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Survey of Rice Blast Disease in Different Districts of Bangladesh During T. Aman 2011

Mohammad Hossain
Senior Scientific Officer
Bangladesh Rice Research Institute, Gazipur-1701

Zakia Rahman Moni
Scientific Officer (Project)
Bangladesh Rice Research Institute, Gazipur-1701

Abstract/ Executive Summary:

Rice blast disease is one of the major disease in Bangladesh.Its appear every season and causes severe damage of rice. For proper management of the disease, to know the distribution and severity of the pathogen is essential. Survey was done in different locations in Bangladesh following SES system. Disease incidence (DI) was ranged from 2% to 90% and severity was ranged from 1-9 across the locations. The highest disease incidence was recorded at Panchagar and Thakugon while the lowest at Rangpur and Sylhet regions. The neck blast infection was higher in aromatic rice and local varieties than HYVs.

Keywords: Survey and Monitoring, Rice diseases, Blast

Location: AEZ1, AEZ2, AEZ9,AEZ20 and AEZ23

Start Date: 01-07-2011

End Date: 30-06-2012

Program Area: Pest Management

Commodity: Rice

Objectives:

To know the geographical distribution and severity of blast disease

Methodology:

A total of 71 rice fields under 15 locations covering five AEZs were surveyed during T. Aman 2011 season. The AEZs were AEZ 1 (Gaibandha, Dinajpur, Panchagar and Thakugon), AEZ 2 (Rangpur and Nilphamary), AEZ 9 (Sherpur, Jamalpur, Mymensingh and Tangail), AEZ 20 (Sylhet, Hobigong and Moulovibazar) AEZ 23 (Chittagong). Most of the fields were covered by BRRI dhan34, Kalogira, Begunbichi, Swarna, Baismuthi, Lalpajam, BRRI dhan32, Joli Aman, Swarno-Musur, Lal Fanja, Dholy Fanja, BR11, Chinigura and Balam. The survey was conducted according to Multi stage Sampling Method.

Source of Information: Proceedings of the BRRI Annual Internal Research Review, 2011-12

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Disease severity of rice blast disease under AEZ1,AEZ2,AEZ9,AEZ20 and AEZ23 was identified which will help in future resistant breeding program.

Knowledge Management: Report/Proceedings