玉米杂交种产量稳定性研究

Study on the Yield Stability of Hybrid Corn

采用变异系数法和回归系数法对 10个玉米杂交种 6个试点 1a结果进行产量稳定性分析 ,结果表明 :不同杂交种在不同环境条件下产量稳定性有较大差异 ,其中豫玉 2 2 ,天禾 3号 ,93 -1和掖单 19号高产稳产 。

The yield stability of ten hybrid corns from six places was studied with the method of variation coefficient and regression. The result indicated that the yield stability of those hybrid corn combinations was different in variable growth environments. The combination Yuyu 22, Tianhe 3, 93-1 and Yedan 19 were with the highest and most stable yield and also very good hybrid corn combinations.