Sclerotia of rice false smut disease in Bangladesh

It is perceived that sclerotia of the pathogen, in addition to chlamydospores, play an important role in the epidemiology of rice false smut disease. The propagule has been identified only in five rice growing countries of the world, and never recorded in Bangladesh. This study was undertaken to ide...

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Main Authors: Bodrun Nessa, Moin Us Salam, Md Abul Kashem
Format: Article
Language:English
Published: Farm to Fork Foundation 2023-09-01
Series:Fundamental and Applied Agriculture
Subjects:
Online Access:https://www.f2ffoundation.org/faa/?mno=142466
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author Bodrun Nessa
Moin Us Salam
Md Abul Kashem
Md Abul Kashem
author_facet Bodrun Nessa
Moin Us Salam
Md Abul Kashem
Md Abul Kashem
author_sort Bodrun Nessa
collection DOAJ
description It is perceived that sclerotia of the pathogen, in addition to chlamydospores, play an important role in the epidemiology of rice false smut disease. The propagule has been identified only in five rice growing countries of the world, and never recorded in Bangladesh. This study was undertaken to identify the sclerotia, quantify their concentration on smut balls and estimate the time of its formation. Intensive field-by-field monitoring was conducted during 2014, 2015 and 2016 at experimental farm of the Bangladesh Rice Research Institute, Gazipur. After rigorous search, sclerotia of rice false smut pathogen was identified on the 14th of December 2014. The was observed in the later part of crop maturity during the ‘T. Aman' season (early-November to mid-December) on olivaceous greenish-black smut balls, but not on orange smut ball. During the three years study, on average, 30.61±9.79% (± is 95%confidence interval) olivaceous greenish-black smut balls borne sclerotia, the average number being 1.63±0.09 per sclerotia-bearing ball. The ‘threshold temperature' for sclerotia formation was estimated as above 11°C difference in day-night temperature. Consistence presence and high concentration of sclerotia in smut balls signify its role in the epidemiology of the disease in the agroecology of Bangladesh. [Fundam Appl Agric 2023; 8(3.000): 580-589]
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spelling doaj.art-7cbaade75b4a4b0684491869022c16a42023-11-15T14:27:54ZengFarm to Fork FoundationFundamental and Applied Agriculture2518-20212415-44742023-09-018358058910.5455/faa.142466142466Sclerotia of rice false smut disease in BangladeshBodrun Nessa0Moin Us Salam1Md Abul Kashem2Md Abul KashemDepartment of Plant Pathology and Seed Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh Freelance Consultant (Agricultural Research, Development and Modelling), 115/3 East Bhurulia, Joydebpur, Gazipur-1700, Bangladesh Department of Soil Science, Sylhet Agricultural University, Sylhet-3100, BangladeshIt is perceived that sclerotia of the pathogen, in addition to chlamydospores, play an important role in the epidemiology of rice false smut disease. The propagule has been identified only in five rice growing countries of the world, and never recorded in Bangladesh. This study was undertaken to identify the sclerotia, quantify their concentration on smut balls and estimate the time of its formation. Intensive field-by-field monitoring was conducted during 2014, 2015 and 2016 at experimental farm of the Bangladesh Rice Research Institute, Gazipur. After rigorous search, sclerotia of rice false smut pathogen was identified on the 14th of December 2014. The was observed in the later part of crop maturity during the ‘T. Aman' season (early-November to mid-December) on olivaceous greenish-black smut balls, but not on orange smut ball. During the three years study, on average, 30.61±9.79% (± is 95%confidence interval) olivaceous greenish-black smut balls borne sclerotia, the average number being 1.63±0.09 per sclerotia-bearing ball. The ‘threshold temperature' for sclerotia formation was estimated as above 11°C difference in day-night temperature. Consistence presence and high concentration of sclerotia in smut balls signify its role in the epidemiology of the disease in the agroecology of Bangladesh. [Fundam Appl Agric 2023; 8(3.000): 580-589]https://www.f2ffoundation.org/faa/?mno=142466sclerotiaolivaceous greenish-black smut ballsrice false smutustilaginoidea virensvillosiclava virens
spellingShingle Bodrun Nessa
Moin Us Salam
Md Abul Kashem
Md Abul Kashem
Sclerotia of rice false smut disease in Bangladesh
Fundamental and Applied Agriculture
sclerotia
olivaceous greenish-black smut balls
rice false smut
ustilaginoidea virens
villosiclava virens
title Sclerotia of rice false smut disease in Bangladesh
title_full Sclerotia of rice false smut disease in Bangladesh
title_fullStr Sclerotia of rice false smut disease in Bangladesh
title_full_unstemmed Sclerotia of rice false smut disease in Bangladesh
title_short Sclerotia of rice false smut disease in Bangladesh
title_sort sclerotia of rice false smut disease in bangladesh
topic sclerotia
olivaceous greenish-black smut balls
rice false smut
ustilaginoidea virens
villosiclava virens
url https://www.f2ffoundation.org/faa/?mno=142466
work_keys_str_mv AT bodrunnessa sclerotiaofricefalsesmutdiseaseinbangladesh
AT moinussalam sclerotiaofricefalsesmutdiseaseinbangladesh
AT mdabulkashem sclerotiaofricefalsesmutdiseaseinbangladesh
AT mdabulkashem sclerotiaofricefalsesmutdiseaseinbangladesh