【摘要】 结合我国玉米育种的实际情况,对耐密型玉米自交系选育技术:增大选择密度、选择农艺性状、早代选择大群体、增大选择压力、提高自交系的抗逆性、目测选择外观性状、田间测定配合力、耐密育种材料的改良与创新,和耐密型玉米自交系选育技术存在的问题进行了探讨。更多还原

【Abstract】 Combined with actual situation of maize breeding in our country,we discussed the breeding techniques for inbred lines of high-dense-bearing maize,such as increasing choosing density,choosing agronomic characters,choosing the big community in early generation,increasing selection pressure,improving stress resistance of inbred line,choosing appearance characters by eyes,examining combining ability in field,improving and innovating breeding materials,and so on.And the problems on breeding techniques of inbred lines of high-dense-bearing maize were discussed at the same time.更多还原