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在分析自交系种质血缘的基础上，根据其主要形态性状可以预见性地组配强优势单交组合。分析结果表明，玉米强优势单交种双亲性状搭配的主要组合方式是：株型上为上冲筒型×平展筒型和上冲筒型×上冲筒型；果穗类型上为长筒型×短粗筒型；出子率和千粒重上为大高型×大高型和偏高型×偏高型；雄穗发育上为中下型×适中型或发达型。雌穗吐丝上为快吐丝型和吐丝正常型间相互搭配。
On the basis of analyzing the blood relationship of inbred lines germplasm, according to their main morphological traits, we can group with strong dominant single cross combinations predictably. The results showed that the main combinations of parents with single dominant parental power in maize were as follows: upshoot × flattened and upshoot × upshoot on plant type; longish × Stubby tube type; the output rate and grain weight on a large high-type × large high-and high-type × high; tassel development for the middle and lower × moderate or developed. Egg spawning on the fast-spinning type and silking normal type between each other.