Establishment and Application of Regional Division Model for Flue-cured Tobacco Flavor Types Based on Meteorological Factors

In order to reveal the relationship between flavor type of flue-cured tobacco and climate,a meteorological factor-based evaluation model for flue-cured tobacco flavor types was established with stepwise discriminant analysis method involving the meteorological data of 33 typical regions of different flue-cured tobacco flavor types.The model was verified with 480 flue-cured tobacco samples planted across China in 2012.The results showed that the discriminating accuracy of the model was 86.2%.Using the meteorological factors of major flue-cured tobacco growing areas in China and the flavor type of tobacco leaves from each area discriminated by the model,a flavor type map of flue-cured tobacco was obtained,it clarified the distribution areas of flue-cured tobacco of robust,medium and fresh flavor styles.