烟草科技Issue(8)：54-59,65,7.
烤烟不同部位叶片烟碱含量与中微量元素的关联分析
Correlation Analysis Between Nicotine Content and Medium and Trace Element Contents in Flue-cured Tobacco Leaves from Different Stalk Positions
摘要
Abstract
The relationships between nicotine content and the contents of medium and trace elements in flue-cured tobacco leaves from different stalk positions were analyzed with descriptive statistics analysis, stepwise regression analysis and path analysis. The tobacco was cultivated with the same cultural practices at twelve counties in seven main tobacco-growing provinces. The results indicated that the contents of medium and trace element and nicotine content in flue-cured tobacco leaves from different stalk positions were of medium degree of variation. The variation of Mn content among different areas was the largest in all the tested medium and trace elements, while that of P content was the smallest. Among leaves from different stalk positions, the variation of nicotine content in lower leaves was relatively larger. The elements in the order of direct effect influencing nicotine content in lower leaves were Si＞Cu＞Ca＞Zn＞B,in middle and upper leaves were P＞Fe＞Cu＞ Mo＞B and Si＞Fe＞Ca＞Cu＞B, respectively. Because of the interactions among medium and trace elements, their combined influences on nicotine content in leaves from different positions presented many variations. To reduce nicotine content in tobacco leaves by regulating the contents of medium and trace element, proper measures should be taken to leaves from each position: focusing on increasing the contents of Si,Ca and Cu for upper leaves; decreasing B and Fe contents and raising Mo content for middle leaves; reducing B content and increasing Zn and Cu contents for lower leaves.关键词
烤烟/烟碱/中微量元素/关联分析Key words
Flue-cured tobacco/Nicotine/Medium and trace element/Correlation analysis分类
轻工纺织引用本文复制引用
陈伟,唐远驹,潘文杰,李智勇..烤烟不同部位叶片烟碱含量与中微量元素的关联分析[J].烟草科技,2012,(8):54-59,65,7.基金项目
国家烟草专卖局科技重大专项“中间香型特色优质烟叶科学保障大田生长时间配套技术研究”(Ts-02-20110015) （Ts-02-20110015）
贵州省烟草专卖局科技重大专项“贵州山地特色优质烟叶研究与开发”(2007-04). （2007-04）
