Comparison of two Elymus nutans germplasms in alpine region on forage productivity and property

In order to cultivate a new cultivar with resistance, high yield, and excellent nutritional quality, and get excellent plant resources, feeding traits of high protein new germplasm of Elymus nutans had been observed for two continuous years. The seasonal dynamics of protein content and characteristics of amino acid components have been studied. The results showed that feeding quality of QE36 performed steadly, and nutritional quality traits (high protein, low fiber) were significantly superior than that of control (GE07). In the whole growth period, the content of crude protein reduced, and the crude protein content of QE36 was higher than that of GE07, and had significant differences from heading stage to booting stage. In early flowering, the content of amino acid composition in material QE36 was significantly higher than that of GE07, and the essential amino acid content was 1.6 times of GE07. In conclusion, QE36 could be served as an excellent high protein Elymus nutans germplasm materials.