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以单穗粒数、千粒重、穗数/平方米、收获指数、生物学产量与籽粒产量进行相关和复相关分析。分析结果表明,生物学产量单独或参与其他性状的组合与籽粒产量都呈极显著正相关。通径分析表明,生物学产量对籽粒产量贡献最大,千粒重对籽粒产量影响最小。各种性状的组合中,R=0.98以上的有10种(R~2=0.96)。这10种组合,控制了籽粒产量变异的96.0％,说明它们是影响产量的主要因素。欲选育出1500斤/亩的高产品种,似以提高穗粒数较为有效。
The correlations and correlations between grain yield and grain yield per spike, grain weight, spikes per square meter, harvest index, and correlation were analyzed. The results showed that the combination of biological yield alone or in other traits was significantly and positively correlated with grain yield. Path analysis showed that biological yield contributed most to grain yield and grain weight had the least impact on grain yield. Among the combinations of various traits, there are 10 types of R = 0.98 or more (R ~ 2 = 0.96). These ten combinations control 96.0% of the variation in grain yield, indicating that they are the major factors affecting the yield. To bred 1500 kg / mu of high-yielding varieties, like to improve the number of grains per spike more effective.