Chinese Bulletin of Botany ›› 2023, Vol. 58 ›› Issue (1): 132-139.DOI: 10.11983/CBB22169

Special Issue: 杂粮生物学专辑 (2023年58卷1期)

• EXPERIMENTAL COMMUNICATIONS • Previous Articles     Next Articles

Pathogen Identification of Pea Crown Rot and Its Sensitivity to Fungicides

Yajing Song1,2, Jinwen Ou2,3, Guwen Zhang2, Zhijuan Feng2, Yuanpeng Bu2, Bin Wang2, Yaming Gong2, Jianqiang Xu1,*(), Na Liu2,*()   

  1. 1College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471003, China
    2Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China, Ministry of Agriculture and Rural Affairs, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    3College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China

Abstract: Pea (Pisum sativum) is one of the most important economic crops of beans in China. The occurrence of diseases will cause great economic losses in pea production. Through morphological observation, molecular identification and pathogenicity determination, the results showed that the three kinds of pathogenic fungi causing pea crown rot were Fusarium oxysporum, Alternaria brassicae and F. grosmichelii, among which F. oxysporum was the most pathogenic, with the isolation frequency of 53.6%. The results of indoor toxicity measurement showed that five fungicides had inhibitory effects on the mycelial growth of three kinds of pathogenic bacteria, among which, the inhibition effect of fludioxonil and tebuconazole have top results. The results provide a scientific basis for the prevention and control of pea crown rot.

Key words: pea, crown rot, isolation and identification, fungicides, sensitivity determination