Intorduction of Roegneria kamoji Dujiangyan in Western of Chongqing region

Taking state approved Roegneria kamoji cv. Gansi No. 1 as control, a comprehensive comparative analysis on production performance and adaptability of introduced cultivar R.kamoji cv. Dujiangyan in Western Chongqing region was conducted in this study. The results of one-year variety test showed that, there was no serious disease and pest on R.kamoji cv. Dujiangyan, while serious diseases and pests were observed on control. R.kamoji cv. Dujiangyan is suitable to be cultivated in test point. To production performance, the growth period of R.kamoji cv. Dujiangyan is 251 d, which is 7 d longer than that of control(244 d). R.kamoji cv. Dujiangyan has a better production persistence than control. The plant height of R.kamoji cv. Dujiangyan is 5 cm higher than that of control, and its stem-leaf ratio is also slightly higher than that of control. Hey yield of R.kamoji cv. Dujiangyan is 1 761.9 kg·hm-2, which is increased by 17.82%, compared with control(1 512.12 kg·hm-2). Compared with control, R.kamoji cv. Dujiangyan has an obvious advantage on total yield. Since R.kamoji cv. Dujiangyan has merits of high resistance to diseases and pests, well-growing, long growth period, and high hey yield, it suitable to be cultivated in the study area and has great potential to become a high-quality forage.