高分子量麦谷蛋白亚基评分系统的改进及应用

Improvement on the Quality Score System of the HMW Glutenin Subunits and its Application

对 191个冬、春小麦品种的品质分析结果表明 :拉伸曲线的最大抗延阻力能比较客观地反映面筋的强度 ,但该项试验所需的样品量较大 (至少需要 30 0g面粉 )。高分子量麦谷蛋白亚基 (HMW GS)组成受遗传基因的控制 ,麦谷蛋白电泳分析所需的样品量少 (只需半粒小麦即可 ) ,适宜育种的早世代分析。选用各高分子量麦谷蛋白亚基的最大抗延阻力均值的差异建立的HMW GS组成评分系统 。

wheat cultivars were used in analyzing the quality parameters. The result indicated that maxium height of extensogram could reflect the gluten intensity objectively, but the experiment of extensogram reqaired to use 300 g flour at least; HMW glutenin subunits composition of wheat cultivars were controlled by gene, half of one wheat kernel was enough to finish the experiment. An improvement quality score system based on the maxium height extensogram of each of subunits was set up. The system can be used to calculate gluten intensity of wheat cultivars in early generation.