2016—2017年湖北省油菜区试品种（系）产量成因性状分析  

Study on the genetic characteristics of the yield of the test variety(line)in the rape area in Hubei province from 2016 to 2017

作　　者：谢雄泽 谢捷 尹羽丰[1] 张清伟[1] 白桂萍[1] XIE Xiong-ze;XIE Jie;YIN Yu-feng;ZHANG Qing-wei;BAI Gui-ping(Xiangyang Academy of Agricultural Science,Xiangyang 441057,Hubei,China)

机构地区：[1]襄阳市农业科学院

出　　处：《湖北农业科学》2019年第24期38-42,共5页Hubei Agricultural Sciences

摘　　要：为探明各农艺性状对湖北省油菜(Brassica napus L.)产量的影响,对2016-2017年湖北省油菜区域试验的参试品种(系)产量及各农艺性状进行统计分析。结果表明,湖北地区油菜品种(系)在理想株型的选择方面虽受限于株高但仍具有较大的选择空间;通过主成分分析将油菜相关性状进行归类,确定每角粒数为影响油菜产量的主要因素;通过多重线性回归分析构建了湖北省油菜产量预测模型,确定了产量构成三要素与产量之间的线性关系;通过相关性分析和通径分析发现,除株高和生育期外的农艺性状均对油菜产量有直接的正面影响;分枝部位对有效角果数有促进作用,分枝数对有效角果数和每角粒数有促进作用,但会抑制千粒重;而产量构成三因素之间则存在明显的相互抑制作用,但对产量贡献最大的为每角粒数。In order to find out the influence of various agronomic traits on the yield of rape(Brassica napus L.) in Hubei province, the statistical analysis of yield and agronomic traits of tested varieties in the rape regional trials in Hubei province from 2016 to 2017. The results show that the rape varieties(lines) in Hubei province are limited by plant height but still have a large selection space for the selection of ideal plant types. Principal component analysis was used to classify the traits of rape, and the number of horns per leaf was determined as the main factor affecting yield. Multiple linear regression analysis was used to construct a prediction model of rape yield in Hubei province, a linear relationship between the three components of production and production was determined. Correlation analysis and path analysis showed that agronomic traits except plant height and growth period have a direct positive impact on rape yield. The branch site promotes the number of effective pods, and the number of branches promotes the number of effective pods and the number of pods per pod, but inhibits thousand-grain weight. There is a significant mutual inhibition between the three factors of yield composition, but the largest contribution to yield is the number of grains per horn.

关 键 词：油菜(Brassica napus L.) 产量 农艺性状 主成分分析 多重线性回归分析 相关性分析 通径分析 

分 类 号：S565.4[农业科学—作物学]