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对３０份高粱常用恢复系的遗传相关研究表明，抽穗期、一级枝梗数、二级枝梗数、穗粒数、单株产量间呈极显著的正相关，而千粒重与穗粒数、两级枝梗数呈极显著负相关或负相关；穗粒数和千粒重这两个产量构成要素中，穗粒数是主要的，因此选配生育前期长、后期短且灌浆速度快的组合可达到多粒大粒高产的目的。３０份恢复系分类结果表明，中国高粱或近中国高粱类型较多，主要是自然选择和人工选择作用的结果，说明恢复系遗传基础比较狭窄。将引进材料向多方向定向选择以丰富种质资源。对引进材料预先进行基因质测定，可避免配制杂交组合的盲目性。
The genetic correlation analysis of 30 restorer lines used in sorghum showed that there were extremely significant positive correlations between heading stage, the number of primary branches, the number of secondary branches, the number of grains per spike, and the yield per plant. However, Branch number is extremely significant negative correlation or negative correlation; grains per spike and 1000-grain weight of these two yield components, grain number is the main, so the matching early growth period, short late and fast filling combination can reach more grain The purpose of large grain high yield. The results of 30 restorer lines showed that there were more sorghums or sorghums near China, which were mainly the results of natural selection and artificial selection, indicating that the genetic basis of restorer lines was relatively narrow. The introduction of materials to multi-directional selection to enrich germplasm resources. The introduction of materials for preimplantation of the genetic determinants can avoid the blindness of the hybrids.