Abstract: In this experiment,I have analysised 9 different parent materials in double cross hybrid method according to the formula of P (P-1) / 2.The results showed : EGM,yunyou-199,shen-137 and other parent materials had high combining ability;The combination EGM ×yunyou -199, shen -137 × EGM × yunyou-199 and T8×EGM had high special combining ability. According to the results of the genetic parameters of each Trait, all Traits were mainly impacted by additive genetic effects,and less conditions of environmental,It was descended from parents to F1.