Advances in tobacco carbon-nitrogen metabolism and its regulatory techniques.

Tobacco is one of the important leaf cash crops in China, compared with foreign tobacco leaves, insufficient aroma, chemical composition is not coordinated enough, understanding the relationship between carbon and nitrogen metabolism and tobacco quality, coordination of the metabolic process between the two, to improve the quality of tobacco, the production of characteristic high-quality tobacco leaves and guide agricultural operations is of great significance.
, the research progress of tobacco carbon-nitrogen metabolism and its regulatory techniques is introduced by a small compilation below.
growth and development of tobacco plants are directly regulated by carbon-nitrogen metabolism and eventually reach industrial availability.
There are studies that the transition transformation of carbon-nitrogen metabolism is marked by the cluster tree stage, if carbon-nitrogen metabolism is not coordinated, tobacco leaves can not be normal transition from nitrogen metabolism to starch accumulation-based carbon metabolism, directly affecting tobacco growth and development, resulting in the chemical composition of tobacco leaves is not coordinated, poor maturity, glyco-base ratio out of balance.
Also, as tobacco matures, carbon metabolism and nitrogen metabolism compete with each other for carbon skeletons and ATP, resulting in negative correlations in tobacco leaf yield and quality, so the key to high-quality tobacco production is to coordinate the process of carbon-nitrogen metabolism and balance the distribution of organic carbon.
The formation of the final quality of tobacco leaves is the result of the combination of variety characteristics and ecological factors and cultivation modulation technology, in which varieties determine the strength and coordination of carbon-nitrogen metabolism, ecological conditions determine the style and product accumulation of tobacco leaves, cultivation modulation technology can guarantee and regulate the carbon-nitrogen metabolism process of tobacco plants.
In recent years, there have been more studies on carbon-nitrogen metabolism, but based on the influence of a single factor on carbon-nitrogen metabolism, Zhang Sen and others summarized the influence factors of carbon-nitrogen metabolism and the regulatory measures of cultivation modulation, in order to provide reference for the follow-up study of carbon-nitrogen metabolism.
.