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本研究测定了硬粒小麦的两个代换系Ｌａｎｇｄｏｎ１Ｄ（１Ａ）和Ｌａｎｇｄｏｎ（Ｅｄｍｏｒｅ—１Ｂ）及其具有不同胚乳蛋白组分的Ｆ２衍生系的籽粒产量性状和质量性状。测得结果，其产量性状和面粉质量性状有显著的基因型间差异，但籽粒的Ｎ水平差异不显著。根据尺码一排除液相层析法、面团揉和时间和峰值电阻法测得结果表明，具有Ｅｄｍｏｒｅγ—４５带的所有基因型的质量参数，如ＳＤＳ—沉降值、麦谷蛋白的比例（Ｐ１％）均提高了；具有１Ｄ／１Ａ染色体的代换系，其这种效应更加明显（提高２倍）。同时含有１Ｄ染色体和γ—４５基因的基因型，其质量性状参数超过只含有１Ｄ或γ—４５基因的基因型。这表明，除混粉参数、峰值电阻和阻尼衰退外的所有质量性状都有叠加效应。
In this study, grain yield traits and quality traits of Langdon1D (1A) and Langdon (Edmore-1B) and F2 derived lines with different endosperm protein components were determined for two wheat Duroc lines. The results showed that the yield traits and flour quality traits have significant differences between genotypes, but the grain N level was not significantly different. Based on size exclusion liquid chromatography, dough kneading time and peak resistance measurements, the quality parameters for all genotypes with Edmore gamma-45 bands such as SDS-sedimentation value, glutenin fraction (P1%), All increased; substitution lines with 1D / 1A chromosomes were more pronounced (2-fold). The genotypes containing both the 1D chromosome and the γ-45 gene outperformed the genotypes containing only the 1D or γ-45 genes. This shows that all quality traits except for the mixing parameters, peak resistance and damping recession have additive effects.