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前人研究认为,大豆品种的株高、节数、荚数、全株重和总粒数对产量影响较大。充分认识主要性状对产量构成的作用,找出最佳数量性状指标,既是作好育种工作的依据,也是选用品种的参考指标。我所利用1963—1983年大豆品系鉴定、引种观察、品种资源和全国生态观察十个试验中1196个品种(系)的资料,采用次数分布归类统计分析方法,计算与产量的相关性,寻找高产最佳数量性状指标,其结果如下: 一、株高:株高与产量的相关性,r=0.7158※※(h=14),达到极显著水平。在承德地区,大豆株高最低不能低于90厘米,最高不能超过135厘米,而以115厘米左右的产量为最高。
Previous studies suggest that the soybean plant height, number of sections, pods, total plant weight and the total number of grains on the yield greater impact. Fully understanding the role of major traits on the composition of output and finding out the best quantitative trait indices are not only the basis for breeding work but also the reference indexes for selecting cultivars. Based on the data of 1196 varieties (lines) from 1963 to 1983 identification, introduction observation, variety resources and national ecological observation in ten experiments of soybean germplasm resources, we used the statistical analysis method of the number distribution to calculate the correlation with yield, The results were as follows: 1. Plant height: the correlation between plant height and yield, r = 0.7158 ※※ (h = 14), reached the extremely significant level. In Chengde, soybean plant height minimum can not be less than 90 cm, the maximum can not exceed 135 cm, while the output of about 115 cm is the highest.