核农学报2024，Vol.38Issue(5)：833-841,9.DOI:10.11869/j.issn.1000-8551.2024.05.0833
强冬性和春性甘蓝型油菜变种间杂种优势分析
Analysis of Heterosis between Strong Winter and Spring Varieties of Brassica napus L.
摘要
Abstract
In order to study the heterosis performance of the hybrid combinations between strong winter rapeseed and spring rapeseed.Eight strong winter rapeseed cultivars and four spring rapeseed cultivars were selected and combined,and the heterosis of F1 were analyzed.The results showed that the growth period of F1 in winter×spring combination was significantly shorter than that of winter parents.In the winter×spring combination,strong heterosis of plant height,branch position,main inflorescence length,silique length and effective silique number per plant were detectable,especially heterosis of silique length(over-parent heterosis:10.61%,index of heterosis:128.81%)and effective silique number per plant(over-parent heterosis:17.31%,index of heterosis:143.92%).Combining the hybrids performance and heterosis,it is shown that the intervarietal crossing of Brassica napus had more obvious heterosis than the intraspecific crossing,and the over-parent heterosis and index of heterosis of the agronomic traits such as silique length and effective silique number per plant were the highest.The results of this study provided a basis for the study and utilization of hybrid advantages among varieties of Brassica napus L.关键词
甘蓝型油菜/杂种优势/变种间杂种/农艺性状Key words
Brassica napus L./heterosis/intervarietal hybrid/agronomic character引用本文复制引用
王莹,郑国强,董小云,李辉,魏家萍,崔俊美,武泽峰,刘自刚..强冬性和春性甘蓝型油菜变种间杂种优势分析[J].核农学报,2024,38(5):833-841,9.基金项目
甘肃省科技重大专项(22ZD6NA009),省部共建干旱生境作物学国家重点实验室主任基金(GSCS-2021-Z01),甘肃省教育厅产业支撑计划项目(2021CYZC-46),甘肃省教育厅青年博士基金项目(2021QB-035) （22ZD6NA009）
