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本文测定了高梁优势杂交种与亲本主要农艺性状的杂种优势及显著性,分析了杂交种与双亲平均值的相关与回归。杂交种秆高、茎粗、顶部四片叶的叶面积均超过双亲平均值,接近或超过优势亲本,差异表现为显著和极显著。千粒重优势不明显与双亲平均值差异不显著。单穗粒数、单穗粒重均大于双亲的平均值和超过优势亲本,差异为极显著。单穗粒数优势最强,是杂交种高产的主要因素。杂交种与双亲平均值经相关与回归分析除千粒重外其他性状相关系数均达到1％显著水平。
In this paper, the heterosis and significance of major agronomic traits of superior sorghum hybrids and their parents were measured, and the correlation and regression of hybrids and their parents were analyzed. The culm height and stem diameter of the hybrids were all higher than those of the parents, and the leaf area of the top four leaves exceeded the average of the parents and the difference was significant and extremely significant. Thousand grain weight advantage is not obvious with the average difference between parents was not significant. The number of grain per spike and grain weight per spike were all greater than the average of parents and superior parents, the difference was extremely significant. The most powerful grain per spike, is the main yield of hybrids. Correlation analysis and regression analysis showed that the correlation coefficients of other traits except 1000-grain weight all reached 1% significant level.