中国农学通报2026，Vol.42Issue(10)：203-210,8.
凉山会东烟区不同身份和叶片结构上部烟叶品质和工业可用性分析
Quality and Industrial Availability Analysis of Upper Leaves with Different Identities and Leaf Structures in Huidong Tobacco Area of Liangshan
摘要
Abstract
This study aimed to clarify the effects of different leaf identities and leaf structures on the chemical components,macromolecular substances,physical properties,appearance quality and sensory quality of upper tobacco leaves,and to screen the optimal phenotypic characteristics of high-quality and high-yield upper tobacco leaves.Taking the upper leaves of the dominant flue-cured tobacco cultivar'Yunyan 87'in Huidong tobacco-growing area,Liangshan,Sichuan Province as research materials,this study systematically analyzed the variations in chemical components,macromolecular substances,physical characteristics,appearance scores and sensory quality in response to diverse leaf identities and leaf structures.Correlation analysis and redundancy analysis were further applied to reveal the correlation relationships among these indicators.The results showed that leaf identity had a greater influence on the chemical composition,macromolecular substances,and physical properties of upper tobacco leaves than leaf structure.Compared with medium-identity leaves,the nitrogen and nicotine contents in upper leaves with thick identity significantly increased by 13.94%and 36.57%,respectively,while the contents of reducing sugar,chlorine,and cellulose significantly decreased by 12.65%,53.57%,and 15.56%,respectively.Starch content in upper leaves with compact structure significantly increased by 27.22%compared with that in leaves with loose structure.Compared with medium-identity leaves,leaves with thick identity exhibited significant increases in leaf width,single leaf weight,leaf thickness,and leaf surface density by 21.36%,62.94%,43.23%,and 39.07%,respectively,while stem percentage significantly decreased by 24.95%.The upper leaves with slightly thick identity achieved the highest appearance and sensory scores,and those with loose structure also obtained high appearance and sensory ratings.Upper leaves characterized by slightly thick identity and loose structure exhibited superior quality and enhanced industrial usability.Therefore,leaf identity should be regarded as a key indicator in the industrial selection and processing of high-quality upper tobacco leaves.Subsequent studies could be conducted on multi-cultivar comparison,cross-regional verification and physiological and molecular mechanisms.Meanwhile,an intelligent grading model based on leaf appearance characteristics can be constructed,so as to provide systematic technical support for high-quality tobacco leaf production and the improvement of industrial usability in Sichuan tobacco-growing areas.关键词
上部烟叶/烟叶身份/叶片结构/烟叶品质/物理特性/化学成分/感官质量/烤烟/四川凉山/工业可用性Key words
upper tobacco leaf/tobacco identity/leaf structure/leaf quality/physical characteristics/chemical constituents/sensory quality/flue-cured tobacco/Liangshan of Sichuan Province/industrial availability分类
农业科技引用本文复制引用
龙建林,杨柳,沈嘉,李铁,何坤德,王继荣,李金兴,姜超强,夏浩..凉山会东烟区不同身份和叶片结构上部烟叶品质和工业可用性分析[J].中国农学通报,2026,42(10):203-210,8.基金项目
四川省烟草专卖局科技项目"凉攀新烟区烤烟优质高效生产关键技术研究与集成示范"(SCYC202207) （SCYC202207）
四川省烟草专卖局科技项目"烟叶生产灾害补救技术措施的研究与应用"(SCYC202402). （SCYC202402）
