Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2007, Vol. 23 ›› Issue (8): 161-161.

Special Issue: 烟草种植与生产

• 农艺科学 • Previous Articles     Next Articles

Study on the Relation Between Topping with TSNA Accumulation of Flue-cured Tobacco

Wang Anyun, Qin Xiyun   

  • Online:2007-08-05 Published:2007-08-05

Abstract: In order to find the measures of reducing the TSNA contents of tobacco, there are three different topping treatment on the flue-cured tobacco K326, Hongda and Yunyuan 85 ,the TSNA of sample of green leaf and 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 TSNA of the three flue-cured tobacco was accumulated during the matured leaves stage, green leaves were very low. Topping of full blooming could reduced the TSNA contents of K326 and Hongda to 11.3%、10.3%, Topping of few flowers could reduced the TSNA contents of Yunyuan85 to 4.9 %. the total TSNA of the mature leaf of the three flue-cured tobacco, NNK was the highest、 NAT was the second 、NNN was the third 、NAB was the lowest,NNK of normal topping was 60%-70% total TSNA contents.

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