Screening appropriate flue-cured tobacco varieties for Zhengan base of Guangxi Tobacco Industrial Company

【Objective】Appropriate tobacco varieties for Zheng'an base were screened to provide references for sustainable development of flue-cured tobacco production. 【Method】Biological traits, agronomic performance and disease of eight fluecured tobacco cultivars in Zheng'an base were investigated. Economic benefits, quality, appearance, chemical components and sensory quality in eight varieties were analyzed and compared. 【Result】Among the eight cultivars, KRK 26, Yunyan 97, Guiyan 4, Nanjiang 3 and Yunyan 202 varieties had longer growth duration, which was beneficial for dry matter accumulation and transition in field. KRK 26, Yunyan 97 and Guiyan 4 had strong growth vigor in early period and medium growth vigor in later period, which was consistent to growth rhythm of fine flue-cured tobacco. Compared to other varieties, Guiyan 4 had better disease resistance and showed low disease incidence in field. It also exhibited best tobacco leaf quality, output, mean price and economic benefits. Guiyan 4 had appropriate and harmonious chemical components, superior appearance and sensory quality, and good aroma. 【Conclusion】Considering all factors, it suggested that Guiyan 4 should be extended in Zheng'an tobacco base.