^(60)Coγ辐照对烤烟品种TSNA累积的影响  

Study on the Relation Between ^(60)Coγ radiation with TSNA Accumulation of Flue-cured Tobacco

作　　者：汪安云[1] 

机构地区：[1]云南省烟草科学研究所,玉溪653100

出　　处：《中国农学通报》2007年第11期188-191,共4页Chinese Agricultural Science Bulletin

基　　金：云南省烟草公司资助"调控烟叶TSNA的栽培技术研究"(99A05)

摘　　要：为了探明降低烟草中的TSNA(烟草中的特有亚硝胺)含量的技术措施,该文通过对3个烤烟品种K326、红大、云烟85进行60Coγ射线不同辐照处理,采用国际标准分析方法,对其鲜叶及成熟叶样品进行TSNA分析检测,以期发现它们之间的变化规律。结果表明:从总的TSNA平均值来看,3个烤烟品种,在对照状态下,K326最高,红大次之,云烟85最低,云烟85是较理想的低TSNA品种。当辐照水平为300rad时,3个烤烟品种其平均的TSNA总量都有所降低,其中以红大烤烟品种最为显著,比对照降低了16.9%;云烟85比对照降低了4.6%;K326效果不明显。60Coγ射线辐照水平为300rad时,可作为一项降低红大品种TSNA栽培措施来应用。3个烤烟品种K326、红大、云烟85的4种亚硝胺含量都呈现了相同的变化规律;即NNK含量最高、NAT第二、NNN第三、NAB含量最低。In order to find the measures of reducing the TSNA contents of tobacco, there are three different ^60Coγ radiation treatment on the flue-cured tobacco K326, Hongda and Yunyuan 85, the TSNA of sample of mature leaf was detected by using the method of international criterion during different stage, so that find the variation law. The result showed that the total TSNA of the three flue-cured tobacco of the CK, K326 was the highest, Hongda was the second, Yunyuan85 was the lowest. When the ^60Coγ radiation was 300rad level, the average TSNA of the three flue-cured tobacco all was reduced. Compared to CK, Hongda was redced 16.9%, Yunyuan 85 was reduced 4.6%. So the ^60Coγ radiation of 300rad level could reduce the TSNAs of Hongda. the total TSNA of the mature leaf of the three flue-cured tobacco showed the same law： NNK was the highest, NAT was the second, NNN was the third, NAB was the lowest.

关 键 词：^60COΓ射线辐照 烤烟品种 TSNA 

分 类 号：S572[农业科学—烟草工业]