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2022 Volume 1 Issue 1
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GONG Jie, LIU Huidi, LIU Ying, et al. Comparison of Resistance of Different Tobacco[J]. PLANT HEALTH AND MEDICINE, 2022, (1): 61-67. doi: 10.13718/j.cnki.zwyx.2022.01.009
Citation: GONG Jie, LIU Huidi, LIU Ying, et al. Comparison of Resistance of Different Tobacco[J]. PLANT HEALTH AND MEDICINE, 2022, (1): 61-67. doi: 10.13718/j.cnki.zwyx.2022.01.009
shu

Comparison of Resistance of Different Tobacco

  • 1. College of Plant Protection, Southwest University, Chongqing 400715, China;

  • 2. College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin 300392, China;

  • 3. Chongqing Tobacco Research Institute, Chongqing 400711, China

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  • Received Date: 22/10/2021

  • MSC: S435.72

  • Tobacco bacterial wilt is a soil-borne disease caused by Ralstonia solanacearum, which causes huge economic losses. Selection of resistant cultivar is an important way for controlling tobacco bacterial wilt. In order to clarify the differences of resistance in different tobacco cultivars to bacterial wilt, this study evaluated the resistance of different tobacco cultivars against bacterial wilt in disease infected filed of Pengshui for two consecutive years (2020 and 2021). The results showed that the area under the disease progression curves (AUDPC)of the tested resistant tobacco cultivars were significantly lower than that of the susceptible control cultivars 'Honghua Dajinyuan', 'Changbohuang', and 'Cuibi No.1'. At peak incidence in two years(August 15, 2020 and August 22, 2021), 'Yanyan 97' and '6036' showed the high resistance to bacterial wilt. The disease index of 'Yanyan 97' for two consecutive years was 12.73 and 3.89, respectively. The disease index of 6036 for two consecutive years were 3.70 and 15.65, respectively. In summary, this study confirmed that 'Yanyan 97' and '6036' have the strongest resistance to bacterial wilt, and the resistance is stable. This result lays the foundation for future bacterial wilt resistance breeding.
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Comparison of Resistance of Different Tobacco

  • Received Date: 22/10/2021

Abstract: Tobacco bacterial wilt is a soil-borne disease caused by Ralstonia solanacearum, which causes huge economic losses. Selection of resistant cultivar is an important way for controlling tobacco bacterial wilt. In order to clarify the differences of resistance in different tobacco cultivars to bacterial wilt, this study evaluated the resistance of different tobacco cultivars against bacterial wilt in disease infected filed of Pengshui for two consecutive years (2020 and 2021). The results showed that the area under the disease progression curves (AUDPC)of the tested resistant tobacco cultivars were significantly lower than that of the susceptible control cultivars 'Honghua Dajinyuan', 'Changbohuang', and 'Cuibi No.1'. At peak incidence in two years(August 15, 2020 and August 22, 2021), 'Yanyan 97' and '6036' showed the high resistance to bacterial wilt. The disease index of 'Yanyan 97' for two consecutive years was 12.73 and 3.89, respectively. The disease index of 6036 for two consecutive years were 3.70 and 15.65, respectively. In summary, this study confirmed that 'Yanyan 97' and '6036' have the strongest resistance to bacterial wilt, and the resistance is stable. This result lays the foundation for future bacterial wilt resistance breeding.

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