中国油料作物学报2025，Vol.47Issue(1)：37-44,8.DOI:10.19802/j.issn.1007-9084.2023276
油菜花期耐寒性的快速鉴定及耐寒新种质筛选
Rapid identification of cold tolerant rapeseed during flowering stage and screen for new resistant germplasms
摘要
Abstract
In recent years,due to the delayed harvest time of rice in China,the sowing date of rapeseed has been continuously postponed,making it more difficult for seeds to germinate under low temperatures.The main rapeseed production areas in the Yangtze River Basin often experience"cold spell in later spring"weather,which seriously endangers the flowering and pollination of rapeseed,reduces seed setting rate,and leads to a serious reduc-tion in rapeseed production.The development of new rapeseed varieties that can quickly germinate under low tem-perature conditions and tolerate low temperature during flowering has become one of the key issues that urgently need to be solved for rapeseed production.Based on 49 early maturation breeding backbone resources screened pre-viously,we further identified rapeseed germplasm that can germinate under 8℃low-temperature in this study.The speed breeding growth chamber was employed to promote rapeseed flowering and a rapid method for assessing low temperature tolerance during flowering was established.Two new early maturation rapeseed varieties with low tem-perature tolerance both at flowering and germination stages were screened using this technology.关键词
油菜/耐低温/耐寒/冬闲田Key words
Brassica napus/low temperature tolerance/cold resistance/winter fallow field分类
农业科学引用本文复制引用
温运飞,李一林,郝梦宇,张茹佳,梅德圣,胡琼,成洪涛,王会..油菜花期耐寒性的快速鉴定及耐寒新种质筛选[J].中国油料作物学报,2025,47(1):37-44,8.基金项目
科技创新2030重大项目(2022ZD04009) （2022ZD04009）
中国农业科学院基本科研业务费(1610172020001) （1610172020001）
国家农业现代产业技术体系建设专项(CAR-13) （CAR-13）
