不同烤烟基因型非挥发性有机酸和高级脂肪酸含量的变异分析  

Analysis of variation of the contents of non-volatile organic acids and senior fatty acids in different flue-cured tobacco genotypes

作　　者：卢秀萍[1] 许仪[2] 许自成[2] 肖炳光[1] 何登峰[2] 

机构地区：[1]云南省烟草科学研究所,云南玉溪市红塔路47号653100 [2]河南农业大学农学院,河南郑州450002

出　　处：《中国烟草学报》2007年第3期47-51,共5页Acta Tabacaria Sinica

基　　金：国家烟草专卖局科技攻关项目(110200401007);云南省烟草公司科技攻关项目(04A01);河南省杰出人才创新基金项目(0421001900)

摘　　要：研究了56个烤烟基因型非挥发性有机酸和高级脂肪酸含量的变异。结果表明:(1)非挥发性有机酸和高级脂肪酸在不同基因型间存在广泛的变异。非挥发性有机酸总量为(27.52±7.23)mg.g-1,其中苹果酸、柠檬酸和乙二酸等3者的含量之和占总量的84.92%。高级脂肪酸总量平均为(10.11±1.24)mg.g-1,其中饱和高级脂肪酸含量为(4.52±0.48)mg.g-1,不饱和高级脂肪酸含量为(5.59±0.79)mg.g-1,二者分别占总量的44.71%和55.29%。(2)聚类分析根据各种有机酸的含量大小分为高、中、低3个类群:非挥发性有机酸含量依次为(35.28±3.23)mg.g-1、(25.96±1.91)mg.g-1和(18.22±2.28)mg.g-1;饱和高级脂肪酸含量依次为(5.35±0.26)mg.g-1、(4.62±0.17)mg.g-1和(4.07±0.19)mg.g-1;不饱和高级脂肪酸含量依次为(7.05±0.57)mg.g-1、(5.78±0.29)mg.g-1和(4.80±0.27)mg.g-1。一般同一种有机酸含量在不同基因型类群之间差异较大,而在类群之内则差异较小。Variation of content of non-volatile organic acids and senior fatty acids in 56 flue-cured tobacco genotypes was studied. Results indicated that ： （ 1 ） There existed wide variation for non-volatile organic acids and senior fatty acids among different genotypes. Total content of non-volatile organic acids was （27.52 ± 7.23） mg·g^-1, among which the sum of malic acid, citric acid, and oxalic acid accounted for 84.92 %. Total content of senior fatty acids was （ 10.11 ± 1.24） mg·g^-1, among which the saturated senior fatty acids was （4.52 ± 0.48 ） mg·g^-1 and the unsaturated senior fatty acids was 5.59 ± 0.79） mg·g^-1, accounting for 44.71% and 55.29%, respectively. （2） According to the content of various organic acids, genotypes were classified into 3 groups with high, medium, and low contents. Content of non-volatile organic acids from high to low were （35.28 ± 3.23） mg·g^-1, （25.96 ± 1.91 ） mg·g^-1, and （ 18.22 ± 2.28） mg·g^-1 ; content of saturated fatty acid were （5.35 ± 0.26） mg·g^-1, （4.62 ± 0.17） mg·g^-1, and （4.07 ± 0.19） mg·g^-1 ; content of unsaturated fatty acid were （7.05 ± 0.57） mg·g^-1, （5.78 ± 0.29） mg·g^-1, and （4.80 ± 0.27） mg·g^-1 in turn. In general, variation of content of the same organic acids category was big among different genotype clusters but small within clusters.

关 键 词：烤烟 基因型 非挥发性有机酸 高级脂肪酸 聚类分析 

分 类 号：S572[农业科学—烟草工业]