Potential of Fungicide Application to Control Powdery Mildew Caused by Oidium sp. in Mungbean Varieties
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Abstract
This experiment aimed to study the efficacy of fungicide spraying frequency to control the powdery mildew in different varieties of mung beans. The experimental design was split plot in RCB with 4 replications. The main plot comprised fungicide spray frequency including spraying Benomyl 50% WP chemical at the rate of 20 grams per 20 liters of water. (1) one time, (2) three times and (3) no spraying and subplots consisted of mungbean varieties including (1) Kamphaeng Saen 2, (2) DOA.Chai Nat 72, (3) DOA.Chai Nat 84-1, (4) Chai Nat 3, (5) KUML4 and (6) KUML8. The result revealed that there was no certain interaction between mungbean varieties and the fungicide applications. All varieties of mung beans have statistically similar levels of severity in the occurrence of powdery mildew. However, spraying chemicals every 7 days at three times after disease occurrence showed the lowest disease incidence of 29 percent of leaf area infected and yield of all varieties does not differ on average. But spraying chemicals every 7 days at three times showed the highest yield with 127 kilograms per rai, reducing yield loss from powdery mildew by 46 percent.
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This article is published under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0), which allows others to share the article with proper attribution to the authors and prohibits commercial use or modification. For any other reuse or republication, permission from the journal and the authors is required.References
Ngampongsai, S., S. Srisombun and P. Srinives. 2004. Mungbean Mutants Multi-location Trial: Thailand. Paper Presented at the IAEA/RAC Project Progress reviewing Meeting on Mutants Multi-location Trials and Mutation Enhancement of Genetic Diversity. 29 October-3 November 2004. Republic of Korea.
Office of Agricultural Economics. 2023. Information on the Situation of Mung Bean Production. (in Thai)
Phruetthithep, C., S. Ngampongsai and A. Masari. 2012. The Loss of Mungbeam Yield Due to Powdery Mildew Infection. Pages 259-262. In: Proceedings of the 4th National Legume Crop Conference. August 27-29, 2013. Sampran Riverside Hotel, Sam Phran District, Nakhon Pathom Province. (in Thai)
Plant Pathology and Department of Microbiology. 2002. Handbook of Field Crop Diseases. Academic Document of the Plant Disease and Microbiology Division, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok. 105 p. (in Thai)
Surin, P and A. Chinswangwatanakul. 1987. Development of Sampling Models for Assessing Major Diseases of Mungbean. Pages 92-99. In: Annual Research Report 1987, Plant Pathology and Microbiology Division, Department of Agriculture. (in Thai)
Soria, J.A. and F.C. Quebral. 1973. Occurrence and development of powdery mildew on mungbean. Philippine Agric. 57: 158-177.
Tantanapornkul, N., S. Wongkaew and P. Laosuwan. 2005. Effects of powdery mildew on yield, yield components and seed quality of mungbeans. Suranaree J. Sci. Technol. 13(12): 159-162.