HANGZHOU DINGYAN CHEM CO.,LTD

Gibberellin is a kind of plant hormone with the alkane ring structure of gibberellin, which can promote plant growth. It exists in two forms: free type and bound type. In general, there are at least two or more kinds of gibberellins in plants, and different gibberellins can be transformed into each other. Leaves, buds, roots and young tissues of immature seeds are the main synthetic sites of gibberellin. It has physiological effects such as promoting stem elongation, inducing long-day plants to sprout and bloom under short-day conditions, breaking dormancy, promoting fruit setting and parthenogenesis, and cell division and differentiation. The most significant effect of gibberellin is to promote tissue growth and increase plant height, and the elongation effect on some genetic dwarf plants is especially obvious. Gibberellin can stimulate dormant seeds (green beans, lettuce, etc.) to germinate instead of red light. Induces the synthesis of α-amylase, which hydrolyzes starch into sugar. This specific reaction has been used for the biological identification of gibberellin and has been used in beer production. In the beer industry, GA3 is used to promote the germination of barley seeds, which has played a role in saving grain, reducing costs, shortening the production cycle and ensuring the quality of beer. Maize plants treated with high concentrations (500-1000ppm) of gibberellin can result in partial or complete male sterility. This is very beneficial for breeding maize inbred hybrids. Under low temperature and low light, gibberellin can break the dormancy of forage and is conducive to green fertilizer cultivation. In summer drought or low temperature, can promote the growth of sugarcane; At low temperature in early spring, it can promote early germination and rapid emergence of peas and beans. Gibberellin is commonly used in agriculture to increase the yield of seedless grapes, break the dormancy of potatoes, and promote the earing and increase the yield of hybrid seeds in hybrid rice seed production.