Variation on Protein Quality among Wheat Varieties in Shanxi Province

Difference in protein quality among wheat varieties participated in the south and central regional trials of Shanxi from 2005 to 2010 was analyzed.The results showed that,variation coefficient of protein quality between different years and regional locations of wheat varieties were: sedimentation valueprotein contentwet or dry gluten content.Average values of protein content,sedimentation value and wet or dry gluten content of wheat varieties planting in dry land were all higher than those planting on irrigation land.Analysis on the effects of wheat varieties,years and planting locations on wheat protein quality indicated that the interaction effects of those three factors on protein quality was higher than other factors.Planting locations and genotypes had less direct effect on protein quality,and years had higher effect on wet or dry gluten content.The interaction effects between two factors of genotype,year and plant location were higher than that of any single factor.