摘要
[目的]对辽南地区选育和引进的17个糯玉米自交系农艺性状的遗传多样性及其杂种优势类群进行分析。[方法]采用NCⅡ试验设计,选用不同杂种优势类群且国内常用的4个糯玉米自交系为测验种,对辽南地区17个外引和自选糯玉米自交系进行研究。[结果]17份糯玉米自交系的主要农艺性状间存在显著遗传差异,通过聚类分析划分为4个杂优类群。[结论]17份糯玉米自交系农艺性状好,优良性状遗传力高、一般配合力好,各个类群间存在杂种优势,但遗传基础不宽。
[Objective] Genetic diversity and heterosis groups of 17 Waxy maize inbreed lines introduced in Liaonan area were analyzed. [Method] By NC II experiment design, the 4 inbred lines belonged to different heterosis groups were selected as the testing varieties, and the agronomic traits and heterosis groups of 17 Waxy maize inbreed lines were also studied in Liaonan. [Result] There were significant genetic diversity in the main agronomic traits and 17 inbreed lines were divided into 4 heterosis groups through the cluster analysis.[Conclusion] 17 waxy maize inbred lines had good agronomic traits, high good trait heritability, GCA of good features, problems heterosis among the various groups, but the genetic basis between them was not wide.
出处
《园艺与种苗》
CAS
2015年第8期80-82,共3页
Horticulture & Seed
基金
辽宁省教育厅自然科学基金项目(L2012433)
关键词
糯玉米
自交系
农艺性状
遗传多样性
聚类分析
Waxy maize
Inbreed line
Agronomic traits
Genetic diversity
Clustering analysis
