BGF生物有机肥对辣椒疫霉和茄病镰孢菌的抑菌效果

doi:10.12190/j.issn.2096-1197.2022.01.14

Abstract

Abstract: 【Objective】To study the antimicrobial activity of BGF bio-organic fertilizer on Phytophthora capsici and Fusarium solani.【Methods】BGF bio-organic fertilizer was diluted in a gradient of 1,10,100,1 000,and 10 000 mg/L in potato sucrose agar（PDA）plates,with water as control. The bacteriostatic rate of BGF bio-organic fertilizer on Phytophthora capsici and Fusarium solani was determined using the mycelial growth rate inhibition method,and the EC₅₀ was calculated using the virulence regression equation.【Results】The 10 000 mg/L BGF bio-organic fertilizer had the highest Phytophthora capsici inhibition rate,at 74.93%,followed by 1 000 mg/L,at 56.27%. The 10 000 mg/L BGF bio-organic fertilizer had the highest inhibition rate against Fusarium solani,at 78.54%. At 63.52%,the rate of 1 000 mg/L was the second highest. To Phytophthora capsici and Fusarium solani,the EC₅₀ of BGF bio-organic fertilizer was 401.038 mg/L and 390.077 mg/L,respectively.【Conclusion】Phytophthora capsici and Fusarium solani were both inhibited by BGF bio-organic fertilizer at concentrations of 1 000-10 000 mg/L.

Key words: Capsicum, Biological organic fertilizer, Phytophthora capsici, Fusarium solani, Bacteriostatic rate, Toxicity

CLC Number:

S482.4

HUO Hongli, XI Xianmei, BAI Quanjiang, TUO Debao, SONG Xuefeng, PENG Min, QIU Tingyan, LIU Liru. Antimicrobial activity of BGF bio-organic fertilizer against Phytophthora capsici and Fusarium solani[J].Journal of Northern Agriculture, 2022, 50(1): 101-106.

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URL: https://journal30.magtechjournal.com/bfnyxb/EN/10.12190/j.issn.2096-1197.2022.01.14

https://journal30.magtechjournal.com/bfnyxb/EN/Y2022/V50/I1/101

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Antimicrobial activity of BGF bio-organic fertilizer against Phytophthora capsici and Fusarium solani

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