摘要
从营养枝的生长发育特点,保留营养枝对棉花生长发育、产量、纤维品质和早熟性的影响以及增产机理方面,对棉花营养枝利用的研究进展进行了综述。保留营养枝的棉花,根系生长速率提高,活力增强;光合面积扩大;叶绿素含量提高;现蕾、开花和结铃强度显著提高;结铃期营养条件改善;果枝铃减少,铃重降低,但营养枝结铃数量可以弥补果枝结铃数量损失,单株总铃数增加,保留营养枝对产量有补偿作用;纤维品质变化不显著;对延缓衰老作用不显著。在配套措施下,利用营养枝实现简化整枝是可行的。
The research progress on application of vegetative shoots of cotton was summarized including the growth and development characters of vegetative shoots, the effects of vegetative shoots on the growth and development, yield, fiber quality, early maturity and yield-increasing mechanism. Retaining vegetative shoots could increase the root growth rate and vigor, extend the photosynthesis area, increase the leaf chlorophyll content, remarkably improve the budding, flowering and boll setting, improve the nutritional conditions at boll setting stage, decrease the numbers and weight of boll on fruit shoots （the boll number could be made up by the boll on vegetative shoots）, and increase the boll number per plant and yield. Retaining vegetative shoots had no significant influence on the fiber quality and delaying senescence. Through retaining vegetative shoots to simplify training was viable with compound measures.
出处
《河北农业科学》
2011年第2期4-6,21,共4页
Journal of Hebei Agricultural Sciences
基金
河北省农业科技成果转化项目(09820115D)
关键词
棉花
营养枝
生长发育
产量
机理
Cotton
Vegetative shoots
Growth and development
Yield
Mechanism
