了解每一数量性状的遗传特点,及基因型和外界因素对其变异性的影响程度,在育种实践中具有重要意义。根据对参加比较试验的一些黍的结构分析,我们鉴定了外界因素对决定产量的诸性状的影响(用差离法),如株高、有效分蘖、圆锥花序的长和宽、主穗粒重、全株粒重、千粒重等。 Understanding the genetic characteristics of each quantitative trait and the extent to which the genotype and external factors affect its variability is of great importance in breeding practice. Based on the structural analysis of some millet participating in the comparative experiment, we identified the effects of external factors on the yield traits (using the difference method), such as plant height, effective tillering, length and breadth of panicles, kernel weight , Whole plant grain weight, grain weight and so on.