Correlation Analysis On Quality Indexes Of Tobacco Leaves In The Different Areas Of Henan

In order to research the difference tobacco leaves among these areas, this project splits main growing areas into Yu Xinan (including Sanmenxia, Luoyang, Nanyang) and Yu Zhong (including Xuchang, Pingdingshan, Luohe) regions according to their topography, landform, and the service conditions of cigarette enterprises. The project tests B2F、C3F、X2F levels’ samples from main tobacco growing counties (Yu Xinan140samples, Yu Zhong amples, total251sample)including the surface quality (Color, Maturity, Body, Leaf Structure, Oil, Color, Length and Width), physical characteristics (Equilibrium moisture content, Padding value, Smoldering time, Thickness, Leaf density, Tensile breaking strength, Stem content, Single leaf weight), smoking quality (Aroma-type, Quality of aroma, Aroma quantity, Concentration, Physical strength, Miscellaneous gas, Stimulation, Aftertaste, Flammability, Ash content) and chemical composition (Nicotine, total Sugar, K, L, Reducing Sugar, total Nitrogen, Starch), and calculates TS/TN,TN/N,K/CL. The data above is used as tobacco quality quotas of this project to research their correlation. The research shows, there are widely linear or quadratic curve relations among quality quotas in both Yu Zhong and Yu Xinan. But there are differences among the correlation of quality quotas in different areas. Between two regions, the correlation of chemical composition vs surface quality and physical characteristics vs chemical composition are quite different, and the correlation of surface quality vs chemical composition is similar. nicotine ratio (R=-0.6261), and the length of nicotine (R=0.5306), length and nitrogen/nicotine ratio (R=-0.5428) etc.. Sensory quality and chemical composition of linear relationship between strong indicators, relaxation in tobacco-growing areas in momentum and nicotine, nicotine concentration (R=0.813) and (R=0.7076), concentration and nitrogen/nicotine ratio (R=-0.6774) etc.. Physical characteristics and chemical composition on linear relationship between strong indicators, relaxation in tobacco-growing areas in single leaf weight and leaf weight (R=0.7063), nicotine and nitrogen/nicotine ratio (R=-0.6678), leaf density and nitrogen nicotine ratio (R=0.6257). Canonical correlation analysis of tobacco leaves shows, between surface quality and chemical composition, the coefficients of Width and Nicotine, Color and Nitrogen Alkali ratio, Maturity and Nitrogen Alkali ratio are maximum in Yu Xinan, the coefficient of Length and Total Sugar is maximum in Yu Zhong; between smoking quality and chemical composition, the coefficients of Momentum and Nicotine is maximum in Yu Xinan and Yu Zhong; between physical characteristics and chemical composition, the coefficient of Equilibrium moisture content and Chlorine, Smoldering time and Nicotine, Fill value and Starch, Elongation and total Sugar are maximum in Yu Xinan; the coefficient of Single leaf weight and Nicotine is maximum in Yu Zhong.