安徽农业科学2012，Vol.40Issue(26)：12814-12815,12819,3.
黔东南冷凉山区优质稻农艺性状的相关性及通径分析
Correlation and Path Analysis of the Agronomic Traits of Good Quality Rice in Cold Mountain Area of South East Guizhou
摘要
Abstract
[Objective] The purpose was to study the correlation and path analysis of 12 main agronomic traits of good quality rice in cold mountain area of south east Guizhou. [Method] Twelve rice varieties were Linxian 22, Liangxian No. 3, Deshuang No. 4, Sweet rice 82, Sweet rice Deyou No. 8, Linxian 22, Zhongxian 2503 , Zhongxiang No. 1, Jianzhen No. 2, Changmi016, Ezhong No. 5, Diantun 502 (taking as control) respectively. The randomized block design was used with 3 repeated. Ten plants each plot were collected from beginning of the second plant of the second row, and observation items included plant height, panicle length, effective panicle, total grain number per panicle, filled grain number, 1 000-grain weight, setting rate and yield. [Result] There was very positive significant correlation between filled grain number and real yield and the correlation coefficient was 0.583 1, effective panicle, total grain number per panicle and setting rate had posi-tive significant correlation with real yield and the correlation coefficient was 0. 255 4,0. 548 9 and 0. 355 2 resp. . 1 000-grain weight and panicle length had negative significant correlation with real yield and the correlation coefficient was -0. 179 0 and -0. 555 8 resp. . The index that the direct contribution to real yield was the biggest was effective panicle and the direct path coefficient was 1.470 1 , followed by total grain number per panicle, 1 000-grain weight, filled grain number and setting rate and the direct path coefficient was 0.643 3, 0.627 4, 0.492 6 and 0.208 4 resp. . [Conclusion] The main goal was choosing moderate plant height, big panicle and more grain, moderate tillering number when choosing varieties and popularization in cold mountain area of south east Guizhou.关键词
优质稻/农艺性状/相关性/通径分析Key words
Good quality rice/Agronomic traits/Correlation/Path analysis分类
农业科技引用本文复制引用
潘宗东,张金明,杨桂兰,宋一江,石细敏..黔东南冷凉山区优质稻农艺性状的相关性及通径分析[J].安徽农业科学,2012,40(26):12814-12815,12819,3.基金项目
黔东南冷凉山区水稻超高产应用研究与示范[黔省专合字(2010)105] （2010）
黔东南州"十一五"优质稻种质资源创新项目. （）
