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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.author Adanvé, Jean-Fabrice
dc.contributor.author Koné, Brahima
dc.contributor.author Sikirou, Rachidatou
dc.contributor.author Dossou-Yovo, Elliott
dc.contributor.author Onaga, Geoffrey
dc.contributor.author Sorho, Fatogoma
dc.date.accessioned 2023-09-05T12:18:39Z
dc.date.available 2023-09-05T12:18:39Z
dc.date.issued 2023-05
dc.identifier.uri https://repository.rsif-paset.org/xmlui/handle/123456789/278
dc.description Journal Article en_US
dc.description.abstract Aims: 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.publisher Annual Research & Review in Biology en_US
dc.subject Precision agriculture disease forecasting rice brown spot silicon en_US
dc.title Effect of Soil and Climatic Conditions on Brown Spot Occurrence in Rice Lowland across Four Agro-climatic Zones of Côte d’Ivoire en_US
dc.type Article en_US


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