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1,1二甲基哌啶鎓氯化物(DMPC)是一种新的生长延缓剂。据已有的报道指出,它与矮壮素的作用相似,但又有其特点,在棉花上应用有控制徒长,减少脱落,使开花和收获期集中,增加前期花比重等效应。为探索这一药物在我国棉花生产中应用的前途,我们于1980年在北京进行了一组试验,观察在不同的生育阶段施用DMPC对棉花生育所产生的效应。现将初步结果简述如下。一、试验基本情况蕾、花期处理及药剂封顶试验,选用二个品种—早熟的黑山棉1号及偏晚熟的登恩
1,1 dimethylpiperidinium chloride (DMPC) is a new growth retardant. It has been reported that it has a similar function to chlormequat, but has its own characteristics. In cotton, it has the effect of controlling leggy growth, reducing shedding, concentrating flowering and harvesting periods, and increasing the proportion of early flowers. In order to explore the application of this drug in cotton production in China, we conducted a series of experiments in Beijing in 1980 to observe the effects of applying DMPC on cotton growth at different stages of growth. The preliminary results are summarized below. First, the basic conditions of the trial buds, flowering and drug capping test, the selection of two varieties - premature Heishan Cotton 1 and late late Dunn