高志军+杨文耀+刘景川+郭世华

摘 要：该文采用倒伏系数和田间倒伏面积对比的方法，对内糜5号、内糜6号、内糜7号、内糜8号、内糜9号、伊选黄糜等6个主栽糜子品种进行了抗倒伏试验研究。结果表明，内糜5号、内糜6号、内糜8号、内糜9号的倒伏系数小于1.0，抗倒伏能力较强，内糜7号和伊选黄糜倒伏系数大于1.0，抗倒伏能力较弱，易发生大面积倒伏现象。在今后的糜子育种工作中，应努力提高糜子单茎根量和茎秆机械强度，降低植株高度，以增强其抗根倒伏能力。

关键词：糜子；品种；抗倒伏试验

中图分类号 S513 文献标识码 A 文章编号 1007-7731（2016）08-30-02

Abstract：This experiment studied Neimi No.5， Neimi No.6，Neimi No.7，Neimi No.8，Neimi No.9 and Yixuanhuangmi etc. six main planting millet varieties lodging resistance with the method by adopting lodging coefficient and lodging in the field area of comparison. The results showed that，lodging coefficient of Neimi No.5，Neimi No.6，Neimi No.8 and Neimi No.9 were less than 1.0，lodging resistance ability was strong，lodging coefficien of Neimi No.7 and Yixuanhuangmi were greater than 1.0，lodging resistance ability was weak，proned to the phenomenon of a large area of lodging. During the selective breeding of millet in future，we should try to improve the millet root weight and culm mechanical strength，reduce plant height in order to enhance its resistance about root lodging resistance.

Key words：Millet；Varieties；Lodging resistance

糜子属禾本科黍属，是中国北方干旱半干旱地区的主要粮食作物之一，具有抗旱、耐瘠薄、耐盐碱、适应性强、生育期短等特性。同时糜子又是C4作物，能够充分利用其他作物不能够利用的水热资源，具有高产、稳产的特性。目前关于糜子的研究主要集中在栽培方式、抗逆生理、资源筛选与利用等方面，而关于糜子田抗倒伏性方面的研究则较少。倒伏是导致糜子减产的重要原因之一，加之最近几年半干旱地区生育期雨量偏大，糜子倒伏程度加剧，严重影响了糜子产量。为此，本试验采用倒伏系数和田间倒伏面积对比的方法来筛选抗倒伏性强且适合机械化收获的糜子品种，为糜子抗倒伏鉴定育种工作提供科学依据。

1 材料和方法

1.1 试验材料 试验材料为内糜5号、内糜6号、内糜7号、内糜8号、内糜9号、伊选黄糜等6个主栽糜子品种。试验于内蒙古鄂尔多斯市达拉特期新民村试验站进行。……