关键词: 代谢组学, 代谢组学, 质谱, 食品, 认证, 鉴定

Abstract: To understand the drought resistance of different spring wheat varieties in Xinjiang, 20% PEG- 6000 was used as water stress agent, germination rate, germination potential, relative bud length, relative root length, relative germination rate and drought resistance index of 10 spring wheat varieties were analyzed. The subordinate function analysis was used to comprehensively evaluate the drought resistance of the wheat varieties. The results indicated that compared with those of the control, the germination rate, germination potential, relative bud length, relative root length and relative germination rate were inhibited under 20% PEG stress, and the range of reduction in different varieties was different. The comprehensive evaluation value (D value) of 10 spring wheat varieties was from 0.01 to 0.82.‘C (Grade 1);‘Xinchun No.3’,‘Xinchun No.6’and‘Xinhan No.688’were the medium resistant varieties (Grade 2);‘Xinchun No.2’‘, Xinchun No.26’were the weak resistant varieties (Grade 3);‘Xinchun No.7’,‘Xinchun No.17’,‘Xinchun No.20’and‘Xinchun No.21’were incapable of drought resistance (Grade 4). At last, we selected‘Chinese Spring’,‘Xinhan No.688’,‘Xinchun No.3’and‘Xinchun No.6’, which were more suitable for drought stress environment, to be germplasm resource of drought resistant wheat breeding in Xinjiang.