89份西藏小麦戊聚糖含量和SDS沉淀值的分析  

Assay of Pentosan Content and SDS-sedimentation Value in Tibetan Wheat

作　　者：徐智斌[1] 范瑞英[2] 冯波[1] 冬梅[2] 王涛[1] 

机构地区：[1]中国科学院成都生物研究所,四川成都610041 [2]西藏农牧科学院农业研究所,西藏拉萨850002

出　　处：《麦类作物学报》2007年第5期831-835,共5页Journal of Triticeae Crops

基　　金：中国科学院知识创新工程重要方向项目

摘　　要：为给小麦品种选育提供依据,采用间苯三酚分光光度法测定了89份西藏小麦的戊聚糖含量及SDS沉淀值。结果表明,不同品种间戊聚糖含量差异显著,平均含量变化范围为3.10%-8.95%;SDS沉淀值偏低,平均值仅为26.0 mL;地方品种的戊聚糖含量更趋于正态分布。戊聚糖含量和SDS沉淀值相关不显著。89份材料中,戊聚糖含量较高的小麦品种藏冬4号、柳条春、洛隆小麦,以及戊聚糖含量较低的品种藏冬23号,可作为高、低戊聚糖小麦育种的优良种质资源。Pentosan plays important roles in determining wheat quality. In the present study, pentosan content of Tibetan wheat variety was measured by Phloroglucinal Spectrophotometric Method as well as the SDS-sedimentation value. The results suggest that wheat from Tibet have a wide range of pentosan content , but a little lower SDS-sedimentation value. The average pentosan content among varieties varied from 3.10% to 8.95%. Significant differences of pentosan content were found in different varieties. The pentosan content has no liner relationship SDS-sedimentation value. Several Tibetan wheat with high pentosan content, such as Zangdong 4,Liutiaochun,and Luolongxiaomai , as well as Zangdong23 which with low pentosan content could be used as good germplasm in high or low pentosan content wheat breeding program.

关 键 词：小麦 戊聚糖 SDS沉淀值 

分 类 号：S512.1[农业科学—作物学] S331