中国油料作物学报2025，Vol.47Issue(2)：402-412,11.DOI:10.19802/j.issn.1007-9084.2024039
环渤海区域耐盐碱冬油菜品种全生育期鉴定筛选
Identification and screening of saline-alkali tolerant winter Brassica rapa L.cultivars during whole growth stage in the Bohai Rim Region
摘要
Abstract
To promote production of winter rapeseed in the coastal saline-alkali land around the Bohai Bay,salt tolerance of rapeseed was identified,and salt tolerance indicators were screened.Saline-alkali tolerant lines and saline-alkali tolerance indexes of 20 strong cold-resistant winter Brassica rapa L.materials were identified and screened by variance analysis,correlation analysis and cluster analysis on 9 traits during the whole growth period.Results revealed that saline-alkali stress significantly affected seedling rate and overwintering rate of the materials,significantly inhibited their growth and yield.Significant differences in various identification indicators were found among the materials.Under saline-alkali stress,their relative seed yield was positively related with traits as RSR(relative seedling rate),RRSR(relative root to shoot ratio),RNPB(relative number of primary branches),RNES(rel-ative number of effective siliques per plant),and 1000-RSW(relative 1000-seed weight);and was significant posi-tive related with RWSR(relative winter survival rate)and RSNP(relative seed number per silique).Clustering analy-sis results showed that 20 materials could be divided into 4 levels of saline-alkali resistance,including high salt al-kali resistance(Level Ⅰ),relatively salt alkali resistance(Level Ⅱ),weak salt alkali sensitivity(Level Ⅲ),and high salt alkali sensitivity(Level Ⅳ).Through a comprehensive evaluation,6 cultivars and lines,including Hengyou 6,16RTS309 rotation 6,16QD-15 rotation 8,Hengyou 8,JR6 and H614,were indentified as suitable for coastal sa-line-alkali soil of Hebei Province,by evaluating traits of seedling rate,overwintering rate,agronomic and economic traits.In conclusion,it was suggested that 9 indexes could be taken on identification of saline-alkali tolerant for winter Brassica rapa,including RSR,RWSR,RRSR,RPH(relative plant height),RNPB,RNES,RSNP,1000-RSW and RSY(relative seed yield).关键词
白菜型冬油菜/全生育期/环渤海区域/耐盐碱指标Key words
winter Brassica rapa L./whole growth period/the Bohai Rim Region/saline-alkali resistance index分类
农业科技引用本文复制引用
李积铭,李爱国,李和平,管明威,武军艳,孙万仓,翟兰菊,马骊,郭安强..环渤海区域耐盐碱冬油菜品种全生育期鉴定筛选[J].中国油料作物学报,2025,47(2):402-412,11.基金项目
河北农林科学院科技创新专项(2022KJCXZX-HZS-5) （2022KJCXZX-HZS-5）
河北省现代农业产业技术体系(HBCT2023030203) （HBCT2023030203）
国家油菜产业技术体系(CARS-12) （CARS-12）
