Analysis on Chlorine Content and Its Correlation with Leaf Quality of Liangshan Flue-Cured Tobacco

Zeng Zhaojia; Li Jiaying; Ma Junhong; Shi Shuangshuang; Wang Weining

doi:10.3969/j.issn.1001-4942.2014.02.006

Abstract：Using multiple comparison , linear regression and gray correlation analysis methods , the chlo-rine contents of 408 tobacco leaf samples from 8 main tobacco planting areas in Liangshan of Sichuan Province and their correlations with tobacco leaf quality were analyzed .The results showed that the average chlorine content of Liangshan tobacco leaves was 0 .32%with the range of 0 .01%~0 .82%, so the overall perform-ance was lower .The average chlorine contents in different parts ranked as lower leaf >middle leaf >upper leaf, and the differences between adjacent parts were not significant .The chlorine content of Honghuada-jinyuan was not significantly different with that of Yunyan 87 , but was significantly different with that of Yun-yan 85 .The tobacco chlorine content in yellow loam was not significantly different with that in flint soil , but was 1%highly significantly different with that in paddy soil .The chlorine contents of Xichang and Puge were higher, and that of Yuexi was the lowest .The chlorine content was significantly correlated with tobacco ap-pearance qualities, such as leaf structure , color, body, oil and chroma, but not significantly correlated with maturity.The chlorine content was significantly correlated with leaf length , single leaf weight , filling power and other indicators of tobacco physical characteristics , but not significantly correlated with thickness and stem ratio.The chlorine content was significantly positively correlated with reducing sugar and total sugar content , but highly significantly negatively correlated with potassium content .The correlations of chlorine content with smoke indexes were not significant , and the correlation degrees were all very low .