中国油料作物学报2016，Vol.38Issue(6)：778-787,10.DOI:10.7505/j.issn.1007-9084.2016.06.011
不同磷素籽粒生产效率类型油菜的物质生产及农艺性状
Agronomic characteristics of rapeseed (Brassica napus L.)in different phosphorus use efficiency for grain production
摘要
Abstract
To select high-efficient lines of rapeseed (Brassica napus L.),PUEg (phosphorus grain produc-tion efficiency)was measured.73 varieties (in 2006-2007)and 98 varieties (in 2007-2008)were used as ma-terials.Two nitrogen levels were set as 150kg/hm2 N and no N.Field experiments were conducted to determine the agronomic traits,dry weight and phosphorus content of different organs.The above varieties were classified into 5 types (A,B,C,D and E)based on PUEg by using MinSSw method.Agronomic characteristics,phosphorus accu-mulation and distribution of different types were studied.Results showed that:(1 )PUEg was not significantly cor-related with stem and shell weight,but was significantly correlated with grain weight.PUEg had negative correlation with the distribution rate of stem-and-branch weight to whole plant dry weight,and had positive correlation with the distribution rate of grain weight to whole plant dry weight.(2)PUEg had strong correlation with primary branch number,pod number and total seeds.The three traits could be used as a preliminary screening for high PUEg rape-seed lines.(3)Multiple stepwise regression analysis showed that the positive effect of grain weight on PUEg was the greatest.Stem-and -branch weight indirectly affected PUEg.Pod number,seed per pod and grain weight positively affected PUEg.Among them,Pod number had the greatest impact on PUEg.关键词
甘蓝型油菜/磷素籽粒生产效率(PUEg)/物质生产/农艺性状Key words
Rapeseed (Brassica napus L.)/Phosphorus use efficiency for grain production (PUEg)/Materi-al production/Agronomic traits分类
农业科技引用本文复制引用
杨光,冯云艳,张含笑,刘浩,冯倩南,朱庆洋,左青松,冷锁虎..不同磷素籽粒生产效率类型油菜的物质生产及农艺性状[J].中国油料作物学报,2016,38(6):778-787,10.基金项目
江苏高校优势学科建设工程；农业部农业技术试验示范（10162130106232120）；江苏省农业三新工程（SXGC［2016］319）；江苏省农机三新工程（NJ2015－26，NJ2014－28）；江苏省博士后基金 （）
