龙杰　张轲　孙浩巍　杨青　张晓伟　马文广　张冀武　陈丹　池源

摘要    本研究以烤烟外引品种NC71与对照品种K326和NC89在南北烟区9个省（市）10个种植试点的烟叶样品为试材，对其外观质量、常规化学成分、常规烟气成分、感官质量、主要致香成分5个方面进行了分析比较。结果表明，NC71在外观质量上与南北烟区对照品种K326和NC89相当，部分NC71样品身份或油分稍好于对照品种;未检测出碱糖、碱氮、钾氯比值都较协调或是都不协调的样品，部分NC71样品钾氯或碱糖和钾氯比值较协调。南方烟区湖南永州的NC71样品碱糖和碱氮比值不协调;NC71在焦油、一氧化碳和烟碱含量上总体高于对照品种;南北烟区种植试点的NC71样品综合感官质量表现较好;北方烟区3个种植试点NC71致香物质总量优于对照品种NC89，南方种植试点NC71与对照品种K326在致香物质含量上各有优势。

关键词    烤烟;外引品种;NC71;烟叶样品质量

中图分类号    S572        文献标识码    A

文章编号   1007-5739（2019）13-0042-04                                                                                     開放科学（资源服务）标识码（OSID）

Analysis  on  Leaf  Sample  Quality  of  Introduced  Flue-cured  Tobacco  Cultivar  NC71

LONG Jie 1    ZHANG Ke 1 *    SUN Hao-wei 1    YANG Qing 1    ZHANG Xiao-wei 1    MA Wen-guang 2    ZHANG Ji-wu 1

CHEN Dan 1    CHI Yuan 3

（1 Yunnan Tobacco Quality Inspection & Supervision Station，Kunming Yunnan 650106; 2 Yunnan Academy of Tobacco Agricultural Science;

3 Yunnan University of Business Management）

Abstract    Taking introduced flue-cured tobacco cultivar NC71 and CK cultivar K326 and NC89 as materials，the leaf samples from 10 pilot units of 9 provinces（cities） of south and north tobacco planting-regions in China were studied to analyze and compare the appearance quality，general chemical-composition，general flue-gas composition，sensory quality and major aroma components.The results showed that there were little differences between NC71 and CK cultivar K326 and NC89 leaf samples in appearance quality.There was no leaf samples with the harmonious or disharmonious ratios of sugar and nicotine，nitrogen and nicotine，potassium and chlorine，partial leaf samples exhibited harmonious ratio of potassium and chlorine or ratios of sugar and nicotine，potassium and chlorine.Disharmonious ratios of sugar and nicotine，nitrogen and nicotine were observed in leaf samples from Yongzhou，Hunan，a south tobacco planting-region.Totally，in comparison with CK cultivars，relatively higher TPM，nicotine and CO content were detected in NC71 leaf samples.Compared to the CK cultivars，NC71 leaf samples showed higher sensory quality.Compared to the CK cultivar NC89，higher aroma content were detected in NC71 leaf samples from 3 pilot units of north tobacco planting-regions，and leaf samples of NC71 and K326 from south tobacco planting-regions，exhibited their own advantages in aroma content.

Key words    flue-cured tobacco;introduced cultivar;NC71;leaf sample quality

烟草（Nicotiana tabacum L.）是世界上广泛种植的重要农作物之一[1]，我国是世界上最大的烟草生产国和消费国。我国烟草种质资源丰富，类型多样，目前已编目保存的各类烟草种质资源共4 042份[2];但是多年来烤烟育种中使用的主体亲本多集中在少数种质上，导致我国烤烟育种和生产所用种质的性状遗传变异背景不丰富，性状趋同，遗传基础日趋狭窄。目前，主栽品种K326、云烟85、云烟87、云烟97、红花大金元等之间的遗传相似性较高[3-5]。因此，加快优质烟草种质创新和引进，拓宽烟草遗传基础，对我国烟草生产意义重大[6-8]。……