45个杂交稻品种油后直播产量性状的相关分析与通径分析  

Correlation analysis and path analysis of yield traits of 45 hybrid rice varieties direct seeding after rape harvest

作　　者：马鹏[1] 陶诗顺[1] 余康宁[1] 段转宁 胥伟秋 岳彩萍[1] 

机构地区：[1]西南科技大学生命科学与工程学院,绵阳621000

出　　处：《上海农业学报》2016年第4期42-44,共3页Acta Agriculturae Shanghai

基　　金：国家"十二五"科技支撑计划重大项目:国家粮食丰产科技工程--四川盆地水稻丰产节水节肥技术集成与示范(2013BAD07B13)

摘　　要：通过田间试验对45个杂交稻品种油后直播产量性状相关性进行了研究。结果表明:油后直播杂交稻的有效穗与总粒数、实粒数、千粒重,总粒数与结实率、千粒重等性状间呈显著负相关;有效穗与产量呈显著正相关,总粒数与实粒数,结实率与千粒重等性状间呈显著正相关。通径分析表明,总粒数对产量的贡献最大。The correlation of yield traits of 45 hybrid rice varieties direct seeding after rape harvest was studied by field experiment.The results showed that there were significant negative correlation between effective panicle and grain number,filled grain number,1 000-grain weight,grain number and seed setting rate,1 000-grain weight;there were significant positive correlation between grain number and filled grain number,seed setting rate and 1 000-grain weight;and there was significant positive correlation between effective panicle and yield.Path analysis showed that grain number had the largest contribution to yield.

关 键 词：直播 杂交稻 产量性状 相关分析 通径分析 

分 类 号：S511.04[农业科学—作物学]