摘要
通过大田试验,研究了烤烟品种(Nicotiana tobacum L.)毕纳1号在毕节地区3个生态区烤烟不同生育期的多酚类化合物的动态变化规律,探索了不同生态条件对烤烟的物质成分积累的影响。结果表明,毕节地区烤烟酚类化合物含量较高,烤烟在整个生育期内,5种酚类化合物均呈现逐步上升的趋势,一般在成熟期前后增幅较大。不同生态区烤烟中,酚类化合物含量高低均为金沙县>威宁县>大方县,不同酚类物质含量的大小为绿原酸>芸香苷>4-O-咖啡尼奎酸>新绿原酸>莨菪亭,其中绿原酸和芸香苷的含量占多酚总量的79%以上,是多酚中重要的组成成分。不同生态区随着海拔高度的升高,气候条件有显著差别,对烤烟中酚类化合物的形成和积累有很大的影响。
Through field experiments, the author studied the dynamic changes of polyphenols content in flue - cured tobacco (Nicotiana tobacum L. ) variety Bina No. 1 at different growth stages in 3 ecological regions of Bijie, and explored the impacts of different ecological conditions on the composition accumulation of flue cured tobacco. The results showed that: in Bijie ecological tobacco area, Bina No. 1 had a high content of phenolic compounds, and five kinds of phenolic compounds contents all showed a gradual upward trend in whole growth period, especially around maturing period. For flue - cured tobacco in different ecological re-gions, the content of phenolic compounds had the following order: Jinsha county 〉 Weining county 〉 Dafang county. The content of different kinds of polyphenols showed the following sequence : chlorogenic acid 〉 rutin 〉 4 - O - coffee nique acid 〉 new chlo rogenic acid 〉 scopoletin, and chlorogenic acid and rutin contents accounted for more than 79% of the total polyphenols content. In different ecological regions, as the altitude increased, the climatic conditions changed obviously, and they had a great impact on the formation and accumulation of phenolic compounds in flue - cured tobacco.
出处
《江西农业学报》
CAS
2013年第11期61-64,共4页
Acta Agriculturae Jiangxi
基金
贵州省烟草公司重大科技攻关项目(GY2010003)
关键词
烤烟
毕纳1号
酚类化合物
毕节地区
Flue - cured tobacco
Bina No. 1
Polyphenols
Bijie area