摘要
通过相关和典型相关分析研究了烤烟烟叶中稳定同位素与化学成分的相互关系。结果表明,碳稳定同位素丰度在烟叶中变异较小,而氮稳定同位素丰度则存在广泛的变异;碳稳定同位素与氮稳定同位素间存在显著正相关关系,与总氮含量呈极显著正相关关系,与碳氮比和总钾含量存在极显著负相关关系,与钾氯比存在显著负相关关系。典型相关分析表明,随着烟叶中碳稳定同位素丰度的提高,烟叶中钾含量和钾氯比存在下降的变化趋势。说明烟叶中稳定碳同位素与常规化学成分间存在一定的相关关系,对烟叶中不同化学成分含量有一定的影响。
The purpose of this study was to identify the relationship between stable isotope and chemical components in flue-cured tobacco leaves by statistical approach. The results showed that variation of 813C stable isotope was low but the variation of filSN stable isotope was high in the tobacco leaves. The 513C stable isotope was positively and significantly correlated with filSN, positively and high significantly correlated with leaf total nitrogen content, negatively and significantly correlated with C/N and K＋. The results from canonical correlation analysis showed that the potassium content and K/CI in tobacco leaves decreased with the increasing of abundance of 813C stable isotope, which demonstrated that there was possible relationship between stable isotope and chemical components, and chemical components in tobacco leaves could be influenced by the abundance of stable isotopes.
出处
《中国烟草科学》
CSCD
2012年第4期42-45,共4页
Chinese Tobacco Science
关键词
烤烟
稳定同位素
化学成分
flue-cured tobacco
stable isotope
chemical component
