优质高产谷子新品种豫谷20的选育

Breeding of New Foxtail Millet Yugu No. 20 with High Yield and Better Quality

[目的]为豫谷20的推广和应用提供科学依据。[方法]豫谷20是安阳市农业科学院通过对冀谷19ד豫谷9号×安2688”进行有性杂交，后代利用动态育种技术进行选择，在海南、安阳交替系选，经4年5代定向选育而成的优质高产多抗夏谷新品种。[结果]2012～2013年参加国家（华北夏谷区组）谷子新品种区域试验，2年平均产量5052．0kg／hm^2，较对照冀谷19增产9．41％，居参试品种第1位。21点次区域试验17点次增产，增产点率为80．95％。[结论]豫谷20熟期适中，适宜在河南、河北、山东夏谷区晚春播或复播种植，并在2013年12月通过全国谷子新品种鉴定委员会鉴定。

[ Objective ] This paper aims to provide scientific basis for the promotion and application of Yugu No. 20. [ Method] Yugu No. 20 is a new summer foxtail millet variety bred by crossing between Jigu No. 19, Yugu No. 9 and An No. 2688 in Hainan and Anyang, after 4 years of 5 generations of selection. The descendant selection is based on dynamic breeding. [ Result] It ranked the top during the national summer millet new cuhivars regional tests （North China） from 2012 to 2013, with average yield reaching 5 052 kg/hm2, an increase of 9. 41% compared with Jigu No. 19. 17 places registered higher yield among 21 regions, a ratio of 80.95%. [ Conclusion] It was concluded that Yugu No. 20, with moderate mature phase, is suitable for growing at Henan, Hebei and Sbandong. Meanwhile, it was approved by Na- tional Millet Variety Identification Committee in December 2013.