耐密宜机收玉米品种选育探讨

Discussion on the Breeding for Mechanical Harvesting and Density Tolerant Maize Hybrids

随着我国玉米育种水平的不断提高,耐密型品种在生产上大面积推广,推广机械化收获将是节约成本、增加效益的有效手段。目前推广的玉米品种与机械化收获之间存在不相适应的问题。以提高品种耐密性为核心,持续增加种植密度,同时重视品种机械化作业特性将是未来品种选育的主要方向。探讨了耐密宜机收玉米品种及自交系选育和鉴定的方法,以期抛砖引玉,不断提高我国玉米育种水平。

With the increasing of maize breeding levels in our country, promotion of density tolerant and mechanical harvesting varieties in a larger area would be an effective means to save costs and increase efficiency. Incompatible problems exist between the current maize varieties and mechanized harvest. Taking the improvement of density toler- ance as the core, by increasing varieties planting density and emphasizing mechanized operations at the same time will be the main direction of maize breeding in the future. This article discussed maize varieties of high density toler- ance and mechanical harvesting, and inbred breeding and identification methods, in order to put forward and contin- uously improve the level of maize breeding.