论文部分内容阅读
通过相关和通径分析,研究了大豆品种8个数量性状与产量之间的关系,它们的复相关系数为0.7155,决定系数为0.512。其中百粒重、株重与产量呈极显著正相关,相关系数分剐为0.5238~(**)和0.4410~(**)。株粒数、株荚数与产量呈弱的显著正相关,相关系数分别为0.2351~*与0.2347~*。株荚数对产量的作用是通过株粒数而表现的,本身对产量的通径系数为P_(y14)=0.1472,直接作用很小。株高在90厘米以内与产量呈正相关,在100厘米以内呈不明显的正相关,从全部供试材料(株高50～180厘米)看,株高与产量呈负相关。结荚高度与产量呈不明显的负相关。分枝数与产量呈不明显的正相关。
Through the correlation and path analysis, the relationship between 8 quantitative traits and yield of soybean varieties was studied, their complex correlation coefficient was 0.7155 and the determination coefficient was 0.512. Among them, 100-grain weight, plant weight and yield were significantly and positively correlated with the correlation coefficients of 0.5238 ~ (**) and 0.4410 ~ (**). There was a significant positive correlation between the number of plants per plant, the number of pods per plant and the weaker yield. The correlation coefficients were 0.2351 ~ * and 0.2347 ~ * respectively. The effect of plant number on yield was shown by the number of plants per plant. The path coefficient of yield to itself was P_ (y_4) = 0.1472, which had little direct effect. The plant height was positively correlated with the yield within 90 cm but not obviously within 100 cm. The plant height was negatively correlated with the yield from all the tested materials (height of 50-180 cm). There was no obvious negative correlation between pod height and yield. There was no obvious positive correlation between branching number and yield.