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Reaction of Selected Blast Isolates Against Major Blast Resistant Genes

Dr. MAI Khan
Senior Scientific Officer
Plant Pahtology Division, BRRI, Gazipur

Md. Rejwan Bhuiyan
Senior Scientific Officer
Plant Pahtology Division, BRRI, Gazipur

Abstract/ Executive Summary:

Among the preserved 25 isolates, 17 were grown on oat meal agar medium. Due to the bacterial contamination, 8 isolates were not revived from the stock isolate. The reaction patterns of those isolates almost similar with JIRCAS finding. About 70% reactions of test isolates of blast pathogen on mono genic lines were similar with our previous results, these 17 isolates may be selected as differential isolates for further use.

Keywords: Rice, Blast, Isolate, Differential system

Location: BRRI Gazipur

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End Date:

Program Area: Pest Management

Commodity: Diseases

Objectives:

To develop standard set of differential isolates in context of Bangladesh.

Methodology:

Primarily, twenty five isolates were selected as differential isolates from our previous study. Those were re-cultured from stock and tested their pathogenicity using monogenic lines following the standard method at Plant Pathology Laboratory, BRRI, Bangladesh. Disease was scored following 0-5 scale.

Source of Information: Proceedings of the BRRI Annual Internal Review for 2013-14

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Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Selected 17 isolates may be consider as differential blast isolates for resistant breeding program

Knowledge Management: Report/Proceedings