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兩階段聚類分析在烤煙外觀質(zhì)量評價中的應(yīng)
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of Two-step Cluster Analysis for Appearance Quality Evaluation of Flue-cured Tobacco
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    摘要:

    應(yīng)用兩階段聚類法對云南省大理州14個主栽烤煙品種C3F和C3L 2個等級的中部煙葉外觀質(zhì)量進(jìn)行聚類分析，并應(yīng)用多元方差分析對聚類效果進(jìn)行了檢驗。結(jié)果表明，產(chǎn)地和品種對烤煙外觀質(zhì)量的影響較小，并將100 個烤煙樣品外觀質(zhì)量分為3 個類型；明確了各類型煙葉外觀質(zhì)量的重要性狀、變異特點和類型間的分類特性；其聚類分析結(jié)果與烤煙外觀質(zhì)量的實際表現(xiàn)相吻合，因而兩階段聚類分類結(jié)果客觀、合理、準(zhǔn)確、可靠。

    Abstract:

    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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胡建軍,周冀衡,張建平,楊虹琦.兩階段聚類分析在烤煙外觀質(zhì)量評價中的應(yīng)[J].農(nóng)業(yè)機(jī)械學(xué)報,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.

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