干旱地区农业研究Issue(4)：291-296,6.DOI:10.7606/j.issn.1000-7601.2015.04.44
白菜型冬油菜和春油菜杂交后代抗寒性与植物学特性
Cold resistance and botanical characteristics of the hybrid prgeny between winter and spring turnip rapes (Brassica campestris L .)
摘要
Abstract
This study had carried on the preliminary analysis and research on temperature sensitivity (winterness and springness ) ,botanical characteristics , and overwintering rates of filial generations for hybrids between winter type turnip rape (Brassica rapa ,Longyou7 and Longyou9 strong in cold hardiness ) and spring type turnip rape (Brassica ra-pa ,Parkland) .The results showed that all of the F1 generation from hybridization between Longyou7 ,Longyou9 and Parkland presented winterness ,which meant winterness was dominant .And the winterness and springness were separated in F2 and BC1 generations .The separation ratio within F2 generation was 4∶1 and the ratio within BC1 generation when Parkland was used as the recurrent parent was 1∶1 .When Longyou7 and Longyou9 were used as the recurrent parents , the separate ratio was 4∶1 .Additionally ,while wintering rates were used as the indexes of cold hardiness ,the results in-dicated that cold resistance of filial generations from Longyou7 and Parkland was stronger than that from Longyou9 and Parkland ,which was consistent with winterness of parents .The cold resistance strength for each generation was in the following order :BC1 with winternss as recurrent parents>F2>F1>BC1 with springnss as recurrent parents .Moreover , correlation and grey correlation analyses showed that overwintering rates were closely related with the main biological char-acteristics ,and the related degree was as the follows :heart leaves>growth habit>winter and spring sex> leaf color . The analysis results showed that the plant morphological characteristics had close relations with cold hardiness .Generally speaking ,seedlings with purple heart leaves ,light green or dark green leaves ,and prostrate or erect growth ,were likely to possess the large wintering rates and strong cold resistance .关键词
白菜型油菜/杂交后代/冬春性/生物学特性/灰色关联Key words
turnip rape ( Brassica campestris L .)/filial generations/winterness and springness/botanical charac-teristics/grey correlation分类
农业科技引用本文复制引用
王丽萍,杨宁宁,刘自刚,方彦,武军艳,杨刚,孙万仓,张正丽,王月,董红业,赵艳宁,孔德晶,鲁美宏..白菜型冬油菜和春油菜杂交后代抗寒性与植物学特性[J].干旱地区农业研究,2015,(4):291-296,6.基金项目
国家“863”高技术研究发展计划（201110104）；国家“973”重点基础研究发展计划（2015CB150206）；国家公益性行业（农业）科研专项（200903002－04；现代农业产业技术体系建设专项（CRS －13）；国家自然基金（31460356）；国家农业科技成果转化项目 （）
