延迟播种对不同熟期类型油菜新品种产量及相关因子的影响  

Effect of Delayed Sowing on Yield and Related Factors of New Varieties of Oilseed Rape with Different Ripening Dates

作　　者：郭一鸣[1] 刘子禄 徐理佳 褚百凤 李莓[1] 周兴 唐树勇 曲亮[1] GUO Yi-ming;LIU Zi-lu;XU Li-jia;CHU Bai-feng;LI Mei;ZHOU Xing;TANG Shu-yong;QU Liang(Hunan Crop Research Institute,Changsha 410128,PRC;Agricultural Comprehensive Service Center of Niutian Town in Taojiang County,Taojiang 413413,PRC;Syngenta(China)Investment Co.,Ltd.,Shanghai 200126,PRC)

机构地区：[1]湖南省作物研究所,湖南长沙410128 [2]桃江县牛田镇农业综合服务中心,湖南桃江413413 [3]先正达(中国)投资有限公司,上海200126

出　　处：《湖南农业科学》2024年第7期25-29,共5页Hunan Agricultural Sciences

基　　金：油菜产业关键技术研究与应用示范(2021YFD1600500);湖南省油菜产业技术体系。

摘　　要：为了探索湘东地区延迟播种对不同熟期类型油菜品种产量及相关因子的影响,选择湖南省主推的早熟型沣油112、中早熟型捷油8848、中熟型沣油789油菜新品种在浏阳北盛镇开展3个播期的生产试验。结果表明,3个播期的不同熟期品种均能于4月下旬至5月上旬成熟;3个品种M1、M2的生育期相同,而M3的熟期延迟5~7 d,其中捷油8848的3个播期生育期及积温与沣油789的相同;随着播期的推迟,各品种的株高、一次有效分枝数、有效角果数呈下降趋势;3个播期的平均单产M1低于预期、M2最高,M3最低;3个不同熟期类型品种,中熟型沣油789受播期延迟影响较大,产量水平随播期延迟而显著下降,中早熟型捷油8848对播期延迟的敏感性未达到显著水平,而早熟型沣油112以M2的产量水平最高,显著高于M1和M3。In order to explore the effect of delayed sowing on the yield and related factors of oilseed rape with different ripening dates in eastern Hunan Province,the early maturity type of Fengyou 112,mid-early maturity type of Jieyou 8848,and mid-maturity type of Fengyou 789 oilseed rape varieties,which were promoted in Hunan Province,were selected for production testing of three sowing dates in Beisheng Town,Liuyang City.The results show that the varieties sown at three different dates can mature from late April to early May.The growth periods of the varieties M1 and M2 are the same,while the ripening date of M3 is delayed by 5–7 d.The growth period and accumulated temperature of Jieyou 8848 sown at three different dates are the same as those of Fengyou 789.With the delay of the sowing date,the plant height,the number of effective branches,and the number of effective siliques of each variety decrease.The average yield of M1 sown at three different dates is below expectation,and that of M2 is the highest,while the average yield of M3 is the lowest.Among the three varieties with different ripening dates,Fengyou 789 is significantly affected by delayed sowing,and its yield decreases significantly with the delay of the sowing date.Jieyou 8848 does not have a significant sensitivity to delayed sowing,and M2 of Fengyou 112 has the highest yield,which is significantly higher than M1 and M3.

关 键 词：延迟播种 熟期 产量 相关因子 油菜 

分 类 号：S565.4[农业科学—作物学]