彭水县烟叶化学成分协调性不同年份间变异分析

Variability Analysis of Chemical Composition Coordination of Tobacco of Pengshui County in Different Years

为掌握重庆市彭水县烟叶协调性的时间变异特征,对2005—2014年上(B2F)、中(C3F)、下(X2F)部烟叶的协调性指标进行分析。结果表明:在彭水烟区烟叶钾氯比和两糖差变异系数较大,两糖比年度间变异最小,而其他化学成分含量的变异幅度在30%以内。从不同年份部位间变异来看,各化学成分及协调性指标均有逐渐稳定的趋势。从不同部位间对比来看,上部叶各化学成分协调性指标年度间变异总体上大于中、下部叶。

In order to obtain the time variation characteristics of quality of tobacco leaf quality in Pengshui of Chongqing, chemical compatibility of upper leaves （B2F）, middle （C3F）, bottom （X2F）of tobacco leaf were analyzed from 2005 to 2014. The results showed that tobacco potassium chloride ratio and two sugar difference coefficient of variation ＂were larger than the inter annual variation of sugar, two min, and other chemical composition variation within 30%.From the variations between different years parts ,chemical composition and coordination index were gradually stable trend. From different parts of contrast,the upper leaves of each chemical component coordination index of yearly variation was generally larger than the lower leaves.