烤烟物理特性与化学成分的典型相关分析
anonical correlation analysis between physical properties and chemical components of flue-cured tobacco
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摘要: 为探索烤烟物理特性与化学成分的关系,检测了92种河南烤烟样品的6项物理指标和7项常规化学成分,并进行了简单相关分析和典型相关分析.结果表明: 1)填充值与总糖、还原糖呈极显著负相关,与总氮、氯呈极显著或显著正相关;叶片厚度与总植物碱、总氮、氯呈极显著正相关,与总糖、还原糖呈极显著负相关;叶面密度与总植物碱、总氮呈极显著正相关,与总糖、还原糖呈极显著负相关;阴燃时间与还原糖、氯呈极显著或显著负相关;抗张强度与总植物碱、总氮、氯呈极显著或显著负相关,与总糖呈极显著正相关;平衡含水率与总糖、还原糖呈极显著正相关,与总植物碱呈极显著负相关.典型相关分析结果与简单相关分析基本一致,相关性显著的3对典型变量间的典型相关系数分别为0.817,0.538,0.524. 2)影响烤烟物理特性的常规化学成分主要有总植物碱、总糖、还原糖、总氮和氯,钾和淀粉的影响较小.Abstract: To explore the relationship between physical properties and chemical components about flue-cured tobacco,six physical properties and seven normal chemical components of 92 flue-cured tobacco samples were detected and these data were analyzed by simple correlation analysis, canonical correlation analysis and path analysis.The results showed as follows:1) value had significant negative correlation with total sugar and reducing sugar filling,and had significant extremely positive correlation with total nitrogen and chlorine;leaf thickness had significant extremely positive correlation with total alkaloid, total nitrogen and chlorine;had significant negative correlation with total sugar and reducing sugar;leaf density had significant extremely positive correlation with total alkaloid and total nitrogen, had significant extremely negative correlation with total sugar and reducing sugar;chlorine had extremely or significant extremely negative correlation with reducing sugar and smoldering time;tensile strength had extremely or significant negative correlation with total alkaloid, total nitrogen and chlorine, had significant extremely positive correlation with total sugar;equilibrium moisture content had significant extremely positive correlation with total sugar, had significant extremely positive correlation total alkaloid and reducing sugar.The results of canonical correlation analysis was consistent with the simple correlation analysis,and the canonical correlation coefficients of three pairs of canonical variables were 0.817, 0.538, 0.524 respectively.2) Total sugar, total alkaloid, reducing sugar, total nitrogen and chloride were closely related potassium and starch less with physical characteristics in routine chemical components.
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Key words:
- flue-cured tobacco /
- physical property /
- chemical components /
- canonical correlation
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