杂交油菜蓉油3号经济性状的相关和通径分析  

CORRELATIONSHIP AND PATH ALALYSIS ON THE ECONOMIC CHARACTERISTICS OF HYBRID OIL SEED RAPE─RONGYOU NO.3

作　　者：袁继超[1] 牛应泽[1] 范巧佳[1] 

机构地区：[1]四川农业大学农学院

出　　处：《四川农业大学学报》1998年第4期419-424,共6页Journal of Sichuan Agricultural University

摘　　要：本文就不同土壤肥力、不同种植密度和施肥水平下控制性试验结果，分析了杂交油菜蓉油３号各产量构（组）成因素与产量的相关关系及其对产量贡献的大小以及经济产量、生物产量和经济系数与主要农艺性状之间的相关性。结果表明种植密度与单株产量同等重要，单株产量构成因素中以角果数贡献最大，其次为每果粒数；在产量组成中一次分枝的贡献最大，其次为主花序；有效分枝数与产量呈正相关，分枝高度与产量呈负相关，株高与生物产量呈正相关，与经济产量不相关。Based on the data of several experiments, the correlationship and path analysis on the economic characteristics of hybrid oilseed rape─Rongyou No.3 are studied. The results are as follows: The direct path and partial correlation coefficients of planting densities and yield per plant to the yield per area are almost the same. Among the yield components of a single plant, the No. of effective siliquae is of the most importance, with the No. of seeds per siligua the second and the weight of 1000 seeds the third. The contribution of the yield of the first branches to the total plant is the greatest, with the main infloresence the second and the second branches the third. The positive correlationship between yield and No. of effective branches and negative correlationship between yield and braching height are found. There are positive correlationship between bio mass and plant height, without significant correlationship between seeds yield and plant height.

关 键 词：油菜 经济性状 相关分析 通径分析 蓉油3号 

分 类 号：S565.401[农业科学—作物学]