| 摘要: |
| 【目的】建立一种符合烟叶化学成分综合评价的方法，以探讨陕南烟区烟草化学品质的优劣，为陕南烟区选择优良的烟草品种提供理论依据。【方法】对陕南烟区代表性区域（商洛市洛南县、安康市旬阳县和汉中市洋县）的主栽烟草品种（云烟87、云烟97、秦烟96和K326）上、中部叶片分别进行取样测定，之后采用隶属函数法和因子分析法对各指标数据进行转化和分析，最终对陕南烟区烟草化学品质进行综合评价和排序。【结果】陕南不同地区烟叶化学成分经隶属函数法转换后进行因子分析，提取了4个公因子，分别为钾氯 氮碱比因子、糖碱因子、还原糖 两糖比因子和氮因子。因子综合得分结果表明，在陕南三县，旬阳县云烟87的上部叶化学品质最好；旬阳县K326品种在三县主栽品种中化学品质最好；旬阳县、洋县、洛南县主栽品种中化学品质最好的分别为K326、秦烟96和秦烟96。【结论】结合隶属函数法的因子分析法可以用于烟草化学成分综合分析；在陕南烟草中，旬阳县更加适合烟叶优良品质的形成，其中以K326、云烟97和云烟87较优。 |
| 关键词: 烟草 隶属函数法 因子分析法 综合评价 |
| DOI： |
| 分类号: |
| 基金项目:陕西省烟草公司科技项目（KJ-2011-01） |
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| Comprehensive evaluation and analysis of chemical compositions of main cultivated tobacco varieties in South Shaanxi |
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| Abstract: |
| 【Objective】The objective of this study was to establish a comprehensive method to evaluate tobacco chemical constituents,assess tobacco chemical quality and guide the selection of tobacco varieties in South Shaanxi.【Method】Middle and upper leaves of main tobacco varieties (Yunyan 87,Yunyan 97,Qinyan 96 and K326) in representative regions (Luonan County of Shangluo City,Xunyang County of Ankang City,Yang County of Hanzhong City) in South Shaanxi Province was sampled and determined.Then the collected data were converted using the subordination function method and statistically analyzed using the factor analysis.At last,tobacco chemical quality was comprehensively evaluated and sorted.【Result】 Four factors,namely potassium chlorine-total nitrogen/nicotine factor,total sugar nicotine factor,reducing sugar-reducing sugar/total sugar factor,and total nitrogen factor were extracted.Factor comprehensive scores showed that upper leaves of Yunyan 87 in Xunyang County had the best chemical quality in South Shaanxi,and K326 in Xunyang County was the best tobacco variety.The best tobacco variety in Yang County and Luonan County was Qinyan 96.【Conclusion】Factor analysis combined with subordination function method could be a method of chemical composition comprehensive analysis of tobacco leaves.Xunyang County was more suitable for tobacco fine quality formation in South Shaanxi,and K326,Yunyan 97 and Yunyan 87 were good varieties in Xunyang County. |
| Key words: tobacco subordination function method factor analysis comprehensive evaluation |
