Pathogen Identification of Pea Crown Rot and Its Sensitivity to Fungicides
Received date: 2022-07-27
Accepted date: 2022-11-14
Online published: 2022-11-15
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
Yajing Song, Jinwen Ou, Guwen Zhang, Zhijuan Feng, Yuanpeng Bu, Bin Wang, Yaming Gong, Jianqiang Xu, Na Liu . Pathogen Identification of Pea Crown Rot and Its Sensitivity to Fungicides[J]. Chinese Bulletin of Botany, 2023 , 58(1) : 132 -139 . DOI: 10.11983/CBB22169
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