玉米新品种邯东599丰产稳产性分析

Analysis of the High and Steady Yield of the New Maize Cultivar Handong 599

邯东599是邯郸市农业科学院与河北东昌种业有限公司共同选育的玉米新品种，2014年5月通过河北省品种审定。根据2012~2013年河北省夏播玉米超密组区域试验和生产试验的产量汇总资料，利用高稳系数法、回归系数法、适应性参数法并结合产量平均数法，对邯东599的丰产稳产性进行了分析。结果表明：2012~2013年河北省夏播玉米超密组区域试验，邯东599平均产量为10852.0 kg/hm2，较对照郑单958增产4.67%，差异达极显著水平；2013年同组生产试验，平均产量为9498.0 kg/hm2，较对照郑单958增产6.08%，邯东599的丰产性显著优于对照品种郑单958，增产潜力较高。邯东599高稳系数为85.38%，〉对照郑单958；回归系数为0.9313，适应性参数为0.93，均较郑单958更接近于1。邯东599对环境适应性强，高产稳产性好且优于对照郑单958，具有很好的应用推广价值。

The new maize vari ety Handong 599 bred by Handan Academy of Agricultural Sciences and Hebei Dongchang Seed Industry was approved by Hebei Crop Variety Approval Committee in May 2014. Based on the summary data of summer maize in the regional test and the production test in 2012-2013 in Hebei Province,the datum of 2 years were analyzed using the high stability coefficient （HSCi）,coeffi-cient of regression, adaptability parameter （ai） and average o f yield to judge productivity, stability and adaptability of Handong 599. The results showed that the average yield of Handong 599 was 10 852.0 kg/hm2, compared with the control increased by 4.67% in the regional test of super dense group production test of summer maize in Hebei Province in 2012-2013,the difference reached a very significant level. In the same group production test in 2013, the average yield was 9 498.0 kg/hm 2, 6.08% more than that of Zhengdan 958. The yield of Handong 599 was significantly higher than that of Zhengdan 958,and the yield potential of which was higher. The high stability coefficient was 85.38%,regression coefficient was 0.931 3,adaptive parameter was 0.93. Handong 599 was a hybrid with high and stable yield for extending and developing.