Effect of Soil and Climatic Conditions on Brown Spot Occurrence in Rice Lowland across Four Agro-climatic Zones of Côte d’Ivoire

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dc.contributor.authorAdanvé, J.-F.en_US
dc.contributor.authorKoné, B.en_US
dc.contributor.authorSikirou, R.en_US
dc.contributor.authorDossou-Yovo, E.en_US
dc.contributor.authorOnaga, G.en_US
dc.contributor.authorSorho, F.en_US
dc.date.accessioned2023-07-14T08:03:57Z
dc.date.available2023-07-14T08:03:57Z
dc.date.issued2023-04
dc.description.abstractAims: To evaluate interaction of soil pH and acidity with weather on Rice Brown spot (BS) occurrence in rice lowlands. Study Design: Cross sectional study. Place and Duration of Study: Four distinct rice lowlands belonging to different climatic zones (forest, transitional and savanna) of Côte d’Ivoire during cropping seasons of 2021. Methodology: BS characterization were done in different farmer fields where soil samples were also collected during dry and rainy seasons. Soil silicon and acidity were determined in those samples and rice grain yield at harvest time were recorded in different sites. Weather data related to sites and seasons were used to find out correlations. Results: Occurrence of BS was found in forest zones with scores of 4 and 3 compared to 1 and 2 in savanna and transitional zones, respectively, with seasonal variation. Both rice production and the occurrence of BS were explained by soil parameters in conjunction with climatic parameters. Rainfall (R=0.38) and relative humidity (R=0.64) leaded BS occurrence and decrease of yield. Wind speed (R=0.62) and air maximum temperature (R= 0.63) were the determinant factors affecting rice yields. Si was found to be a component of sustainable soil management that interferes with soil pH in all climatic zones. Combined with Temperature, both soil parameters predicted BS occurrence over 50%. Conclusion: Temperature decrease BS pathogens occurrence whereas high humidity increases its spread. Those parameters combined with silicon which interferes with pH could leads sustainable solutions in BS control. Furthermore, having a deep understanding with rice varietal considerations can significantly improve strategies related to rice cultivation and protection.en_US
dc.identifier.affiliationsfrican Center of Excellence on Climate Change, Biodiversity and Ecosystem Services, Félix Houphouet-Boigny University, Abidjan, Côte d’Ivoireen_US
dc.identifier.affiliationsCrop Protection Laboratory, National Institute of Agricultural Research of Benin, Cotonou, Beninen_US
dc.identifier.affiliationsSoil and Mining Resources Sciences, Félix Houphouet-Boigny University, Abidjan, Côte d’Ivoireen_US
dc.identifier.affiliationsAfrica Rice Center, Abidjan, Côte d’Ivoireen_US
dc.identifier.citationAdanvé J.-F., Koné B., Sikirou R., Dossou-Yovo E., Onaga G., Sorho F.. Effect of Soil and Climatic Conditions on Brown Spot Occurrence in Rice Lowland across Four Agro-climatic Zones of Côte d’Ivoire. Annual Research & Review in Biology. 2023 Apr; 38(4): 46-60en_US
dc.identifier.issn2347-565X
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/219406
dc.languageenen_US
dc.publisherSciencedomain Internationalen_US
dc.relation.issuenumber4en_US
dc.relation.volume38en_US
dc.source.urihttps://doi.org/10.9734/arrb/2023/v38i430581en_US
dc.subjectPrecision agricultureen_US
dc.subjectdisease forecastingen_US
dc.subjectriceen_US
dc.subjectbrown spoten_US
dc.subjectsilicon.en_US
dc.titleEffect of Soil and Climatic Conditions on Brown Spot Occurrence in Rice Lowland across Four Agro-climatic Zones of Côte d’Ivoireen_US
dc.typeJournal Articleen_US
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