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选用强筋小麦济麦20、中筋小麦泰山23和弱筋小麦宁麦9号3个小麦品种,设置了灌浆期不同阶段遮光处理:开花后不遮光(S0)、0～11d遮光(S1)、12～23d遮光(S2)、24～35d遮光(S3),研究了其对不同小麦品种籽粒蛋白质组分含量和加工品质的影响.结果表明:3个小麦品种的籽粒清蛋白+球蛋白含量遮光处理间无显著差异;遮光均显著提高了济麦20和泰山23的高分子量谷蛋白亚基、低分子量谷蛋白亚基、谷蛋白、醇溶蛋白和总蛋白含量,其中灌浆中期遮光(S2)处理提高幅度高于其他处理;灌浆中期(S2)和后期(S3)遮光处理显著提高了宁麦9号各蛋白质组分含量.遮光显著降低了小麦籽粒产量,提高了籽粒面团形成时间、面团稳定时间和沉降值,其中灌浆中期遮光处理更为显著,表明籽粒品质的形成与灌浆中期的光照条件更为密切.总体上灌浆期遮光对3个小麦品种籽粒产量、蛋白质组分含量及加工品质指标的调节幅度为济麦20>泰山23>宁麦9号.
Three wheat cultivars including strong gluten wheat Jimai 20, medium-gluten wheat Taishan 23 and weak gluten wheat Ningmai 9 were set up in different stages of grain filling stage, including shading (S0), shading (S1) after 0 ~ 11d, 12 ~ 23d shading (S2) and 24 ~ 35d shading (S3) were conducted to study the effect of grain protein content and processing quality on different wheat cultivars.The results showed that the grain albumin + globulin content of three wheat cultivars were shaded There was no significant difference between treatments. Shading significantly increased HMW glutenin subunit, low molecular weight glutenin subunit, glutenin, gliadin and total protein in JiMi 20 and Taishan 23, (S2) and later (S3) shading treatments significantly increased the content of each protein component of Ningmai 9. Shading significantly reduced the grain yield of wheat, and increased the time for the formation of dough, the stability of the dough Time and sedimentation value, of which medium grain shading treatment is more significant, indicating that the formation of grain quality and grouting medium light conditions are more closely.General grain filling stage of three wheat varieties of grain yield, protein content And adjusting the amplitude of the processing quality index of 20> Taishan 23> Ningmai 9 Jimai.