A review on crop losses, epidemiology and disease management of rice brown spot to identify research priorities and knowledge gaps

Article

Barnwal, M. K., Kotasthane, A., Magculia, N., Mukherjee, P. K., Savary, S., Sharma, A. K., Singh, H. B., Singh, U. S., Sparks, A. H., Variar, M. and Zaidi, N.. 2013. "A review on crop losses, epidemiology and disease management of rice brown spot to identify research priorities and knowledge gaps." European Journal of Plant Pathology. 136 (3), pp. 443-457. https://doi.org/10.1007/s10658-013-0195-6
Article Title

A review on crop losses, epidemiology and disease management of rice brown spot to identify research priorities and knowledge gaps

ERA Journal ID2587
Article CategoryArticle
AuthorsBarnwal, M. K. (Author), Kotasthane, A. (Author), Magculia, N. (Author), Mukherjee, P. K. (Author), Savary, S. (Author), Sharma, A. K. (Author), Singh, H. B. (Author), Singh, U. S. (Author), Sparks, A. H. (Author), Variar, M. (Author) and Zaidi, N. (Author)
Journal TitleEuropean Journal of Plant Pathology
Journal Citation136 (3), pp. 443-457
Number of Pages15
Year2013
PublisherSpringer
Place of PublicationNetherlands
ISSN0929-1873
1573-8469
Digital Object Identifier (DOI)https://doi.org/10.1007/s10658-013-0195-6
Web Address (URL)http://link.springer.com/article/10.1007%2Fs10658-013-0195-6
Abstract

Rice brown spot (BS) is a chronic disease that affects millions of hectares of rice every growing season, grown by some of the most resource-poor farmers. Despite its widespread occurrence and impact, much still needs to be understood about BS. Reported yield losses in relative terms vary widely from 4 to 52 %. However, accurate, systematic estimates are lacking. BS is conventionally perceived as a secondary problem that reflects rice crops that experience physiological stresses, e.g. drought and poor soil fertility, rather than a true infectious disease. Much remains to be understood about the mechanisms leading to epidemics and crop losses. Quantitative and qualitative knowledge gaps exist in our understanding of the epidemiological processes, sources of resistance and biocontrol methods. In this review we identify several of these gaps, which if filled, could lead to a strong impact on the management of brown spot. We also use the architecture of a simulation model to position and prioritize these knowledge gaps, assess the epidemiological consequences of disease management options on BS monocyclic processes and explore the impact changing production situations on this important disease.

KeywordsBipolaris oryzae, Oryza sativa, systems analysis
ANZSRC Field of Research 2020310805. Plant pathology
300207. Agricultural systems analysis and modelling
300409. Crop and pasture protection (incl. pests, diseases and weeds)
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Byline AffiliationsBirsa Agricultural University, India
Indira Gandhi Krishi Vishwavidyalaya, India
International Rice Research Institute, Philippines
Bhabha Atomic Research Centre, India
G.B. Pant University of Agriculture and Technology, India
Banaras Hindu University, India
International Rice Research Institute, India
Central Rice Research Institute, India
Institution of OriginUniversity of Southern Queensland
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