以14个绵阳系列小麦品种为材料, 研究不同品种籽粒蛋白质含量、蛋白组分和SDS-沉降值的变化规律, 以及籽粒蛋白质含量及其组分与SDS-沉降值的关系, 为绵阳系列小麦品种的选育提供理论依据。研究结果表明, 不同小麦品种籽粒蛋白质含量不同, 变幅为7.30%~13.09%, 多数品种属于低蛋白质含量类型。多数品种的SDS-沉降值分布在20~30 mL范围内。不同品种籽粒蛋白组分各异。籽粒蛋白质含量、贮藏蛋白含量、谷蛋白和醇溶蛋白含量都与SDS-沉淀值成极显著的正相关关系。高的籽粒蛋白质含量和谷蛋白与醇溶蛋白含量是绵阳系列小麦品种获得较好烘烤品质的前提。
The changes of the contents of grain protein and its fractions and SDS-sedimernation value from 14 cultivars in wheat of Mianyang, and the relaionships of the contents of grain protein and its fractions with SDS-sedimentation were studied. The aim was to provide the theoretical evidence for wheat improvement of Mianyang. The results showed that the grain protein contents in the different cultivats were different. The range of grain protein content was from 7.30% to 13.09%. Most of eultivats belonged to the type of low protein content.The range of SDS-sedimentation value in most of cultivars was from 20 to 30 mL. The content of grain protein fractions in all cultivars were different. The relationships of grain protein content and storage protein content and gluten in content and gliabin content with SDS-sedimentation value were signfficantly positive. The high contents of storage protein and glutenin and gliabin were the basis of obtaining the high baking quality in wheat of Mianyang.
[1] 王月福, 于振文, 李尚霞, 等. 施氮量对小麦籽粒蛋白质含量及加工品质的影响[J]. 中国农业科学, 2002, 35(9): 1071-1078.
[2] Pechanck U, Karger A, Groger S, et al. Effect of nitrogen fertilization on quantity of flour protein components, dough properties, and breadmaking quality of wheat[J]. Cereal Chemistry, 1997, 74(6): 800-805.
[3] 朱新开, 郭文善, 周君良, 等. 氮素对不同类型专用小麦营养和加工品质调控效应[J]. 中国农业科学, 2003, 36(6): 640-645.
[4] Johansson E, Luisa P L M, Jonsson J O. Effects of wheat cultivar and nitrogen application on storage protein composition and breadmaking quality[J]. Cereal Chemistry, 2001, 78(1): 19-25.
[5] 陈绍军, 吴兆苏. 论馒头小麦品种的品质要求[J]. 种子, 1990(4): 32-33.
[6] 林作楫, 王光瑞, 赖菁茹, 等. 我国小麦品质概况和优质品种评选[J]. 麦类文摘, 1996, 16(5): 9-10.
[7] 刘志华, 胡尚连, 韩占江, 等. 小麦蛋白质组分与加工品质关系[J]. 粮食与油脂, 2003(10): 7-9.
[8] 徐风, 谭蕴之, 朱赞华. 小麦鉴定方法的研究[J]. 安徽农业大学学报, 1998(3): 1-12.
[9] 马传喜, 吴兆苏. 小麦胚乳蛋白质组分及高分子量麦谷蛋白亚基与烘考品质的关系[J]. 作物学报, 1993, 19(6): 562-567.
[10] 张彩英, 李宗智. 冬小麦若干加工品质性状遗传变异及相关性的研究[J]. 河北农业大学学报, 1989, 12(3): 8-15.
[11] 吴学大, 赵彬. 黔西北山区小麦的育种方向和目标[J]. 华北农学报, 2005, 20(专辑): 169-171.
[12] 李鸿恩, 张玉良, 李宗智, 等. 我国小麦种质资源主要品质特性鉴定结果及评价[J]. 中国农业科学, 1995, 28(5): 29-37.