Abstract: A variety comparative trial was carried out using the 6 introduced forage sorghum varieties including Zaomu, late-maturing pacetter, Daka, Dalong, Nengsi No.1 and Nengsi No.2. The agronomic characters, fresh grass yield and normal nutritive composition of different forage sorghum varieties were determined and compared. Furthermore, the nutritional indexes of forage were also calculated. The results showed that the highest fresh grass yield was observed in Daka, followed by Dalong, Nengsi No.2, Nengsi No.1, late-maturing pacetter and Zaomu, and the fresh grass yield of Daka, Dalong, Nengsi No.1 and Nengsi No.2 all reached up to 4 000 kg. The analysis of contents of CP, ADF, NDF and ADL showed that the best nutritional quality was obtained in Daka, followed by Dalong, late-maturing pacetter, Zaomu, Nengsi No.2 and Nengsi No.1.

Key words: forage sorghum, trait, fresh grass yield, nutrition