摘要
为充分挖掘油菜耐渍种质资源,对来自油菜产业体系270份油菜资源在发芽期淹水处理12h,根据相对成苗率进行耐渍性评价。结果表明:油菜耐渍性遗传变异广泛,不同类型油菜品种的耐渍性存在明显差异。其中白菜型油菜的耐渍性比甘蓝型油菜强;常规种的耐渍性比杂交种强;长江下游的油菜品种比中、上游油菜品种的耐渍性要强,而中游地区油菜的耐渍性的遗传差异比下游丰富;春油菜的耐渍性比冬油菜强。因此,在耐渍性材料筛选中,可以根据特定的环境和生育期的要求相应地从中选择耐渍性强的材料用于耐渍育种。
To fully understand Brassica germplasm of waterlogging tolerance, 270 rapeseed materials from rapeseed industrial systems were evaluated for waterlogging tolerance based on relative survival rate （RSR） at germination stage after 12h of waterlogging. The results demonstrated rich genetic diversity of waterlogging tolerance, and the tolerance varied evidently among different types of varieties. The waterlogging tolerance of Brassica rapa was much stronger than that of Brassica napus. Varieties of rapeseed in downstream region of Yangtze River were more tolerant than those in upstream and midstream regions, and the tolerance was not significant between varieties of upstream and midstream regions. Waterlogging tolerance of spring rapeseeds was stronger than those of winter and semi -winter rapeseeds. Compared to hybrid rapeseeds, conventional rapeseeds showed better tolerance to waterlogging. Based on this study, waterlogging breeding lines could be selected according to specific environments and growth periods.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2014年第6期748-754,共7页
Chinese Journal of Oil Crop Sciences
基金
国家自然科学基金(31171589
31201244)
国家863计划项目(2011AA10A104)
中国博士后基金(2013M530081)
湖北省农业科技创新中心项目
关键词
白菜型油菜
甘蓝型油菜
发芽期
相对成苗率
耐渍性
Brassica rapa
Brassica napus
Germination stage
Relative survival rate
Waterlogging tolerance
