摘要
通过对近 30年来我国西南山区应用推广的 2 0个玉米杂交种种质基础的分析 ,发现其中多数杂交种都直接或间接含有西南山区玉米地方种血缘 ,其中又有 6 0 %的杂交种直接或间接含有乌江玉米和贵州晴隆五穗白或其中之一的血缘。表明以西南山区玉米地方种质为基础 ,经选系或改良 ,并采用改良Lancaster或改良Reid系×地方种质直选系或改良系的组配方式 。
It was found out that most of hybrids could directly or mediatly contained the consanguinity of the maize native variety at Southwest mountainous district in China.By analysing the germplasm base of 20 maize hybrids used at Southwest mountainous district in China near 30 years.Among the hybrids contained the consanguinity of the maize native variety,there are 60% hybrids that could directly or mediatly contained the consanguinity of Wujiang Maize and Wusuibai variety at Guizhou Qinglong,or the one both them The result showed that it was taked to the maize native variety at Southwest mountainous district as the basic germplasm bred or improved the maize inbred lines,and used combination ways of being improved Lancaster of being improved Reid line×the line or improved line selected from the maize native variety at Southwest mountainous district in China,which could be the main way to breed the maize hybrids planted suiting to southwest mountainous district in China
出处
《玉米科学》
CAS
CSCD
2002年第2期3-6,共4页
Journal of Maize Sciences
基金
重庆市玉米育种攻关资助项目