摘要
采集湖南烟区种植的9个不同基因型烤烟,运用灰色关联度分析方法研究了烟叶物理特性与主要化学指标间的关系。结果表明,烟叶物理特性与主要化学指标间的关系在不同部位间具有明显差异。其中,在物理特性的各项指标中,与中下部烟叶总糖含量关联程度较大的是长宽比,而上部烟叶则表现为叶片厚度。与中上部烟叶总氮、烟碱以及与下部烟叶烟碱含量关联程度较大的均是含梗率,与下部烟叶总氮含量关联程度较大的物理特性指标是叶长,双糖差、糖碱比、氮碱比在不同部位间的关联程度不同。叶片厚度是影响上部烟叶主要化学指标的重要因子,中下部烟叶的长宽比决定了烟株光合作用的强弱以及光合产物的累积量,从而间接反映出烤后烟叶品质的优劣。
Nine different genotypes of flue-cured tobacco were collected from Hunan Province to study the correlation between physical properties and main chemical indexes by using the method of grey incidence analysis.The results indicated that the correlation between main physical properties and chemical indexes were significant different with leaf positions.In all physical properties indexes,the closest relation degree to total sugar content in cutters and lower leaves was leaf width/leaf length,and in upper leaves was leaf thickness.The closest correlation to total nitrogen and nicotine content in cutters and upper leaves,and the nicotine content in lower leaves was stem ratios;the closest relation degree to total nitrogen content in lower leaves was leaf length,and the relation degree to margin of two sugar,reducing sugar/nicotine,total nitrogen/nicotine were different with leaf positions.The leaf thickness of upper leaves was the key factor to the main chemical indexes,leaf width/leaf length deter-mined the intensity of tobacco plant photosynthesis and the accumulation for cutters and lower leaves,so the ratio reflected the quality of tobacco leaves to a certain extent indirectly.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2012年第1期140-143,共4页
Journal of Anhui Agricultural University
基金
湖南省烟草专卖局湖南特色新品种选育项目(2006A-12)资助
关键词
湖南
烤烟烟叶
物理特性
化学指标
灰色关联度分析
Hunan
flue-cured tobacco leaves
physical properties
chemical indexes
grey incidence analysis
