Principal Component and Cluster Analysis for Agronomic Traits of 73 RiceMain Restorers Lines in Asia
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The National High Technology Research and Development Program of China (863 Program)

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    Abstract:

    In order to provide theoretical basis on useing of foreign restore resources in rice breeding.73 rice restorers resources which were collected in Asia, the test in two environments include Sichuan province Deyang and Luzhou. Principal component and cluster analysis were conducted based on agronomic traits such as plant height,tillers per plant,1000-grain weight,biomass per plant,grain yield per plant,seed setting rate,filled spikelets per panicle,spikelets per panicle,grain yield per daily,harvest index.The results showed that the 11 agronomic traits were composed of 5 independent principal component,wich include grain yield factor,biomass fator,tiller factor ,grain weight factor.4 principal components could present 87.640%(Deyang) and 88.861%(Luzhou)information of the raw data. Through cluster analysis baised on 4 principal components ,73 rice restorers resources were cluster 4 group in two environments.In Ⅰ group, which 60.71% of the restorers resources from China , that characters of clusterⅠ were heavy grain weight, heighter plant height , better yield. In Ⅱ group, which 45.45% of the restorers resources from India , that characters of clusterⅡ were light grain weight, better grain yield and harvest index. Three clusters had obvious feature ,cluster analysis result were Generally agree with local origin. Key words: Asia; Restorers Lines; agronomic traits; Principal Component Analysis ;Cluster Analysis.

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History
  • Received:April 10,2014
  • Revised:November 05,2014
  • Adopted:February 03,2015
  • Online: February 03,2015
  • Published:
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