3个玉米杂交种的丰产稳产性分析  

Analysis on Productivity and Stability of Three Maize Hybrids

作　　者：石海春[1] 潘绍伦[1] 柯永培[1] 袁继超[1] 余学杰[1] 孙群[2] 杨志荣[2] 李莹[1] 李奇[1] 

机构地区：[1]四川农业大学农学院,四川雅安625014 [2]四川大学生命科学学院,成都610064

出　　处：《玉米科学》2008年第1期62-66,共5页Journal of Maize Sciences

基　　金：国家农业科技成果转化资金项目(J2004-B-012);国家星火计划项目(2005EA810080);四川省“十五”玉米育种攻关项目(2001-3-13);四川省教育厅重点科研开发项目(2005A038)

摘　　要：采用Eberhart-Russell模型和高稳系数法,对3个玉米杂交种的丰产稳产性进行了综合评定。结果表明,杂交种正红2号、正红6号和正红115区试平均产量分别为7575.0kg/hm2、7611.8kg/hm2和7304.0kg/hm2,分别比对照增产10.2%、16.6%和6.2%,丰产性突出,稳产性较好,生态适应性强。3个杂交种在环境指数4500～9000kg/hm2时比对照均有不同程度的增产。在生产水平6000kg/hm2以上的地区更能充分发挥正红2号的增产增收潜力。The productivity and yield stability of three maize hybrids were evaluated through Eberhart-Russell＇ s model and high stable yielding coefficient method. The results showed that the average yield of hybrid Zhenghong 2, Zhenghong 6 and Zhenghong 115 were 7 575.0 kg/ha, 7 611.8 kg/ha and 7 304.0 kg/ha, with 10.2%, 16.6% and 6.2% yield increase respectively compared with the check hybrid, which have high productivity and yield stability with fine ecological adaptation. Three hybrids have some degree yield increase in environment index between 4 500 kg/ha and 9 000 kg/ha, however, it would bring Zhenghong 2 to bear more abundant capacity of yield and income increase in the region of production level over 6 000 kg/ha.

关 键 词：玉米 杂交种 丰产性 稳产性 正红2号 正红6号 正红115 

分 类 号：S513.032[农业科学—作物学]