52份烤烟种质资源常规化学成分、多元酸和高级脂肪酸分析  

Analysis of routine analytes, polyprotic and higher fatty acids in 52 tobacco germplasm resources

作　　者：许美玲[1] 焦芳婵[1] XU Meiling;JIAO Fangchan(Yunnan Academy of Tobacco Agricultural Sciences,Kunming 650021,China)

机构地区：[1]云南省烟草农业科学研究院

出　　处：《中国烟草学报》2019年第4期20-28,共9页Acta Tabacaria Sinica

基　　金：中国烟草总公司云南省公司项目(2014YN07和2017YN05)

摘　　要：【目的】筛选品质优良的烤烟种质资源。【方法】52份烤烟种质资源种植于云南省玉溪市研和镇,按优质烟生产技术规范进行种植和管理,统一调制后选择中部烟叶,分析比较其常规化学成分和多元酸、高级脂肪酸含量,并进行相关分析和聚类分析。【结果】1)各主要成分含量范围分别为烟碱1.87%~5.35%、钾1.00%~2.32%、草酸10.58~29.78mg/g、苹果酸20.43~146.07mg/g、柠檬酸7.16~35.65mg/g等。2)52种质中,处于适宜范围的种质数量为:总氮52份,总糖21份,还原糖16份,烟碱5份。3)52份烤烟种质可聚为三类:第1类钾含量高,多元酸含量高,高级脂肪酸含量低;第2类总糖适宜,烟碱含量较高,高级脂肪酸含量高;第3类总糖含量高,钾含量低,多元酸含量低,各高级脂肪酸含量中等。[Objective] To screen out high-quality flue-cured tobacco materials.[Method] 52 flue-cured tobacco germplasm resources were planted and managed according to the technical specifications of high quality tobacco production in Yanhe Town,Yuxi City,Yunnan Province.After flue curing,middle leaves were selected as research objects to study routine chemical components,polyacid and higher fatty acid contents.Correlation analysis and cluster analysis were carried out.[Results] 1) The content ranges of basis components were nicotine 1.87% to 5.35%,potassium 1.00% to 2.32%,and oxalic acid 10.58 to 29.78 mg/g,malic acid 20.43 to 146.07 mg/g,and citric acid 7.16 to 35.65 mg/g,etc.2) of the 52 tobacco germplasm resources,the number of germplasms in the suitable range was 52 for total nitrogen,21 for total sugar and 16 for reducing sugar,5 for Nicotine,respectively.3) the 52 flue-cured tobacco germplasms can be grouped into three categories,including type I characterized by high potassium content,high polyacid content,and low higher fatty acid content,Type II characterized by suitable total sugar,high nicotine content,high higher fatty acid content,and Type III characterized by high total sugar content,low potassium content,low polyacid content,and medium higher fatty acid content.

关 键 词：烟草种质资源 常规化学成分 多元酸 高级脂肪酸 相关分析 聚类分析 

分 类 号：S572[农业科学—烟草工业]