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《Acta Prataculturae Sinica》 2010-01
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A study on morphological variation of germplasm resources of Ophipogon japonicus in the Sichuan basin

LIU Jiang,CHEN Xing-fu,YANG Wen-yu,WEN Jun,YANG Xia,CHEN Jia,WANG Feng(College of Agronomy,Sichuan Agricultural University,Ya'an 625014,China)  
Morphological variation of germplasm resources of Ophipogon japonicus in the Sichuan basin was studied.There were extensive variations in morphology with the most significant variance in fresh root weight,dry root weight,fresh leaf weight,and dry leaf weight.The least significant variance lay in root length and leaf length.Morphological characteristics of O.japonicus have significant relationships.The results of principal component analysis and cluster analysis showed that the first principal component reflected characteristics of plant quantity,the second principal component reflected characteristics of stem leaf,and the third principal component reflected characteristics of earthnut.All of these were main factors resulting in morphological variation of O.japonicus.Cluster analysis based on the morphological characters showed that the 26 germplasm resources of O.japonicus in the Sichuan basin could be divided into four types.The different principal components among the types of O.japonicus were obvious and it is possible to select specific samples from the wide resources of wild O.japonicus according to the different needs of development and utilization.
【Fund】: 四川省育种攻关项目(No.2006yzggl2-12)资助
【CateGory Index】: S567.232
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