Adaptability analysis of flue-cured tobacco varieties of Yunyan under the different climate types of Honghe areas
ZHANG Lu-min, YANG Kang, LI Yan, YONG Rong-jing, LIU Chao, YIN Qi, LYU Kai, OUYANG Cheng-ren
2025, 64(11):
110-118.
doi:10.14088/j.cnki.issn0439-8114.2025.11.014
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To identify the optimal flue-cured tobacco varieties for different agroclimatic regions in the Honghe tobacco-growing area, this study systematically evaluated the adaptability of four varieties, i.e., Yunyan 87, Yunyan 105, Yunyan 116, and Yunyan 121, across representative climatic zones in terms of tropical southern Yunnan climate in Mengzi, mid-subtropical climate in Mile, and north-subtropical climate in Luxi. Field experiments were conducted to analyze differences in agronomic traits, yield, economic value, chemical composition, and sensory quality among the varieties. The results revealed that, climate significantly influenced tobacco growth, leaf quality, and smoking quality, with the effective accumulated temperature playing a critical role in sugar accumulation and aroma concentration in tobacco leaves. The performance of tobacco varieties varied significantly due to regional climate differences. Yunyan 121 and 116 exhibited superior agronomic traits, yields, economic values, sugar differences, and nitrogen-alkaloid ratios than Yunyan 105 and 87 in Mengzi site. Yunyan 116 performed better than the other three varieties in Mile and Luxi sites. Yunyan 116, 87, and 105 generally performed better in these regions than in Mengzi site. Yunyan 121 showed a declining trend in performance with increasing latitude, performing best in Mengzi, followed by Mile, and relatively weaker in Luxi. Gray correlation analysis further confirmed that Yunyan 121 and 116 were the best-performing varieties in Mengzi, whereas Yunyan 116 was the most suitable for Mile and Luxi. In conclusion, Yunyan 116 and 121 demonstrated strong adaptability across the three tested sites. Specifically, Yunyan 121 was recommended for Mengzi, whereas Yunyan 116 was the optimal choice for Mile and Luxi under the experimental conditions, providing a scientific basis for variety selection in the Honghe tobacco-growing area.
