作物研究2016，Vol.30Issue(5)：520-523,4.DOI:10.16848/j.cnki.issn.1001-5280.2016.05.09
芸薹属作物远缘杂种优势研究
Studies on the Heterosis of Distant Hybridization of Brassica Crops
摘要
Abstract
The sterility line and maintainer line of Brassica napus,purple flowering stalk,Chinese cabbage CMS were used as materials to study their cross compatibility and distant heterosis.The results showed that there are certain hybridization affinities among the distant crosses of the three crops.The seed setting rates of the female parents of each cross combina-tions are between 52.34% ~92.46%,the hybridization affinity index is between 3.41 ~7.85,and there are high consis-tency between the seed setting rate of the female parent and hybridization affinity index.Comparing the hybridization affini-ty between different crops as female parents,the average affinity index of the Brassica napus was the highest,and that of the Chinese cabbage was the lowest.With the same parent,the cross compatibility of the sterility line as female parent is higher than the maintainer line as female parent.Among the varieties or lines in comparison tests,the ground vegetative yields of three combinations were higher than that of CK.The combinations of 608A ×RH03B and 608A ×JH01B are significantly increased than that of CK,they can be used as food or forage when combined the results of hybridization affinity.关键词
芸薹属作物/远缘杂交/杂交亲和性/杂种优势Key words
Brassica crop/distant hybridization/cross compatibility/heterosis分类
农业科技引用本文复制引用
杨学乐,陶芬芳,彭烨,何思敏..芸薹属作物远缘杂种优势研究[J].作物研究,2016,30(5):520-523,4.基金项目
国家科技支撑计划项目（2011BAD35B04）；国家“863”计划项目（2011AA10A104）。 （）
