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植物器官在其生长发育过程中常常会自然脱落,这是一种正常的生理反匮现象。棉花蕾铃脱落率一般为60—70%,严重时高达80%。蕾铃脱落是生产实践中长期未能解决的一个大问题,它影响产量和品质的进一步提高。关于棉花营铃脱落的机理,国内外许多学者做过大量研究,提出了这样或那样的学说和假说。控制器官脱落的激素观念是1933年由Laibach 首先提出来的。后来由La Rue 的具体实验所证实。近年来,控制蕾铃脱落的激素观念已有很大进展,本文试图就这一问题进行初步讨论。一、生长素与蕾铃脱落许德威等运用生物鉴定法比较受精幼铃
Plant organs in their growth and development process will often fall off naturally, this is a normal physiological phenomenon. Cotton bud loss rate is generally 60-70%, severe up to 80%. Falling out of the buds is a big problem that has not been solved in production for a long time. It affects the further improvement of yield and quality. As for the mechanism of cotton bells falling off, many scholars at home and abroad have done a lot of research and put forward one or the other theories and hypotheses. The concept of hormonal control of organ exfoliation was first proposed by Laibach in 1933. Later confirmed by La Rue’s specific experiment. In recent years, there has been great progress in the concept of hormones controlling the shedding of buds. This paper attempts to discuss this issue tentatively. First, the growth hormone and buds fall off Xu Dewei and other bioassays to compare fertilized young bell