不同类型玉米杂交种稳产性与适应区研究  

A STUDY ON PRODUCTIVITY AND ADAPTABILTY OF DIFFERENT TYPES OF CORN HYBRIDS IN HENAN PROVINCE

作　　者：石敬之[1] 李士贞[1] 

机构地区：[1]河南农业大学,郑州450002

出　　处：《河南科学》1992年第4期389-395,共7页Henan Science

摘　　要：对4种类型12个玉米杂交种的丰产性,适应区进行了对比研究.结果表明:不同类型杂交种产量不同;同一类型杂交种间产量也有差异。竖叶型单交种豫玉5号、豫玉3号均与平叶型丹玉13产量差异达极显著水平;改良豫玉5号、改良豫玉3号相应比豫玉5号、豫玉3号显著增产;三交种、双交种产量水平一般不及单交种。但郑三3号、豫三2号、3号。郑双3号、豫双6号的产量则等于甚至高于优良单交种丹玉13。不同杂交种适应区和稳定性不同,改良豫玉5号、改良豫玉3号、豫玉3号和豫玉5号的产量较高,适应性广泛。The paper deals with the study of productivity and adaptability of 4 types of 12 corn hybrids. The result indicates: The yield of different types of hybrid is different, so is the same type. The yield difference between Ideal Plant type single cross H·yu-5. H·yu-3 and general plant type Danyu-13 is significant. compared with single cross H·yu-5. H·yu-3, the yields of improved single cross H·yu-5. H·yu-3 are highly improved. Three-way cross. double cross are not as high as single cross. But the yields of Zheng3-3 H_(3-2)·H_(3-3), Zheng double-3, H?double-6 are equal to or higher than the famous single cross Danyu-13. The adaptability and stability of different hybrids are different. Among them, the yields of single cross H·yu·single cross H·yu-3, improved single cross H·yu-5·H·yu-3 are the highest, adaptability are also the best.

关 键 词：玉米 杂交 稳产性 适应区 

分 类 号：S513.03[农业科学—作物学]