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KMID : 0613820030130030343
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Journal of Life Science
2003 Volume.13 No. 3 p.343 ~ p.348
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Assessment and Classification of Korean Indigenous Corn Lines by Application of Principal Component Analysis
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Lee In-Sub
Park Jong-Ok
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Abstract
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This study was conducted to get basic information on the Korean local corn line collected from Busan City and Kyungnam Province, a total of 49 lines were selected and assessed by the principal component analysis method. In the result of principal component analysis for 7 characteristics, 67.4% and 86.3% of total variation could be appreciated by the first two and first four principal components, respectively. Contribution of characteristics to principal component was high at upper principal components and low at lower principal components. Biological meaning of principal component and plant types corresponding to the each principal component were explained clearly by the correlation coefficient between principal component and characteristics. The first principal component appeared to correspond to the size of plant and ear, and the duration of vegetative growing period. The second principal component appeared to correspond to the number of ear and tiller. But the meaning of the third and fourth principal components were not clear.
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KEYWORD
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Korean local corn line, principal component analysis, characteristics
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