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本项研究结果表明：①类平均法较适用于高粱的聚类分析；②聚类结果较好地反映了试材间的遗传差异；③遗传距离（Ｄ２）与地理来源、血缘没有必然的联系；④遗传距离（Ｄ２）与杂交种产量相关不显著，与超中亲优势（Ｈ１）相关极显著，与超高亲优势（Ｈ２）相关显著；⑤遗传距离（Ｄ２）与一般配合力（ＧＣＡ）、特殊配合力（ＳＣＡ）之间相关不显著；⑥用遗传距离（Ｄ２）大小指导组配优良高粱杂交组合尚待进一步研究。
The results of this study showed that: ①the average of the class method is more suitable for clustering analysis of sorghum; ② the clustering results better reflect the genetic differences between the test materials; ③ genetic distance (D2) is not necessarily related to geographical origin, blood ; ④ The genetic distance (D2) was not significantly correlated with the yield of hybrids, it was significantly correlated with the super-middle-superiority (H1) and significantly correlated with the excessively high parental advantage (H2); ⑤ The genetic distance (D2) and general combining ability ) And special combining ability (SCA); ⑥Guided by the genetic distance (D2), the combination of elite sorghum combinations is yet to be further studied.