大麦籽粒醇溶蛋白组分的基因型和环境变异及其与β-淀粉酶活性的关系

选用7个二棱大麦品种,种植在生态条件差异很大的3个地区,测定和分析了以上大麦籽粒的蛋白质含量、醇溶蛋白组分含量及β-淀粉酶活性,分析了这些性状的基因型和环境变异之间的相关性。结果表明:这些性状在试点间、品种间差异显著,且试点和品种的互作效应显著;B醇溶蛋白和C醇溶蛋白的基因型效应要比环境效应影响大,而蛋白质含量、D醇溶蛋白和β-淀粉酶活性的环境效应要比基因型效应的影响大。相关分析表明:籽粒蛋白质含量与B醇溶蛋白含量、C醇溶蛋白含量与β-淀粉酶活性呈显著正相关;B醇溶蛋白含量和C醇溶蛋白含量均与β-淀粉酶活性呈显著正相关。

The Genotypic and Environmental Variation of Hordein Fraction and Its Relationship with Beta-amylase Activity in Barley Grain

The differences among cultivars and environments(locations) in grain protein content,hordein fraction content and beta-amylase activity were studied by using seven two-rowed spring barley cultivars grown in different ecological regions in this paper.The result showed that there were significant differences in these traits among locations and cultivars.Moreover,the interaction between location and cultivar were also significant.The genotypic effect for B hordein and C hordein was larger than environmental effect.By contrast,the environmental effect for grain protein,D hordein and beta-amylase activity was larger than genotypic effect.The correlation analysis showed that grain protein content was positively correlated with B hordein,C hordein and beta-amylase activity.B hordein and C hordein was positively correlated with beta-amylase activity.