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多年来,我国油菜生产长期存在育苗中的“高脚苗”和越冬“冻害死苗”问题,严重地限制着油菜单产的提高。为此,我们从1987年起应用多效唑调控油菜生长发育,增产效果十分显著。一、多效唑对培育油菜壮苗的效应1.调控株型,促进生理活性增强据试验观察油菜三叶期喷多效唑,3～5天叶色变为浓绿,幼苗生长由半直立变为匍匐状态,随后逐渐变成株形
Over the years, the rapeseed production in our country has been suffering from the problem of “tall-footed seedling” in breeding and the problem of “freezing and killing dead seedling” in winter, which seriously limits the improvement of single-crop yield. For this reason, we have used paclobutrazol to control the growth and development of rapeseed since 1987, and the yield increase effect is very remarkable. First, the effect of paclobutrazol on nurturing strong seedlings of Rape 1. Regulation of plant type and promote the enhancement of physiological activity According to the experimental observation of the three-leaf stage spraying PP333, the leaf color turned green and the growth of seedling changed from semi-erect to creeping state , Then gradually become a plant shape