Evaluation of forage grass varieties introduced from USA for their adaptation in Zhejiang

Five forage grass species, 24 varieties in total, Which introduced from USA were evaluated for their adaptation in Hangzhou, Zhejiang province, from October 1997 to June 1999. Annual ryegrass showed both high forage yield and good nutritive value in winter sowing. Perennial ryegrass and tall festuca had good heat tolerance, aftermath growth and persistence. Cocksfoot was adapted to the environmental conditions, but relatively low in forage yield. Bromegrass was heat sensitive and should be utilized by winter sowing. Annual ryegrass cv. Surrey and perennial ryegrass cv. Bison were recommended as the most promising varieties for winter sowing and permanent pasture establishing, respectively.