贵州农业科学2025，Vol.53Issue(7)：10-21,12.DOI:10.3969/j.issn.1001-3601.2025.07.002
楚雄K326烟叶总糖、还原糖和两糖差稳定性及区划研究
Regionalization Study and Stability of Total Sugars,Reducing Sugars and Difference Between Two Sugars of K326 Tobacco Leaves in Chuxiong
摘要
Abstract
[Objective]The stability and content of total sugar(TS),reducing sugar(RS)content and difference between total sugars and reducing sugars(TS-RS)concentration in K326 were investigated,which provided reference for formulating targeted control measures for K326 planting in Chuxiong tobacco area,so as to effectively ensure the style characteristics of K326 tobacco leaves and the supply demand of raw materials in Chuxiong tobacco area,and promote the sustainable development of Chuxiong flue-cured tobacco production.[Method]Key chemical indicators affecting the main tobacco variety K326 in Chuxiong tobacco area,including total sugar,reducing sugar and their difference,were analyzed from the perspectives of complete stability in different parts and different years,relative(industrial)stability and fluctuation.And the suitability zoning research was conducted based on townships as units.[Result]The content of total sugar in upper and middle leaves of K326 from 2018 to 2022 achieved the aim of premium tobacco,whereas lower leaves mostly failed to reach the desired standard.The absolute stability was showed that the degree of variation in the upper and lower tobacco leaves were at a medium level,and the middle leaves were at a low level.The relative stability of upper and middle leaves were good,and that of lower leaves were relatively average.Lower leaves from 41.67％of the townships were failed to meet the premium-quality standard.The content of reducing sugar in the upper leaves were below the lower limit of the target requirements for high-quality tobacco leaves in 2019,2021 and 2022,but was slightly higher than the target requirements for high-quality tobacco leaves from 2018 to 2020.The middle leaves were met the requirements for high-quality tobacco leaves,while the lower leaves were below the lower limit of the requirements for high-quality tobacco leaves.The absolute stability showed that the degree of variation in the upper and middle tobacco leaves were at a relatively small to moderate level,while the lower leaves were at a moderate level,showing significant fluctuations between years.The relative stability of upper leaves were average or relatively good,and that of middle leaves were good,but that of lower leaves were poor;The lower leaves from all townships and the upper leaves from 69.44％of townships were below the required high quality;The two sugar difference in upper,middle,and lower leaves all were met the quality standards of premium tobacco;The absolute stability showed that the degree of variation in the upper and middle tobacco leaves were at a moderate level,while the lower leaves were at a relatively high level;The relative stability of upper and lower leaves were good,but that of middle leaves were poor.The number of towns with upper,middle and lower leaves higher than high-quality was 30.56％,75.00％and 58.33％.[Conclusion]The difference between the two sugars of K326 tobacco leaves in Chuxiong tobacco area exceeded 6％from 2018 to 2022,and the absolute stability showed as moderate or large degree of variation;According to current industrial standards for cigarette(≤8％or 7％),the proportions of sampling sites meeting high quality were 59.71％,34.86％,and 51.56％for upper,middle,and lower leaves,respectively,while those exceeding the high-quality standards accounted for 40.29％,65.14％,and 48.44％.Relative(industrial)stability performed good in upper and lower leaves,whereas performed poor in middle leaves.Townships exceeding the premium quality standards accounted for 30.56％,75.00％,and 58.33％of the total townships for upper,middle,and lower leaves,respectively.关键词
楚雄烟区/K326/两糖差/稳定性/区划Key words
Chuxiong tobacco area/K326/difference between total and reducing sugar concentration/stability/regionalization分类
农业科技引用本文复制引用
耿少武,胡杨,林云红,鲁耀,丁以纾,柴云霞,扶艳艳,张盛瑜,布云虹,王跃金,王文伦,汪华国..楚雄K326烟叶总糖、还原糖和两糖差稳定性及区划研究[J].贵州农业科学,2025,53(7):10-21,12.基金项目
中国烟草总公司云南省公司重大科技项目"楚雄K326植烟土壤精准管理及烟叶品质调控关键技术研究"(2023530000241019) （2023530000241019）
