Indian Society of Genetics & Plant Breeding

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Occurrence of wheat blast in Bangladesh and its implications for South Asian wheat production

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The first recorded occurrence in Asia of wheat blast caused
by Magnaporthe oryzae, pathotype Triticum (synonym
Pyricularia oryzae) occurred in Bangladesh in March 2016.
Crop losses of up to 90% have been reported, with latesown wheat suffering particularly badly. The emergence of
this disease has raised concern in neighboring countries
where wheat represents a significant crop, most notably in
India and Nepal. The existence of effective genetic
resistance is in doubt, so for the moment the sole means of
control is via the application of fungicides and adoption of
beneficial cultural practices. The disease has been endemic
in parts of South America for the last 30 years, so only a
coordinated program of research and development has the
potential to deliver rapid progress in combating the disease.
In addition to evaluating and deploying genetic resistance
and applying fungicides on an occasional basis, some
control could be made possible by altering current crop
rotation practice and/or manipulating the sowing time to
promote disease escape.
 

Keywords: Triticum aestivum, Magnaporthe oryzae pathotype Triticum, resistance, Bangladesh, South Asia

Info

Year: 2017
Volume: 77
Issue: 1
Article DOI: 10.5958/0975-6906.2017.00001.3
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

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Mahender Singh Saharan info_circle
Rashmi Aggrawal info_circle
Paritosh Kumar Malaker info_circle
N. C. D. Barma info_circle
T. P. Tiwari info_circle
Etienne Duveiller info_circle
Pawan Kumar Singh info_circle
Amit Kumar Srivastava info_circle
Kai Sonder info_circle
Ravi Prakash Singh info_circle
Hans Joachim Braun info_circle
Arun Kumar Joshi info_circle

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