The Research of Inhibition Mechanism and the Application on Botrytis cinerea of 5% Potash Alum Water Solution

Abstract:

Botrytis cinerea is a necrotrophic fungus that affects many plant species requiring new methods of control. In the present investigation, efficacy of potash alum, a traditionally known double salt in Indian and Chinese medicine system, was tested against fourteen plant pathogenic fungi, inhibition mechanism and field efficacy of 5% potash alum water solution (M1) against tomato gray mold caused by B. cinerea. The inhibition spectrum tests showed that M1 had some inhibition effect against fourteen pathologic fungi by adopting mycelium growth rate method. M1 had an inhibition rate of 81.5%, 100%, 100% and 93.58% against B. clnerea, P. aphanidermatum, F. equiset and S. sclerotiorum respectively. M1 could effectively inhibit mycelial growth, spores production and germination of B. cinerea. The results preliminary showed that M1 had no effect on tomato growth. Tomato gray mold caused by B. cinerea had effectively been prevented by using M1 with field efficacy, which control effect was 78.66%. So the study lay the groundwork for further research and application.

• Periodical: Advanced Materials Research (Volume 647)
• Pages: 548-553
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.647.548
• Online since: January 2013
• Authors: Yong Gang Li, Qi Xin Xi, Sheng Yan Wen, Ying Mei Li
• Keywords: Botrytis cinerea, Field Efficacy, Inhibition Mechanism, Potash Alum

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