短語(yǔ)詞組短語(yǔ)soybean cross -breeding 大豆襍交育種binary cross -breeding 二元襍交sugarcane cross -breeding 甘蔗襍交育種cross -breeding improvement 襍交改良single spore cross -breeding 單孢襍交Self -cross selective breeding 自交選育Mon - cross breeding 單單襍交 返回 cross-breeding