小麦籽粒戊聚糖含量与穗部性状的相关及遗传通径分析  

Studies on the Correlation and Genetic Path Analysis of Pentosan Cotent and Traits of Spike

作　　者：姜丽娜[1] 邵云[1] 张霞[1] 明红[1] 李春喜[1] 

机构地区：[1]河南师范大学生命科学学院,河南新乡453007

出　　处：《河南师范大学学报（自然科学版）》2005年第2期77-80,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：河南省杰出青年科学基金项目(04120001700)

摘　　要：2001-2002年在河南师范大学小麦试验田选用18个小麦品种作为试验材料,分析了小麦籽粒戊聚糖含量与穗部性状间的关系.结果表明:小麦籽粒总戊聚糖含量、水溶性戊聚糖含量及穗部性状存在极显著的品种差异;总戊聚糖含量与穗数、结实小穗数呈显著遗传正相关,水溶性戊聚糖含量与穗粒数、穗粒重呈极显著遗传负相关,与穗数呈极显著遗传正相关.遗传通径分析结果表明,穗粒数与水溶性戊聚糖含量之间的直接通径系数与其遗传相关系数基本一致.From 2001 to 2002 in Henan Normal University, with 18 varieties of wheat, we studied the relation between the pentosan content of grains and the spike traits. The results showed that there were significant differences in the total pentosan content and water soluble pentosan content of grains and the spike traits among the 18 wheat varieties. The total pentosan correlated positively significant at 0.05 level whih the spike number and fertile spiklets. The water soluble pentosan content correlated negatively significant at 0.01 level with grains number and weight per spike, while positively with spike number. The path analysis showed that the coefficient of direct path and genetic correlation was equivalent between grains number per spike and water soluble pentosan content.

关 键 词：小麦 戊聚糖含量 穗部性状 相关分析 通径分析 

分 类 号：S512.01[农业科学—作物学]