中国农学通报2025，Vol.41Issue(23)：31-37,7.
不同亲本行比配置和母本摘薹对'佳油5号'制种产量和经济效益的影响
Effects of Different Parental Row Ratios Allocation and Topping on Yield and Economic Benefit of'Jiayou 5'Seed Production
摘要
Abstract
This research focused on optimizing the parental row ratio and developing suitable field cultivation techniques for hybrid rapeseed production,aiming to provide a theoretical foundation for advancing hybrid breeding technology.The experiment utilized a sterile line(716A)×restorer line(13R)hybrid combination in a two-factor split-plot design,to test six different parental row ratios along with two bolting-stage treatments(topping and non-topping).The results demonstrated that different parental row ratios significantly influenced both agronomic traits and seed production yield in rapeseed.Under single-row paternal line arrangements,seed yields followed the order:T12M1>T13M1>T14M1,whereas dual-row paternal configurations exhibited a different hierarchy:T26M1>T24M1>T28M1.The bolting-stage topping treatment significantly influenced rapeseed agronomic traits.Compared with the non-topped plants,topped specimens showed average reductions of 9.01%in plant height,60.03%in effective branching height,31.19%in primary branch number,and 25.02%in silique number on primary branches.Conversely,secondary branches demonstrated average increases of 28.08%in branch number and 50.52%in silique production.However,the total silique number per plant decreased by 7.03%on average,likely because the increased silique production on secondary branches failed to compensate for the reduction in primary branches.This was accompanied by an average decrease of 6.06%in seeds per silique,ultimately resulting in a 4.98%average reduction in hybrid seed production yield.Based on comprehensive evaluation of all indicators,the T26M1 treatment achieved the highest yield.In conclusion,under the experimental conditions set in this study,when the parent row ratio was configured at 2:6 and no bolting removal was applied to the female parent during the bud and bolting stage,both the seed production yield and economic benefits of rapeseed reached their optimal levels.关键词
油菜/亲本行比/摘薹/农艺性状/干物质积累/制种产量/经济效益Key words
rape/parental row ratio/topping/agronomic traits/dry matter accumulation/seed production yield/economic benefits分类
农业科技引用本文复制引用
徐菲菲,彭霄,左上歧,陈蓉,王佳婧,吴永成..不同亲本行比配置和母本摘薹对'佳油5号'制种产量和经济效益的影响[J].中国农学通报,2025,41(23):31-37,7.基金项目
德阳市科技计划项目"核不育三系杂交油菜制种高产配套关键技术研究与示范"(2022NZ025) （2022NZ025）
四川省农作物育种攻关栽培课题"油料新品种关键栽培技术创新与应用"(2021YFYZ0005) （2021YFYZ0005）
国家现代农业产业技术体系四川油菜创新团队"稻田油菜优质高效栽培"(SCCXTD-2024-03) （SCCXTD-2024-03）
四川省生物育种重大专项油菜项"绿色高效油菜重大新品种培育"(2022ZDZX0015). （2022ZDZX0015）
