中国油料作物学报2023，Vol.45Issue(6)：1227-1237,11.DOI:10.19802/j.issn.1007-9084.2022204
冬灌处理对河北冬油菜关键性状的影响
Effects of winter irrigation treatment on key characteristics of winter rapeseed in Hebei
摘要
Abstract
To guide significance for water management of winter rape in Hebei Province,effect of pre-winter ir-rigation on yield formation of winter rapeseed was studied.Materials included 12 winter Brassica rapa and 9 B.na-pus varieties(lines),they were irrigated before winter.The traits were investigated including overwintering rate,contents of N,P and K in leaves and siliques,and yield composition.Results showed that winter irrigation effective-ly prevented freezing injury of rapeseed,increased the overwintering rate,and then improved later growth,agronom-ic characteristics and yield formation.The overwintering rate reached more than 90%,significantly higher than non-winter irrigation control.Although winter irrigation treatment had no significant effect on growth duration,it signifi-cantly improved agronomic traits of branch length,plant height and plot yield by 33%,90.3%and 16.9%respective-ly.The contents of N and P in leaves,and K in silique shell of 6 tested winter rapeseed were higher than the other organs.关键词
冬油菜/白菜型油菜/甘蓝型油菜/冬灌/越冬率/农艺性状/产量Key words
winter rapeseed/Brassica rapa L./Brassica napus L./winter irrigation/over-wintering rate/ag-ronomic characteristics/yield分类
农业科技引用本文复制引用
李积铭,李和平,陶肖蕾,武军艳,孙万仓,李学才,翟兰菊,马骊,李爱国..冬灌处理对河北冬油菜关键性状的影响[J].中国油料作物学报,2023,45(6):1227-1237,11.基金项目
河北农林科学院科技创新专项(2022KJCXZX-HZS-5) （2022KJCXZX-HZS-5）
国家油菜产业技术体系(CARS-12) （CARS-12）
