摘要
研究了生态因子(海拔、气象和土壤养分等)与烟叶化学成分的相关关系。结果表明,海拔增加,中、上部烟叶的总糖和氯含量增加,而烟碱含量降低。气象因子中,对烟叶化学成分影响最大的因素是6月份的日照时数、7月份的降水量和气温。土壤养分中,硝态氮含量与上部烟叶的烟碱、总氮、蛋白质含量呈正相关;速效钾含量与中、上部烟叶钾含量呈正相关。
Correlations were studied between chemical components of tobacco leaves and ecological factors, including altitude, meteorological factors, and soil nutrients of Guizhou tobacco production regions. The results indicated that the contens of total sugar and chlorine increased, while nicotine decreased in middle and upper leaves with the increasing altitude. Among the meteorological factors, the sunlight hours in June, precipitation and temperature in July were among the most significant. Whereas there exsisted positive correlations between the content of nitrate nitrogen and the levels of nicotine, total nitrogen and protein in upper tobacco leaves, which also held true between the content of active potassium in soil and potassium level in middle and upper tobacco leaves.
出处
《中国烟草科学》
CSCD
2008年第2期18-22,共5页
Chinese Tobacco Science
关键词
生态因子
烟叶
化学成分
ecological factors
tobacco leaves
chemical components
