关键词: 外源物质, 外源物质, Cu毒害, 调节机理

Abstract: The weak usability of upper leaves of flue-cured tobacco is the key problem in the tobacco industry, which limited the development of big cigarette brands in our country. This article had summarized various factors of influencing the flue-cured tobacco, and it was considered that it should reasonably fall together all segments include the flue-cured tobacco production technology, baking technologies, economic policies and so on, for improving the usability of upper leaves of flue-cured. Furthermore, it also should formulate the corresponding countermeasures of every flue-cured tobacco production area on the basis of the environment, plant conditions, baking levels and other realistic conditions. Improving usability of upper leaves of flue-cured tobacco is the urgent problem in the tobacco industry, so it is expected that the article might provide abundant theoretical foundation and references ideas for tobacco industry colleagues.