rotation [α]D20 | -90° to -100° |
Applications
- Viticulture berry size enlargement and cluster elongation
- Citrus fruit rind senescence delay and greening
- Cereal and grass seed dormancy breaking
- Parthenocarpic fruit set in tomato and cucumber
- Malting barley enzyme activity enhancement
Key Features
- Naturally occurring plant hormone with established crop uses globally
- Fermentation-derived, suitable for organic-approved formulations
- Registered for food crops with established MRLs in major markets
- Precise dose-response enables customized growth outcomes
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CAS Number
77-06-5
Category
Agricultural / Crop ChemicalsAvailability
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