烤煙煙葉常規(guī)化學(xué)成分與多元酸的相關(guān)分析
Correlation Analysis on Routine Chemical Compositions and Polybasic Organic Acids in Flue-cured Tobacco Leaves
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摘要: 應(yīng)用多元統(tǒng)計方法，對210 種烤煙煙葉的常規(guī)化學(xué)成分與多元酸之間進(jìn)行了簡單相關(guān)分析和典型相關(guān)分析,，結(jié)果表明：1)水溶性總糖,、還原糖與多元酸之間存在極顯著的負(fù)相關(guān)關(guān)系；石油醚提取物總量與多元酸之間存在正相關(guān)關(guān)系,；含氮類物質(zhì),、pH、氯和鉀等其它化學(xué)成分與部分多元酸之間也存在不同程度的相關(guān)性,。2)水溶性總糖,、還原糖、石油醚提取物總量與多元酸典型相關(guān)關(guān)系中，有2 對典型方程達(dá)1%極顯著水平,，有1 對達(dá)到5%的顯著水平,；含氮物質(zhì)、pH 與多元酸的4 對典型相關(guān)方程中,，有3 對達(dá)到1%的極顯著水平,，1 對達(dá)到5%的顯著水平；氯,、鉀與多元酸的第一典型相關(guān)方程也達(dá)到1%的極顯著水平,。Abstract: 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, Cl 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 Cl, K contents and polybasic acids was also significant at 0.01 level.
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