Description: White crystalline powder. Easily soluble in alcohols, acetone, ethyl acetate, sodium bicarbonate solution, and pH 6.2 phosphate buffer, but poorly soluble in water and ether. The aqueous solution is acidic, unstable, and easily loses effectiveness. Decomposes in the presence of alkali. Turns deep red when in contact with sulfuric acid.
Gibberellin is a plant growth regulator primarily used to promote the growth and development of crops, such as hasten maturity, increase yield, break dormancy of seeds, tubers, bulbs, and other organs, promote germination, tillering, and stem elongation, and enhance fruit setting rate.
It is particularly effective in addressing the issue of male sterility during the flowering period in hybrid rice seed production and is widely applied in cotton, grapes, potatoes, fruits, and vegetables.
Gibberellin GA3 is currently the most widely used plant growth regulator in agriculture, forestry, and horticulture . The physiological effects of gibberellin GA3 mainly include: changing the ratio of male and female flowers in certain crops, inducing parthenocarpy, accelerating fruit growth, and promoting fruit setting; breaking seed dormancy, hastening seed germination, accelerating stem elongation and the bolting of some crops; expanding leaf area, promoting the growth of young branches, facilitating the accumulation of metabolic products in the phloem, and activating the cambium; inhibiting maturation and aging, controlling the dormancy of lateral buds and the formation of tubers.
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