首页 | 本学科首页   官方微博 | 高级检索  
     检索      

水稻产量与株型性状的相关及通径分析
引用本文:李强,王敬国,安光日,张明,邹德堂,崔成焕,王凤义,韩龙植.水稻产量与株型性状的相关及通径分析[J].中国农业科技导报,2008,10(4):48-55.
作者姓名:李强  王敬国  安光日  张明  邹德堂  崔成焕  王凤义  韩龙植
作者单位:[1]东北农业大学农学院,哈尔滨150030 [2]内蒙古呼伦贝尔市农业科学研究所,内蒙古扎兰屯162650 [3]黑龙江省农业科学院经济作物研究所,哈尔滨150030 [4]中国农业科学院作物科学研究所,国家农作物基因资源与基因改良重大科学工程,农业部作物种质资源与生物技术重点开放实验室,北京100081
基金项目:作物种质资源保护项目,科技部科技基础条件平台建设计划
摘    要:利用5个杂交组合的F1、F2代及其亲本为试验材料,调查了25个水稻茎叶及穗部性状。试验结果表明,产量与株高、分蘖数和倒二叶长、剑叶长和倒三叶张角呈极显著或显著的正相关;与穗曲度、穗长、穗重、二次枝梗优势节位、一次和二次枝梗粒数、千粒重、一次枝梗和二次枝梗结实率均呈极显著或显著的正相关。株高、分蘖数、二次枝梗粒数、一次枝梗结实率和二次枝梗结实率对产量产生较大的直接效应,而其他性状对产量的直接效应小。以株高、分蘖、穗重、二次枝梗结实率、二次枝梗优势节位等5个性状所构建的选择指数,对产量有较高的选择效率。

关 键 词:水稻  株型  产量  相关  通径  选择指数  
收稿时间:2008-05-12
修稿时间:2008-06-11

Correlation and Path Coefficient Analysis between |Grain Yield and Traits of Plant Type in Rice
LI Qiang,WANG Jing-guo,AN Guang-ri,ZHANG Ming,ZOU De-tang,CUI Cheng-huan,WANG Feng-yi,HAN Long-zhi.Correlation and Path Coefficient Analysis between |Grain Yield and Traits of Plant Type in Rice[J].Journal of Agricultural Science and Technology,2008,10(4):48-55.
Authors:LI Qiang  WANG Jing-guo  AN Guang-ri  ZHANG Ming  ZOU De-tang  CUI Cheng-huan  WANG Feng-yi  HAN Long-zhi
Abstract:Twenty five traits associated with straw and leaf and panicle were evaluated, by using F1 and F2 derived from five combinations and their parents. Theresult showed that the yield were positively and significantly at 0.01 or 0.05 level correlated with the plant height, tillers per plant, last second leaf length, flag leaf length and last third leaf opening angle; and the yield were positively and significantly at 0.01 or 0.05 level correlated with the shape of panicle, panicle length, panicle weight, sitting of most second branch, spikelet of first and second branch, 1 000 grain weight, seed settingrate of first and second branch. Plant height, tillers per plant, spikelet of second branch, seed setting rate of first and second branch have exerted direct effect on yield, while the other traits have smaller effects on yield. Constructing a selection index by plant height, tillers per plant, panicle weight, seed setting rate of second branch, the dominant node with the most of second branch, can enhance the selection efficiency to yield.
Keywords:rice  plant type  yield  correlation  path coefficient  selection index
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《中国农业科技导报》浏览原始摘要信息
点击此处可从《中国农业科技导报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号