基于灰色效果测度和主成分分析的湘西州烟叶物理特性综合评价  

Gray Effect Measure and Principal Component Analysis-based Comprehensive Evaluation for Physical Properties of Flue-cured Tobacco Leaves From Xiangxi Area

作　　者：田茂成 邓小华[1] 陆中山 田峰 陈治锋 张明发 张黎明 

机构地区：[1]湖南农业大学农学院,湖南长沙410128 [2]湘西自治州烟草专卖局,湖南吉首416000

出　　处：《核农学报》2017年第1期187-193,共7页Journal of Nuclear Agricultural Sciences

基　　金：湖南省科技厅项目(2013NK3073);湖南省烟草专卖局重点项目(13-14ZDAa03)

摘　　要：为丰富和完善烟叶质量评价体系,以湘西州2011年烟叶样品为材料,应用主成分分析和灰色效果测度理论构建烟叶物理特性指数,对其烟叶物理特性进行综合评价。结果表明,湘西州烟叶的叶片厚度略薄、结构疏松、吸湿性强,但烟叶含梗率较大。不同县烟叶开片度、含梗率、叶片厚度、叶质重差异显著,不同县单叶重、平衡含水率和物理特性指数差异不显著。烟叶物理特性指数大小排序为:花垣>龙山>泸溪>古丈>永顺>保靖>凤凰。烟叶物理特性指数排名前5位的乡镇为:茨岩镇、列夕乡、排碧镇、洛塔镇、茅坪乡。烟叶物理特性指数(PPI)空间分布有从中部分别向东部和西部2个方向递减的分布趋势,其集中于74.00~81.00分。烟叶物理特性指数可对不同样品或产区的物理特性质量进行排序,综合反映烟叶物理特性质量。In order to perfect the system of tobacco quality evaluation,the physical properties indexes of flue- cured tobacco were comprehensively evaluated by adopting the ways of principal component analysis and gray effect measure with the flue- cured tobacco samples from Xiangxi in 2011. The results showed that the flue- cured tobacco leaves from Xiangxi have the characteristic of slight- thin leaf,loosen- leaf construction,strong hygroscopicity and higher- stem ratio. Significant differences were observed in length with leaf width proportion,stem ratio,thickness of leaf and weight per unit leaf area among different counties. However,the differences in weight per leaf,balance water ratio,physical properties indexes were not significant among different counties. The sequence of physical properties indexes was Huayuan county 〉 Longshan county 〉 Luxi county 〉 Guzhang county 〉 Yongshun county 〉 Baojing county 〉Fenghuang county. The physical properties indexes of the top 5 towns were Zhiyan town,Liexi village,Paibi town,Luota town,and Maoping village. The physical properties indexes decreased gradually from central areas to west and east in spatial distribution. The physical characteristic indexes can be used to sort the quality of physical characteristics of different samples or different tobacco- planting areas; and that reflected the quality of the physical characteristics comprehensively.

关 键 词：物理特性 主成分分析 灰色效果测度 湘西 

分 类 号：S572[农业科学—烟草工业]