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１９９１～１９９３年度进行多类亲本两两配组杂交。经对Ｆ＿１代测产和有关性状的调查分析，初步明确：（１）目前本区杂种小麦的株高以接近８０ｃｍ为宜；（２）成穗数和穗粒重对产量有较大的正效应，同时穗数和株高与产量存在较大的表型相关，相比之下穗数是影响产量的最关键因素；（３）矮秆类亲本和大穗大粒类亲本的组配产量水平较高，对其进一步研究还发现：其一，单产一般配合力较好的亲本究竟以哪个产量构成因素的优势为主因亲本而异；其二，强优势组合基本上都来自一般配合力较好的亲本间的组合；最后，矮秆亲本性状的显性度各不尽相同，所以选择小麦杂优亲本时还不能单凭亲本本身的株高而决定弃取
From 1991 to 1993, many kinds of parents were crossed with each other. Based on the survey and analysis of F_1 generation and related traits, the preliminary and definite results are as follows: (1) At present, the plant height of hybrid wheat in this area is close to 80cm; (2) (P <0.05). The number of spikes and plant height correlated with the larger phenotype of the yield. In contrast, panicle number was the most important factor affecting the yield. (3) The combination yield of the dwarf parent and the big ear Higher, and further research also found that: First, the yield of the general combining ability of the better parent which yield factors mainly due to the parents vary; Second, the strong combination of advantages are basically from the general combining ability is better Finally, the dominant traits of dwarf parents vary, so the choice of wheat heterosis parents can not only depend on their own plant height and decided to abandon