Grass production of three Roegneria kamoji varieties in Chengdu plain

Roegneria kamoji perennial species in Triticeae and hexaploidy (2n=6x=42) with the StYH genomes.In this study,the yields of two new varieties of R.kamoji——Dujiangyan and Chuannong No.2 were reported with cultivated variety (R.ciliaris Gansi No.1) as control.Three years experiment showed that the hay yield of R.kamoji Dujiangyan and R.kamoji Chuannong No.2 were 20 973 and 21 831 kg·ha-1,respectively,which increased by 19.9% and 24.8%,respectively,compared with the cultivated variety R.ciliaris Gansi No.1.Furthermore,the two new varieties had longer growth period and higher protein content than those of R.ciliaris Gansi No.1.All of these improvements suggested that the two new varieties of R.kamoji could be used as forage grass in upland areas.