啤酒大麦麦芽品质性状的基因型和环境变异及其之间的相互关系

采用多点试验,研究了7个春性二棱啤酒大麦在不同生态条件下的籽粒蛋白质含量和主要麦芽品质的差异。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。糖化力、库尔巴哈值和α-氨基氮的基因型效应要比环境效应影响大,而蛋白质含量和麦芽浸出率的环境效应要比基因型效应影响大。相关分析表明,浸出率和α-氨基氮显著负相关,糖化力与α-氨基氮显著正相关,库尔巴哈值与α-氨基氮显著正相关。籽粒蛋白质含量与糖化力和α-氨基氮显著正相关,与浸出率显著负相关。

The Genotypic and Environmental Variation of the Main Malt Quality in Malting Barley and the Relationship between These Traits

The differences among cultivars and environments(locations) in grain protein content and some malting quality were studied by using seven two-rowed spring malting barley cultivars grown at different ecological regions.The result showed that there was a significant difference in these traits among locations and cultivars.Moreover,the interaction between location and cultivar were also significant.The genotypic effect for diastatic power,kolbach index and alpha-amino nitrogen was larger than environmental effect.By contrast,the environmental effect for grain protein and malt extract was larger than genotypic effect.The correlation analysis showed that malt extract was negatively correlated with alpha-amino nitrogen.The diastatic power was positively correlated with alpha-amino nitrogen.Kolbach index was positively correlated with alpha-amino nitrogen.Grain protein content was positively correlated with diastatic power and alpha-amino nitrogen,and negatively correlated with malt extract.