烤烟烟叶常规化学成分与多元酸的相关分析

Correlation Analysis on Routine Chemical Compositions and Polybasic Organic Acids in Flue-cured Tobacco Leaves

应用多元统计方法,对210种烤烟烟叶的常规化学成分与多元酸之间进行了简单相关分析和典型相关分析,结果表明:1)水溶性总糖、还原糖与多元酸之间存在极显著的负相关关系;石油醚提取物总量与多元酸之间存在正相关关系;含氮类物质、pH、氯和钾等其它化学成分与部分多元酸之间也存在不同程度的相关性。2)水溶性总糖、还原糖、石油醚提取物总量与多元酸典型相关关系中,有2对典型方程达1%极显著水平,有1对达到5%的显著水平;含氮物质、pH与多元酸的4对典型相关方程中,有3对达到1%的极显著水平,1对达到5%的显著水平;氯、钾与多元酸的第一典型相关方程也达到1%的极显著水平。

Routine chemical compositions and polybasic organic acids in 210 samples of flue-cured tobacco leaves were studied by using pearson and canonical correlation analysis. The results indicated that negatively and highly significant difference existed between total sugar, reducing sugar and polybasic acids, respectively. Total petroleum ether extract was positively correlated with polybasic organic acids. Some polybasic organic acids were also correlated with N-containing compounds, pH, CI and K contents, and other chemical components. Two of the canonical correlation equations among total sugar, reducing sugar, total petroleum ether extract and polybasic organic acids were highly significant at 0.01 significant level, and one was significant at 0.05 level. Four canonical correlation equations between N-containing compounds, pH and polybasic acids were all significant. One equation was analyzed at 0.05 level, and the other three at 0.01 level. The first canonical correlation equation between C1, K contents and polybasie acids was also significant at 0.01 level.