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Effect of temperature and humidity regimes on grain mold sporulation and seed quality in sorghum (Sorghum bicolor (L.) Moench)

dc.contributor.authorTonapi, V.A.
dc.contributor.authorMundada, R.R.
dc.contributor.authorNavi, S.S.
dc.contributor.authorReddy, R.K.
dc.contributor.authorThakur, R.P.
dc.contributor.authorBandyopadhyay, Ranajit
dc.contributor.authorSeetharama, N.
dc.date.accessioned2019-12-04T11:19:31Z
dc.date.available2019-12-04T11:19:31Z
dc.date.issued2007
dc.identifier.citationTonapi, V.A., Mundada, R.R., Navi, S.S., Reddy, R.K., Thakur, R.P., Bandyopadhyay, R., ... & Seetharama, N. (2007). Effect of temperature and humidity regimes on grain mold sporulation and seed quality in sorghum (Sorghum bicolor (L.) Moench). Archives of Phytopathology and Plant Protection, 40(2), 113-127.
dc.identifier.issn0323-5408
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3480
dc.description.abstractGrain mold, induced by a number of non-specific fungi, causes substantial loss to seedgrain yield and quality in sorghum (Sorghum bicolor (L.) Moench). Fungal sporulation and grain mold severity are greatly influenced by temperature and relative humidity (RH) levels. We studied the effects of three incubation temperatures (25, 27 and 288C) and two sets of RH levels (first set: 85, 90, 95, 98, and 100%, second set: 95, 96, 97, 98, 99 and 100%) on sporulation and grain mold severity in three major mold fungi (Curvularia lunata, Fusarium moniliforme, and Bipolaris australiensis) and on four each of resistant, moderately resistant and susceptible sorghum genotypes for sporulation and mold severity of major fungi. Results indicated that both fungal sporulation and grain mold severity increased on most sorghum genotypes with increasing incubation temperature from 25 – 288C and RH levels from 95 –98%. A linear relationship was observed among RH levels, grain mold severity and fungal sporulation. The highest sporulation of all the three fungi occurred at 288C and 98% RH after 5 days of incubation. Among the three fungi, C. lunata grew and sporulated faster than B. australiensis and F. moniliforme, in that order. Among the sorghum genotypes, IS 25017 supported the least sporulation and had the lowest mold severity, followed by IS 8545 and PVK 801. Seed quality parameters, such as seed germination, seedling vigor index, field emergence potential, dehydrogenase and þ-amylase activities declined significantly with increasing temperature and RH levels that supported heavy sporulation and grain colonization.
dc.language.isoen
dc.subjectGrain Mold
dc.subjectSeed Quality
dc.subjectSporulation
dc.subjectSorghum Bicolor
dc.subjectFusarium Moniliforme
dc.titleEffect of temperature and humidity regimes on grain mold sporulation and seed quality in sorghum (Sorghum bicolor (L.) Moench)
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationNational Research Centre for Sorghum, India
cg.contributor.affiliationUniversity of Pune
cg.contributor.affiliationIowa State University
cg.contributor.affiliationInternational Crops Research Institute for the Semi-Arid Tropics
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAsia
cg.coverage.regionAcp
cg.coverage.regionAfrica
cg.coverage.regionSoutheast Asia
cg.coverage.regionNorth America
cg.coverage.regionWest Africa
cg.coverage.countryIndia
cg.coverage.countryUnited States
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectClimate Change
cg.iitasubjectDisease Control
cg.iitasubjectFarm Management
cg.iitasubjectGrain Legumes
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Production
cg.accessibilitystatusLimited Access
local.dspaceid95451
cg.identifier.doihttps://doi.org/10.1080/03235400500355626


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