河南烤烟主产区烟叶物理性状的分析评价

对河南5个烟区(许昌、洛阳、南阳、三门峡和信阳)、3个等级(B2F、C3F、X2F)共计15个烤烟样本的主要物理性状进行了分析评价,并与巴西、津巴布韦烤烟比较。结果表明:河南烤烟普遍存在叶片厚度、单叶重和叶质重较低,填充值和含梗率较高等问题。上部叶,以洛阳和三门峡的烟叶与进口烟叶的关联度较大,综合性状较好;中部叶,以许昌、洛阳的烟叶与进口烟的关联度较大,综合性状较好;下部叶,以南阳和三门峡的烟叶与进口烟叶的关联度较大,综合性状较好。这与烟叶主成分分析和聚类分析的结果一致。

Evaluation on Physical Properties in Flue-cured Tobacco Leaf from the Main Tobacco-growing Areas of Henan Province

An evaluation was conducted for physical properties of 15 flue-cured tobacco samples with 3 grades(B_2F,C_3F,X_2F) from 5 tobacco-growing areas of Xuchang,Luoyang,Nanyang,Sanmenxia,Xinyang in Henan.The result was compared with flue-cured tobacco of Brazil and Zimbabwe.The results showed that the flue-cured tobacco from Henan had many problems,as that thickness of leaf,weight per leaf,weight per unit leaf area were lower,the filling capacity and stem ratio were higher.The upper leaves of Luoyang and Sanmenxia tobacco had bigger degree of relation with that of imported tobacco,with better comprehensive properties.The middle leaves of Xuchang tobacco and Luoyang tobacco had bigger degree of relation with that of imported tobacco,with better comprehensive properties.The lower leaves of Nanyang and Sanmenxia tobacco had bigger degree of relation with that of imported tobacco,with better comprehensive properties.All of these coincided with the result of principal component analysis and cluster analysis.