几个热带玉米种质与温带测验种杂交的配合力分析  

Combining Ability Analysis of Several Tropical Maize Germplasm by Using Temperate Testers

作　　者：樊荣峰[1] 王建林[2] 张宝石[1] 

机构地区：[1]沈阳农业大学 [2]青岛农业大学

出　　处：《作物杂志》2008年第2期26-29,共4页Crops

摘　　要：引进热带、亚热带种质资源是拓宽温带玉米种质的一条重要途径。本研究利用CML27、CML40、CML92、CML107和CML116等5个热带种质与温带自交系进行杂交,分析了其杂种优势,结果表明:热带玉米种质和温带玉米种质间杂交,在单株产量、百粒重、子粒容重等方面均有明显的超亲或超标优势,但在行粒数上并未明显超出生产上应用的温带组合。热带玉米种质可以改善温带玉米种质的产量和穗部性状,CIMMYT×丹340杂种优势模式在温带育种中具有重要的应用价值。Introduction of maize germplasm from the tropics is an important way to expand germplasm base in the temperate zone. In this study, five populations CML27,CML40,CML92,CML107 and CML116 in the tropics were crossed with temperate inbred lines. The results showed that significant heterosis in single plant yield, 100-grains weight and grain volume weight were found and no heterosis in grain number per row was found. It implied that the tropical germplasm could improve the yield and spike characteristics of maize in the temperate zone. The pattern of CIMMYT × Dan340 displayed important breeding potential.

关 键 词：玉米 产量 杂种优势 

分 类 号：S513[农业科学—作物学] S718.54