Abstract
In order to provide a more suitable environment for tobacco leaf growth, this study collected meteorological information and tobacco leaf quality information from the main tobacco-producing counties in the province and conducted relevant analysis to find out the main meteorological factors affecting the growth, development, yield, and quality of upper tobacco leaves. Clarify the suitable climatic conditions for the growth and development of the upper leaves, and clarify the influence of various meteorological factors on the quality of the upper leaves. The results showed that the nicotine and total nitrogen content of the upper leaves were significantly positively correlated with the average daily temperature during the maturity period, and negatively correlated with the rainfall during the maturity period; the rainfall in July was significantly positively correlated with the upper leaf clutter score, which was sufficient in the mature period. Moisture conditions are conducive to alleviating the upper leaf clutter; the number of sunshine hours in August is the main factor affecting the content of aroma substances in the upper leaves, and it is also significantly positively correlated with the content of aroma substances.
Highlights
Tobacco is a commercial cash crop widely grown in the world, and it is very sensitive to the environment [1]
The results showed that the nicotine and total nitrogen content of the upper leaves were significantly positively correlated with the average daily temperature during the maturity period, and negatively correlated with the rainfall during the maturity period; the rainfall in July was significantly positively correlated with the upper leaf clutter score, which was sufficient in the mature period
Moisture conditions are conducive to alleviating the upper leaf clutter; the number of sunshine hours in August is the main factor affecting the content of aroma substances in the upper leaves, and it is significantly positively correlated with the content of aroma substances
Summary
Tobacco is a commercial cash crop widely grown in the world, and it is very sensitive to the environment [1]. A large number of studies have shown that the quality of flue-cured tobacco is the result of the combined effects of genetic factors, ecological environment and cultivation techniques [11] [12] [12]. The ecological environment affects the quality of tobacco leaves, and the climatic factor is one of the important ecological environmental factors that cause the regional distribution of flue-cured tobacco content and yield. For the main tobacco-producing areas in Hubei province, there is no systematic exploration of the effects of climatic factors during the growth period of each field on the quality of flue-cured tobacco upper tobacco. Analyze and find out the main meteorological factors affecting the growth and development, production and quality of upper tobacco leaves, in order to provide references for the production and cultivation of high-quality flue-cured tobacco in Hubei Province
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