Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (7): 100-105.doi: 10.11924/j.issn.1000-6850.casb2020-0039

Special Issue: 生物技术 植物保护

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Preliminary Study on Physiological Characteristics and Disease Control Effect of Huanglong Vaccine (HB-1) in Tomato Seedling Stage

Li Xurui1,2(), Hu Xuefang1,2, Sun Hao1,2, Pei Haisheng1,2, Deng Zhongxian3, Cao Jingxia4, Wang Shikui1,2()   

  1. 1Academy of Agricultural Planning and Engineering, Beijing 100125
    2Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Beijing 100121
    3Science and Technology Committee of Liaoning Association of Retired-Professors, Shenyang 110000
    4Agricultural and Rural Bureau of Mengla County, Xishuangbanna Dai Autonomous Prefecture, Yunnan Province, Xishuangbanna Yunnan 666100
  • Received:2020-04-26 Revised:2020-07-24 Online:2021-03-05 Published:2021-03-17
  • Contact: Wang Shikui E-mail:surralee@163.com;wosk1963@shou.com

Abstract:

To clarify the effects of Huanglong vaccine (HB-1) on tomato physiological characteristics and growth, tomato virus disease and early blight, through laboratory biological active determination experiments, we determined the effects of different concentrations of HB-1 on tomato apparent traits, peroxidase (POD) activity and malondialdehyde (MDA) content in tomato leaf; through field experiments, the control efficiency of HB-1 on tomato virus disease and early blight was determined. The results of laboratory experiments showed that HB-1 diluted 1000-fold, 2000-fold, and 3000-fold solutions could significantly increase POD activity and reduce MDA content. Among them, compared with that of control, the POD activity was more than 7 times higher under 2000-fold treatment, and the disease resistance effect was extremely significant. HB-1 could significantly increase tomato seedling plant height, stem diameter and leaf number under the dilution of 1000-3000 folds, and promote tomato seedling growth. In field experiments, the HB-1 diluted 800-fold solution had a 96.40% and 70.30% control efficiency on tomato virus disease and early blight, respectively. It shows that HB-1 has a good control efficiency on tomato virus disease and early blight within the test dilution range, and could obviously promote the growth of tomato seedlings and increase POD activity. HB-1 is suitable for the prevention and treatment of tomato virus disease and early blight, and has certain development and promotion value.

Key words: Huanglong vaccine (HB-1), nanoscale iodine, tomato virus disease, tomato early blight, peroxidase (POD) activity, malondialdehyde (MDA) content

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