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以中棉所49及其亲本之一中棉所35为材料,于2002―2003年在新疆棉区的8个试验点研究棉花多项农艺性状与产量的关系,找出对产量影响较大的性状因子,为高产育种和高产栽培提供理论依据。试验结果表明,中棉所49的丰产性要好于中棉所35,主要归因于其具有较高的铃重;通径分析表明,公顷铃数和铃重对产量的作用最大,且对产量影响的效应为公顷铃数>铃重;同时,生育期、株高、果枝始节、子指等农艺性状,对棉花产量的形成也有贡献作用,尤其是从出苗至开花的时间最为重要。
Taking the CIMC 49 and one of its parents, Zhongmian 35 as materials, we studied the relationship between cotton agronomic traits and yield at eight experimental sites in Xinjiang cotton area from 2002 to 2003, and found out that there was a great impact on the yield Trait factor, provide theoretical basis for high-yield breeding and high-yielding cultivation. The results showed that CIMC 49 had a higher yield than CIMC 35 because of its high boll weight. Path analysis showed that the boll number and boll weight had the greatest effect on yield, The effect was influenced by boll number> boll weight. At the same time, agronomic traits such as growth period, plant height, fruiting branch of fruiting branch and fingerlet also contributed to the formation of cotton yield, especially the time from emergence to flowering.