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选用2002年和2003年中棉所49及其亲本中棉所35西北内陆棉区早中熟组国家棉花区域试验结果,对2个品种的产量性状和产量进行了分析,结果显示,中棉所49的丰产性好于中棉所35,主要归因于其具有较高的铃重;并对棉花产量性状与产量之间的关系以及主要农艺性状与产量性状之间的关系进行了通径分析,以探寻对产量影响较大的性状因子,结果显示,铃数和铃重对产量作用较大,且铃数对产量的效应>铃重效应,同时,生育期、株高、果枝始节和子指通过影响产量构成因子对棉花产量的形成也有间接贡献,其中出苗~开花所需天数最为重要。本研究结果可为新疆棉区棉花生态育种和高产栽培提供重要信息。
Based on the results of regional trials of cotton from Zhongmianshu in Central Northwest Inland Area of China cotton in 2002 and 2003 and the cotton of Zhongmiansuo 35 in Inner Mongolia, the yield traits and yield of the two varieties were analyzed. The results showed that cotton The high yield of 49 was better than that of CIMC 35, which was mainly attributed to its high boll weight. The relationship between yield traits and yield, and the relationship between the main agronomic traits and yield traits was also studied The results showed that the number of bolls and boll weight had a great effect on the yield, and the effect of boll number on yield> boll weight effect. At the same time, the growth period, plant height, fruiting branch initiation And sub-index also indirectly contributed to the formation of cotton yield by affecting yield components, of which the number of days required for emergence and flowering was the most important. The results of this study can provide important information for cotton ecological breeding and high-yielding cultivation in cotton area of Xinjiang.