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“九二0”是一种植物激素,具有共同的赤霉烷结构。最初由水稻恶苗病赤霉菌的代谢产物中制得,目前已有几十种。其中活性最高的是赤霉酸(赤霉素 A)。纯品为白色结晶,难溶于水,能溶于乙醇、丙酮和酯类。作用是刺激植物生长,诱导开花或诱导花芽形成,打破休眠,形成无子果实,提高无核葡萄和某些蔬菜的产量。水稻制种在抽穗与开花期,用“九二0”喷施母本田,可增加粒数和结实,
“September 20” is a plant hormone with a common zearalen structure. Originally produced by the metabolites of rice bacterin, Fusarium, there are dozens of species present. The most active of which is gibberellic acid (gibberellin A). Pure white crystals, insoluble in water, soluble in ethanol, acetone and esters. Its role is to stimulate plant growth, induce flowering or induce flower bud formation, break dormancy, form offspring and increase yield of seedless grapes and certain vegetables. Seed production in the heading and flowering of rice, with “nine two 0” spraying the mother Honda, increase grain number and strong,