Adaptability evaluation of 22 herbaceous forage germplasms

The yield, plant height, vigor, survival rate, branching and tillering, germination, disease and pest resistance of 22 herbaceous forage germplasms introduced from Australia were measured to comprehensively evaluate their adaptability by using gray mathematical statistical methods and principal component analysis. The results showed that the yields of Brachiaria decumbens, Setaria anceps, B. humidicola, Panicum maximum cv. Mombassa, B. brizantha, Chloris gayana and Andropogon gayana were higher than the other varieties and the adaptability of P. maximum cv. Mombassa, B. decumbens, Andropogon gayana and S. anceps were better.