The Study On Leaves Quality Characteristic And Comprehensive Assessment Of Different Tobacco Ggenotypes

The variety is the base of tobacco's quality,it is the internal cause of enhancing the tobacco leaves's output and the quality.A good tobacco variety can enhance the ability of the tobacco leaves's disease-resistant,the anti-insect,anti-drought,increaing the tobacco leafs quality,Providing the raw material for the cigarette production whose appearance quality is good,chemical composition is well-balanced,fragrance is fine,safety is better,remarkably increasing the quality,the production,reduces the cost,enhances each area's income.So choosing the fine variety is one kind of most economical effective technical measure.This experimental studies different kinds of flue-cured tobacco leaf's appearance quality,Intrinsic quality and tobacco leaf's usability,And has the synthesis appraisal on the different tobacco genotypes.The experiment's purpose is providing the theory basis for the Nanyang tobacco leaf's sustainable development,Its main conclusion is as follows:1.The physical property of tobacco leaf direct influence tobacco leaf's usability and tobacco product style,This experiment's result indicated that,the weight per leaf of NC89, yunyan87 nongda202 is heavier than other variety's,the weight per leaf of 8336,k149,k346 is lighter than others.The tensile strength of nongda202,yunyan202 is stronger than other tobacco,but that of yuyan 3,k346,zhongyan100 is less than others.speaking of stern rate,the stern rate of yuyan 3,k149,NK4 is higher in those varietyes,the stern rate of qingsheng 2,yunyan87 is lower than others.speaking of weight of leaf nature,which of NC89,nongda202 is heavier than other tobacco's,which of k346,panyuanhuang is lower than others.speaking of filling power,the fillingpower of k326,yunyan87,yunyan202 is heavier than other tobacco, the filling powerof yuyan 3,k346 is lower than others.2.when the tobacco leaf's chemical component ratio is well-balanced,Its strength is moderate,taste is comfortabe,biting taste is small,residual taste is pure.This experiment's result indicated that,when genotype is different,the tobacco leaf's chemical component is also different.The total sugar and reduce sugar's content of NK4,8336 is lower than other tobacco's,The total nitrogen and protein's content of NC89,NONGDA202 are higher,their chemical component ratio aren't ballanced,the intrinsic quality is worse,The sugar's content of yunyan202,yunyan87,yunyan85,k326 is higher,their total nitrogen and protein's content is less than nc89,nongda202's,their chemical component ratio aren well- ballanced,the intrinsic quality is well,The efficient character such as superior leaf proportion,the output,the average price has enhancement tobacco leaf's.3.The tobacco leaf's aroma is the main content of appraising tobacco leaf's quality.In the different tobacco genotype,the aroma constituent's content is different,the total aroma constituent's content of yunyan87,yunyan85,k326 is higher than other flue-cured tobacco's in middle and upper leaves.speaking of the neophytadiene,the content of yunyan202,NC89 is higher than other variety's in upper and middle leaves.the neophytadiene's content of NK4,8336,yuyan 3 is lower than others in middleLeaves,The neophytadiene's content of NK4,k346,zhongyan100 is lower than others in upper Leaves.speaking of the carotenoid,the content of panyuanhuang,NC89 is higher than other variety's in middle leaves,the content of yunyan87,yunyan202,k326 is higher than other variety's in upper leaves.The content of NK4,k149 is lowerthan other variety's in upper and middle leaves.speaking of the product of browning reaction.The content of k326,yunyan202,NC89 is higher than other variety's in upper and middle leaves.The content of RG17,yuyan 3,NK4 is lower than other variety's in middle leaves.The content of K346,8336,NK4 is lower than other variety's in upper leaves. speaking of phenylalanine derivative,The content of yunyan202,yunyan87,k326 is higher than other variety's in middle leaves.The content of yunyan202,NC89 is higher than other variety's in upper leaves.The content of 8336,k346 is lower than other variety's in middle and upper leaves,speaking of solanone's content,the content of yunyan87,yunyan202, k326 is higher than other variety's in middle leaves.The content of k149,8336,NK4 is lower than other variety's in middle leaves,the content of yunyan87 is higher than other variety's in upper leaves.The content of k149,k346yuyan 3 is lower than other variety's in upper leaves.4.The result of differemt tobacco leafs smoking quality indicated that,the quality of aroma of k326,yuyan85,panyuanhuang is better than others,that of NK4,8336 is worse other tobacco,the volume of aroma of nongda202,yuyan202 is richer than others,that of NK4,8336 is poor;the concentration of qinyan95,NC89,K326 is stronger,that of yuyan 3,8336,zhongyan100 is weaker.the offensive odor of yunyan87 nongda 202 is lighter,that of k149,NK4 is heavier;the strength of K326,yunyan87,yuyan202 is stronger,that of yuyan 3,k346,RG17 is weaker than others.the after taste of yunyan87,yuyan202 is better than other tobacco,that of k149,RG17 is worse.the biting taste,the combustibility,the ash color of different tobacco are same with each other,the result show that the biting taste is small,the combustibility is stronger,the ash color is gray-white.5.The result of simple correlation analysis indicated,these chemical component have close relations with fragrant material which contains total sugar,total nitrogen/nicoine,k, k/cl,total nitrogen,nicoine,protein,and so on.In over all,the sugar,k,chemical componen has a positive relation with fragrant material,the nitrogen compounds has a negative relation with fragrance matter.The result of gray connection analysis indicated,the order of the relation between various ingredients and fragrant material from high to low is as follow:the potassium,the total sugar,the reduce sugar,k/cl,cl,total nitrogen/nicoine,amino acid,protein, total nitrogen,nicoine.It is that the relation between potassium and fragrance ingredient is high,the relation between total sugar and fragrance ingredient is less high,the nitrogen compound and fragrance content's connection is smallest.So,Flue-cured tobacco leaf's quality is influenced by carbon and nitrogen,in a certain scope,enhancing the sugar content,reducing contents of the nitrogen compound is good for enhancing leaf quality of the flue-cured tobacco.6.This article utilizes the principal components analytic method,Analyzed the 10 factors which has a more tremendous influence on the tobacco leaf's quality,and has the synthesis assessment on the different tobacco genotypes.the result indicated,yunyan87, yunyan85,k326,yunyan202 displays well,its economic efficiency is higher,The tobacco leaf's intrinsic chemical component content is suitable,the total nitrogen and the nicotine ratio is plant,butcoordinated,so these tobacco is comparatively suits for nanyang to8336,k149,k346,NK4,yuyan 3 displays worse.