Research on Domestication of Indigenous High-quality Wild Grass Species in Gannan

Abstract:

In order to effectively protect and utilize the wild grass resources in Gannan,this study focuses on the domestication of native grass species for the ecological restoration of grassland and the development of livestock industry.The present study took the excellent native grass species of Elymus nutans and Poa pratensis,which are unique to the Gannan region,as the domestication materials,and introduced Festuca sinensis and Medicago sativa as the control materials.Sinensis and alfalfa (Medicago sativa) were introduced as controls,the results showed that the average plant height,hay yield and seed yield of Phyllanthus pratensis at the age of 1,2 and 3 were 80.53 cm,3 536.67 kg/hm² and 25.3 kg/hm²,respectively,which were all significantly higher than those of other species(P<0.01),and Poa pratensis was the second highest.These results indicated that pendulous lacewing and morning glory are excellent wild forage grasses suitable for the alpine region of Gannan,which is of great significance for promoting local ecological protection and sustainable development.