Construction and practice of methods for evaluation of quality homogeneity of tobacco stripe in threshing and redrying.

In order to establish the standard of evaluating the quality homogeneity of flue-cured tobacco stripe in threshing and redrying,the tobacco stripe samples from 20 threshing and redrying factories in China were analyzed.The representative indexes of tobacco stripe quality were selected out by the means of gray clustering analysis,every evaluation method was analyzed,and the suitable evaluation objects and standard were collected.The evaluation model of tobacco stripe quality homogeneity was built by using the method of coefficient of variation,and the model was verified by examples.The results indicated that the method of coefficient of variation could be used as the standard of evaluating the quality homogeneity of tobacco stripe in threshing and redrying,and it could be widely spread.