甘蓝型油菜主要农艺性状与产量构成相关性分析  

Correlation Analysis between Main Agronomic Traits and Yield Composition of Brassica napus

作　　者：戴祥来 赵继献[1] 向阳[1] 胡权 周炜华 DAI Xianglai;ZHAO Jixian;XIANG Yang;HU Quan;ZHOU Weihua(Rape Research Institute of Guizhou,Guiyang 550081,China)

机构地区：[1]贵州省油菜研究所,贵阳550081

出　　处：《四川农业大学学报》2024年第5期1036-1048,共13页Journal of Sichuan Agricultural University

基　　金：贵州省油菜现代农业产业技术体系建设项目(GZCYTX2022-0802);贵州省科技计划项目[黔科合支撑(2020)1Y106];国家重点研发计划[2016YFD0100202-11];贵州科技创新基地建设项目[黔科合中引地(2023)033]。

摘　　要：【目的】为建立甘蓝型油菜理想株型,系统分析了油菜主要农艺性状与产量构成因素间的相关性。【方法】2017—2019年度连续2年试验种植600份来源于主要生态区域的甘蓝型油菜种质资源材料,采集主要农艺性状指标,分析各性状与实收产量间的相关性。【结果】油菜一次分枝数、主序角果数、单株产量与实收产量间呈直线回归关系,其余性状与实收产量间呈一元二次回归关系,且各性状与产量间均呈极显著正相关。角粒数对单株产量和实收产量的贡献最大。【结论】依据各性状与实收产量间的回归关系求极值,得出其理想株型,理想单株产量约为24.21 g,理论产量可达314.73 kg/667 m2。【Objective】To obtain the ideotype of Brassica napus,the correlation between main agronomic traits and yield components was studied.【Method】From 2017 to 2019,600 germplasm resource materi⁃als from major ecological areas were planted for two consecutive years,and main agronomic traits were collected to analyze the correlation between each trait and actual yield.【Result】The results showed that,there was a linear regression relationship between primary branch number,main sequence pod number,yield per plant and actual yield,and a quadratic regression relationship between other traits and actual yield.All the exhibited a significant positive correlation with yield.Among them,the number of seeds per pod contributed the most to the yield per plant and the actual yield.【Conclusion】According to the regression relationship between the traits and the actual yield,an ideotype was obtained.The yield per plant for this ideotype was about 24.21 g,with a theoretical yield was 314.73 kg/667 m^(2).

关 键 词：甘蓝型油菜 农艺性状 产量构成因素 理想株型 

分 类 号：S565.4[农业科学—作物学]