The appearance quality of flue-cured tobacco leafs of 14 main planted varieties in Yunnan Dali were analyzed by using the two-step cluster method. Based on the result, the appearance quality of flue-cured tobacco leafs were less affected by vary zoology spots and different varieties. The 100 samples of flue-cured tobacco leafs were divided into 3 clusters. This method defines the important characteristics in a cluster and the classification among types. The conclusion is objective, reasonable and reliable, coincided with the field performance of appearance quality of flue-cured tobacco leafs.
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胡建军,周冀衡,张建平,杨虹琦.两阶段聚类分析在烤烟外观质量评价中的应[J].农业机械学报,2009,40(6):143-146. of Two-step Cluster Analysis for Appearance Quality Evaluation of Flue-cured Tobacco[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(6):143-146.