Variation of Different Types of Grain Quality of Winter Wheat Cultivars under Different Environments in Xinjiang
[Objective and Method]The influence of ecological environment on quality characters of different wheat cultivars was researched, which provided the theoretical bases for the high-quality breeding, high-quality cultivating and quality planning. Eight wheat cultivars of three kinds of gluten strength from Xinjiang were grown at five locations in the north of Xinjiang for two years to test the grain quality.[Result]The result showed that the effect of genotypes, environments and their interaction on eighteen quality characters all reached remarkable competence. More quality characters of strong gluten wheat were superior to that of others, but flour yield of middle-strong gluten wheat was the highest in three kinds. More quality properties of middle-weak gluten wheat were lower. The quality properties of the wheat were remarkable in the difference among different ecological areas, and strong gluten wheat was more apt to be affected by environmental variation respectively. According to the expression of quality characters of strong gluten wheat in different locations, the order is as follows : Manas >Urumqi>Tacheng >Qitai> Ining.[Conclusion]Therefore it was predicted that in Manasi, Urumqi and Tacheng, strong gluten wheat were suitable to be grown, and middle-strong gluten wheat and middle-weak gluten wheat all could be grown at five locations above. However, the difference of the expression of more quality characters was significant among different years at the same location, which was chiefly related to temperature, sunshine and precipitation. So we should pay more attention to the different variation tendency of the expression of the same wheat cultivar in different locations and years in factual quality planning.