Evaluation of Disease Resistance of Four Tobacco Varieties
- Received Date: 26/07/2022
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Key words:
- tobacco /
- breeding of varieties /
- diseases /
- disease resistance
Abstract: Chongqing is an important tobacco production area. In order to screen the excellent tobacco varieties suitable for production in Chongqing, taking 'Yunyan 87' as a control, a comparative test of disease resistance was carried out with 4 tobacco varieties ('Yunyan 116' 'CF8704' 'NC102' and 'NC297'). In the field survey in Fengdu, Chongqing, 'NC102' and 'CF8704' had the strongest resistance to tobacco mosaic disease, 'NC297' had the strongest resistance to tobacco brown spot disease, and 'NC102' had the strongest resistance to tobacco wildfire disease. Indoor resistance evaluation of tobacco black shank and tobacco Corynespora leaf spot, which did not occur in the field showed that 'NC102' had the strongest resistance to tobacco black shank, and 'NC297' had the best resistance to tobacco Corynespora leaf spot. The results provide a reference basis for the introduction of excellent disease resistant tobacco varieties in Fengdu tobacco production region of Chongqing.