Guiyan 36 is a new flue-cured tobacco variety bred with the primary objectives of disease resistance,high quality,and suitable yield.The variety was developed by crossing the self-bred line 9111 and Anyan No.3(F1)as the female parent and K730 as the male parent,combined with successive generations in the southern breeding program.The field growth of this variety is relatively vigorous,with a field growth period of 128.75 days,an average topping height of 119.80 cm,and 19.91 harvestable leaves.It shows moderate resistance to bacterial wilt and black shank,with better resistance to bacterial wilt,brown spot,and PVY compared to K326.The average yield is 2127.35kg/hm2 with a value of 49073.60 yuan/hm2,an average price of 23.11 yuan/kg,and a high-grade tobacco rate of 41.28%.The chemical composition is well-coordinated,equivalent to or slightly better than K326 and Yunyan 87.The appearance quality of the raw tobacco is better than K326 and slightly inferior to Yunyan 87.The sensory quality is superior to K326 and comparable to Yunyan 87.Guiyan 36 is an excellent new variety that balances quality,resistance,and yield,suitable for promotion and planting in the Guizhou tobacco-growing areas and similar regions.
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