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1382 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 05

    Regulatory effects of topping on K+ flux and gene expression in tobacco roots

    LIANG Taibo(1); GUO Yadi(1); MENG Xiangyu(2); DAI Huaxin(1); ZHAI Zhen(1); WANG Aiguo(1); ZHANG Yanling(1)
    (1) Zhengzhou Tobacco Research of CNTC, Zhengzhou, China; (2) Golden Leaf Manufacturing Center, China Tobacco Henan Industrial Co., Ltd, Zhengzhou, China
    Topping is an important agronomic measure in tobacco field production, but it is a serious artificial injury to tobacco plants and will cause serious potassium loss. However, the variations of K+ flux in tobacco roots after topping and the...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 09

    A novel NAC transcription factor, NtNAC060 enhances the bacterial wilt resistance and salt stress tolerance in tobacco

    LI Xiaoxu(1); PU Wenxuan(1); YI Jianhua(1); GUO Yongfeng(2); GAO Junping(1); WANG Dong(1)
    (1) China Tobacco Hunan Industrial Co., Ltd, Changsha, China; (2) Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
    Bacterial wilt, as a bacterial disease, seriously impacts the growth of tobacco. The NAC transcription factors comprise one of the largest transcription factor families in plants, which play an important role in stress responses and bacterial disease...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 14

    The control effect and mechanism of green manure on soil-borne diseases of tobacco

    LIU Yanxia(1); LI Xiang(2); WANG Jinling(3); PENG Yu(2); LI Lei(4); ZHANG Heng(1); ZHU Jingwei(1); GAO Weichang(1); YAO Yunjing(4)
    (1) Guizhou Academy of Tobacco Science, Guiyang, China; Guizhou Provincial Academician Workstation of Microbiology and Health, Upland Flue-Cured Tobacco Quality & Ecology Key Laboratory of China Tobacco; (2) Guizhou Tobacco Company, CNTC, Guiyang, China; (3) China Tobacco Jiangsu Industrial Co., Ltd, Nanjing, China; (4) Guizhou University, Guiyang, China
    Tobacco soil-borne diseases have caused severe damage to tobacco production in Guizhou Province. The investigation of the effect of different varieties of green manure on suppressing the bacterial wilt pathogen (Ralstonia solanacearum, Rs) and...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 18

    Pathogen identification and biological control of pole rot of flue-cured tobacco caused by Rhizopus arrhizus (syn. R. oryzae)

    LU Canhua(1); GAI Xiaotong(1); SU Jiaen(2); MA Junhong(1); LEI Liping(1); JIANG Ning(1); LIN Zhonglong(3); GAO Chaoyang(4); JIN Yan(1); XIA Zhenyuan(1)
    (1) Yunnan Academy of Tobacco Agriculture Sciences, Kunming, China; (2) Dali Branch of Yunnan Provincial Tobacco Company, Dali, China; (3) China National Tobacco Corporation Yunnan Company, Kunming, China; (4) Yanfang Comprehensive Service Center of Agriculture and Rural Affairs of the Zhanyi District, Qujing, China
    The objective of this study was to identify the pathogen and biological control of pole rot on flue-cured tobacco, which causes damage losses during the yellowing stage of leaf curing in several counties of Dali Bai Autonomous Prefecture of Yunnan...
  5. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 20

    Functional characterization of NIC1-locus in regulating nicotine biosynthesis in tobacco and its applications in low nicotine variety development

    SUI Xueyi; XIE He; WANG Bingwu; TONG Zhijun; SONG Zhongbang; GAO Yulong; ZHANG Yihan; ZHAO Lu; LI Yongping
    Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
    The regulation of nicotine biosynthesis in tobacco is mainly controlled by NIC1 and NIC2 loci in the tobacco genome. These loci are possibly originated from its ancestral diploids. Previously, a N. tomentosiformis originated ethylene response factor...
  6. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 26

    Effects of wheat straw residue and its biochar on the physical properties and enzyme activities of tobacco-growing soil

    WANG Yi(1,2); DU Chuanyin(1); LI Jianlei(3); LIU Zhigang(1); GUAN Ensen(1); WANG Dequan(1); WANG Dahai(2); GAO Kai(1); WANG Shusheng(2)
    (1) Weifang Tobacco Co., Ltd, Weifang, Shandong, China; (2) Tobacco Research Institute, Chinese Academy of Agriculture Sciences, Qingdao, Shandong, China; (3) Shandong Province Tobacco Monopoly Bureau (Company), Jinan, China
    The degradation of Shandong tobacco-planting soil quality, such as soil compaction and microbial activity reduction, has become more and more serious due to the lack of exogenous organic matter input. Therefore, aiming to improve the soil quality and...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 27

    Soil type regulates carbon and nitrogen stoichiometry and mineralization and bacteria following biochar or nitrogen addition

    WANG Huanhuan; SHI Hongzhi; ZHAO Yuanyuan; LIU Guoshun
    College of Tobacco Science, Henan Agricultural University / Tobacco Harm Reduction Research Center of HAU, Zhengzhou 450002, China
    Most studies on the effects of biochar and nitrogen fertilizer on soil carbon (C) and nitrogen (N) mineralization, and microbial C and N content, are restricted to a single tobacco-growing soil type, limiting our understanding of the interactions...
  8. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 39

    Risk assessment of Ralstonia solanacearum to fluazinam and evaluation of combinatory fungicides

    MU Wenjun(1); MA Xiaojing(1); HU Liwei(1); ZHANG Zhigao(2); TANG Lina(3); LI Qiuying(3); HUANG Lei(4); FENG Xiaohu(2); SONG Jizhen(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou, China; (2) Jiangxi Tobacco Company, Fuzhou Branch, Fuzhou, Jiangxi, China; (3) Fujian Institute of Tobacco Science, Fuzhou, China; (4) China Tobacco Guangdong Industrial Co., Ltd, Guangzhou, China
    Tobacco bacterial wilt is a destructive soil-borne vascular disease in tobacco production, but the varieties of effective control bactericides are limited at present. Therefore, it is particularly important to explore fungicides with a unique...
  9. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 46

    Characterization and functional prediction of microbial community in agricultural processing of cigar leaves from Shifang, Sichuan

    ZHANG Qianying(1); CAI W.(1); LIU Y.(2); YE K.Y.(2); ZHANG J.(3); LI D.L.(1)
    (1) Technical Research Center, China Tobacco Sichuan Industrial Co., Ltd, Chengdu, China; (2) Great Wall Cigar Factory, China Tobacco Sichuan Industrial Co., Ltd, Shifang, China; (3) National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
    Shifang, located in Sichuan Province, is known as the hometown of the Chinese cigar. In Shifang, cigar leaf has been cultivated for nearly 400 years. However, microbial community diversity is poorly understood in the agricultural processing of cigar...
  10. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 52

    Effects of exogenous salicylic acid on photosynthesis and nitrogen metabolism of tobacco under drought stress and transcriptome analysis

    FENG Yuqing(1); SHI Hongzhi(1); ZHAO Yuanyuan(1); ZHOU Jun(2); MA Yanjun(2); LI Geng(1)
    (1) College of Tobacco Science / Tobacco Harm Reduction Research Center, Henan Agricultural University, Zhengzhou, China; (2) Beijing Cigarette Factory, Shanghai Tobacco Group Co., Ltd., Beijing, China
    Water is a major ecological factor for the growth, physiological metabolism and quality formation of tobacco. Drought causes not only the decrease of tobacco yield and quality, but also the lowering of nitrogen utilization rate, leading to nitrate...