Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Assessment of Seed Borne Pathogens of Sesame

R. Momotaz
Plant Pathology Division, BARI

R.Islam
Plant Pathology Division, BARI

A. Ayub
Plant Pathology Division, BARI

M.Arifunnaher
Plant Pathology Division, BARI

M. A. Rahman
Plant Pathology Division, BARI

Abstract/ Executive Summary:

Twenty one farmers saved sesame seed samples were collected from Khulna, Dinajpur and Potuakhali District of Bangladesh for testing their health status. Fusarium, Aspergilus flavus , Aspergilus niger, Epicoccum, Rhizopus, Alternaria, Penicillium, Colletotrichum, Drechslera tritici comprising 7 species were found associated with the sesame seeds. Among them, the predominant was Aspergilus niger which is associated with 44.8 % seed samples followed by Aspergilus flavus (24.8%). The least incidence (0.8 %) was observed infected by Alternaria Penicillium, Rhizopus Epicoccum and Colletotrichum sp. The highest percent germination of seeds were recorded by 94.4% collected from Prosad para Dinajpur followed by Shimolbari Dinajpur. The lowest germination of seeds were recorded in samples collected from Khulna and Poschim Lebohkali at Potuakhali.

Keywords: Seed borne pathogens, Sesame, Integrated diseases management, Fungi

Location: Khulna, Dinajpur and Potuakhali

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Pest Management

Commodity: Diseases, Sesame

Objectives:

The aim of this study was to identify seed-borne pathogen of sesame in order to aware the farmers’ about sesame diseases were to develop an integrated diseases management option in future..

Methodology:

Twenty one seed samples of farmer saved sesame seed were collected from different locations of Khulna, Dinajpur and Potuakhali district of Bangladesh. The samples were stored at 5⁰C until further use. For the detection of seed borne fungi, the blotter method was used (ISTA, 2001) and plated hundred twenty five seed per sample. Three pieces of blotter paper were soaked in tap water and placed in plastic petri- dishes (9 cm diameter), 25 seeds were plated per dish and incubated for seven days at 25 ⁰C following 12 hr light and darkness. Seeds were then examined for fungal growth under a stereo microscope. Pathogen were identified by their morphological characters like color, structure of mycelium ,types of spores and fruiting bodies using a compound microscope. Prevalence of pathogens were recorded from the infected seeds samples. Germination percent was also recorded.

Source of Information: Annual Research Report, Plant Pathology Division, BARI--2013-14

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Eight genera of fungi were isolated and identified such as. Alternaria sesamicola, Aspergilus flavu, Aspergilus niger, Epicochum, Rhizopus stolonifer, Fusarium, Penicillium from sesame seeds. The percent of seed borne infection ranged 0.8 % to 44.88%. The highest incidence of pathogen recorded was Aspergilus flavus at Ullapara in Khulna. On the other hand, germination was recorded from 0% to 94.4%. The highest percent germination were found in seeds collected from Prosad para Dinajpur (94.4%) but seeds collected from Khulna and Poschim Lebohkali of Patuakhali was failed to germinate. This seed-borne pathogens associated in sesame seeds of various locations may cause crop failure as some of them failed to germinate. Providing information through bulletin to farmers of the selected locality. could be aware about the seed-borne diseases of sesame.

Knowledge Management: Report/Proceedings