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九二○增效剂是浙江农业大学与衢县种子公司合作,于1987年研制的复合型激素产品。1988年在浙江、江苏、贵州、安徽、江西等12个省近5万亩制繁种田进行试用,一致反映增效剂能节约九二○用量,降低制种成本而达到穗透的作用,大部分试验点还表现出一定的增产作用。一、九二○增效剂在制繁种中的主要功效 1.节约九二○用量,降低生产成本目前,已研制试用的增效剂有Ⅰ型、Ⅱ型和Ⅲ型3种型号,这3种增效剂与九二○混合喷施不育系,能促进植株对赤霉酸的吸收,并与赤霉酸对细胞伸长的刺激呈协同效应。每亩制繁种田,用常规用量一半的九二○加100毫升的增效剂喷施后,其株高、抽穗速度和整齐度、穗透出率均可达到九二○原用量的处理水平。
September 20 synergist is Zhejiang Agricultural University and Qu County seed companies, in 1987 developed a compound hormone products. In 1988 in Zhejiang, Jiangsu, Guizhou, Anhui, Jiangxi and other nearly 12,000 acres of paddy farming trial, unanimously reflect the synergist can save 920 consumption, reduce the cost of seed production to achieve the role of ear penetration, large Some test points also showed a certain increase in yield. One, nine two ○ synergist in the main features of the system in the production of 1. The amount of 920 savings, reduce production costs At present, the trial has developed synergist Ⅰ type, Ⅱ and Ⅲ type three models, which Three kinds of synergists and nine hundred and twenty hybrid spraying sterile lines, can promote plant absorption of gibberellic acid, and gibberellic acid and cell elongation stimulation showed a synergistic effect. Planting per hectare of farmland, with the conventional amount of half of 1992 plus 100 ml of synergist spraying, the plant height, heading speed and uniformity, ear penetration rate can reach the level of treatment of 920 .