<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "The Role of Drought Stress on Aflatoxin Contamination\r\nin Groundnuts (Arachis hypogea L.) and Aspergillus\r\nflavus Population in the Soil"^^ . "Aflatoxins are naturally occurring toxic chemical substances that are produced by fungal species called Aspergillus flavus.\r\nThe toxic substances are secondary metabolites, which contaminate groundnut while growing in the field and also post-harvest.\r\nDrought stress is one of the factors that contribute to increased aflatoxin levels in groundnut during field production. This study was\r\nconducted in a screen house at ICRISAT-Chitedze Agricultural Research Station, Malawi to investigate the effects of drought on\r\naflatoxin contamination and A.flavus population in the soil. Four drought stress levels; prolonged (4 weeks), min (3 weeks), mild (2\r\nweeks) and no drought were imposed on five groundnut varieties at pod filling stage. Soil samples were collected from each plot four\r\ntimes; at planting, beginning of drought, end of drought and at harvest. Aflatoxin levels in groundnut grain samples were estimated by\r\nuse of neogenstrips read with mobile assay tablet reader. Population densities of A.flavus in soil samples collected from the plots were\r\nestimated using serial dilutions plated on the selective media, modified dichloran Rose Bengal (MDRB) and quantify A.flavus within 3\r\ndays after incubation at 37°C.The results showed that there were significant differences in aflatoxin contamination between drought\r\nstress levels (p = 0.011). High aflatoxin contamination was observed under prolonged drought (22.0 ppb) compared to and no drought\r\ntreatment (1.5 ppb). None of the varieties used in the study showed either resistance or susceptibility to aflatoxin contamination under\r\ndrought or adequate soil moisture. The results also showed that there were significant differences in A.flavus population at drought\r\nperiod and harvesting time and the mean population of A.flavus in prolonged drought at end of stress and harvesting were 8511 and\r\n6044 cfu/g of soil respectively. It was concluded that drought contribute to aflatoxin contamination in groundnut, and also increased the\r\nA.flavus population in soil and also at harvesting."^^ . "2017-12" . . "3" . "5-6" . . "Academic Star Publishing Company"^^ . . . "Modern Agricultural Science and Technology"^^ . . . "23759402" . . . . . . . . . . . . . . . . . . . . . . . . . "C B"^^ . "Sibakwe"^^ . "C B Sibakwe"^^ . . "R L"^^ . "Brandenburg"^^ . "R L Brandenburg"^^ . . "T"^^ . "Kasambara-Donga"^^ . "T Kasambara-Donga"^^ . . "W G"^^ . "Mhang"^^ . "W G Mhang"^^ . . "W A B"^^ . "Msuku"^^ . "W A B Msuku"^^ . . "D L"^^ . "Jordan"^^ . "D L Jordan"^^ . . "S M C"^^ . "Njoroge"^^ . "S M C Njoroge"^^ . . . . . . "The Role of Drought Stress on Aflatoxin Contamination\r\nin Groundnuts (Arachis hypogea L.) and Aspergillus\r\nflavus Population in the Soil (PDF)"^^ . . . . . "The Role of Drought Stress on Aflatoxin Contamination.pdf"^^ . . . "The Role of Drought Stress on Aflatoxin Contamination\r\nin Groundnuts (Arachis hypogea L.) and Aspergillus\r\nflavus Population in the Soil (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "The Role of Drought Stress on Aflatoxin Contamination\r\nin Groundnuts (Arachis hypogea L.) and Aspergillus\r\nflavus Population in the Soil (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "The Role of Drought Stress on Aflatoxin Contamination\r\nin Groundnuts (Arachis hypogea L.) and Aspergillus\r\nflavus Population in the Soil (Other)"^^ . . . . . . "preview.jpg"^^ . . . "The Role of Drought Stress on Aflatoxin Contamination\r\nin Groundnuts (Arachis hypogea L.) and Aspergillus\r\nflavus Population in the Soil (Other)"^^ . . . . . . "medium.jpg"^^ . . . "The Role of Drought Stress on Aflatoxin Contamination\r\nin Groundnuts (Arachis hypogea L.) and Aspergillus\r\nflavus Population in the Soil (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #10450 \n\nThe Role of Drought Stress on Aflatoxin Contamination \nin Groundnuts (Arachis hypogea L.) and Aspergillus \nflavus Population in the Soil\n\n" . "text/html" . . . "Abiotic Stress"@en . . . "Soil"@en . . . "Groundnut"@en . . . "Drought"@en . . . "Aflatoxins"@en . .