HUBEI AGRICULTURAL SCIENCES ›› 2026, Vol. 65 ›› Issue (8): 146-152.doi: 10.14088/j.cnki.issn0439-8114.2026.08.022

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Study on the appearance quality of flue-cured tobacco selection materials in Yunnan production area

FAN Yun-tao1, LIU Yuan-shang1, LIU Chun-kui2, XU Chun-ping2, TAN Hong-xiang1, ZHAO Zhen-bo2, GUO Xiao-kun1, QU Li-li2, LI Ke-du2   

  1. 1. China Tobacco Hebei Industrial Co., Ltd., Shijiazhuang 050051, China;
    2. College of Tobacco Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
  • Received:2026-04-13 Published:2026-09-02

Abstract: In order to clarify the appearance quality characteristics of flue-cured tobacco selection materials from the Yunnan production area, taking flue-cured tobacco selection materials of eight production areas in Yunnan as the research object, the differences in appearance index scores of tobacco selection samples of the same grades were analyzed, and principal component analysis and correlation analysis were performed on the flue-cured tobacco samples. The results showed that the coefficient of variation of color scores for flue-cured tobacco in the Yunnan production area was the largest, while that of oil scores was the smallest, and there were significant differences in the maturity scores of flue-cured tobacco samples from different production areas. The ranking of the total appearance scores of C1F, C2F, C3F and C4F selected leaf grades for flue-cured tobacco were C1FA > C1F > C1FB > C1FC, C2FA > C2F > C2FB > C2FC, C3FA > C3F > C3FB > C3FC, C4FA > C4F > C4FZ, respectively. The ranking of the total appearance scores for B1F and B2F selected leaf grades were B1FA > B1F > B1FZ, B2FA > B2F > B2FZ, respectively. Most of Yunnan flue-cured tobacco samples were orange, the maturity was mostly ripe, leaf structure was open-firm, the body was medium, the oil was oily, and the overall appearance quality of tobacco leaves was good. There was a significant positive correlation among all appearance indices of the Yunnan flue-cured tobacco samples.

Key words: flue-cured tobacco, leaf selection, appearance quality, Yunnan production area

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