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Improvement of Rice Production under Drought Conditions in West Africa:Application of QTLs in Breeding for Drought Resistance

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Rice science 2022年第6期29卷 512-521页

作者： Kossi Lorimpo ADJAH Maxwell Darko ASANTE Aboubacar TOURE Mawuli AZIADEKEY Francis Osei AMOAKO-ANDOH Michael FREI Yacouba DIALLO komi agboka West African Science Service Center on Climate Change and Adapted Land Use/Climate Change and Agriculture Program IPR/IFRAP.O.Box 224KatibougouMali Council for Scientific and Industrial Research-Crops Research Institute P.O.Box 3785Fumesua-KumasiGhana University of Sciences Techniques and Technologies of Bamako(USTTB)P.O.Box 423BamakoMali International Crops Research Institute for the Semi-Arid Tropics P.O.Box 320BamakoMali University of Lomé(UL) P.O.Box 1515LoméTogo Institute for Agronomy and Plant Breeding of Justus-Liebig-University of Giessen Giessen 35392Germany Polytechnic Rural Institute of Training and Applied Research(IPR/IFRA) P.O.Box 224KatibougouMali Council for Scientific and Industrial Research-College of Science and Technology Department of Plant Resources DevelopmentP.O.Box 3785Fumesua-KumasiGhana

Rice plays a paramount role in food and nutrition security in many West African *** the doubling of production during the last decade,rice consumption has grown faster,creating a deficit between the demand and *** the West African sub-region remains the main rice-producing centre on the continent,production is severely hampered by biotic and abiotic *** is one of the factors that most severely reduce grain yields of *** of production need to be established in order to mitigate yield loss as a result of *** review discusses the effects of drought on rice production in West Africa and its mitigation with an emphasis on the improvement of tolerance to drought *** stability can be achieved by developing drought-tolerant varieties through several processes encompassing profiling of known QTLs and identification of new ones,marker-assisted selection,genomic selection,and extensive multi-locational yield *** suggest a comprehensive strategy for breeding drought-tolerant rice varieties in West Africa.

关键词： West Africa rice drought-tolerant variety QTL high-throughput genotyping

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Quantitative Assessment of Vulnerability to Flood Hazards in Downstream Area of Mono Basin, South-Eastern Togo: Yoto District

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Journal of Geographic Information System 2015年第6期7卷 607-619页

作者： Abravi Essenam Kissi Georges Abbevi Abbey komi agboka Aklesso Egbendewe Département de Géographie WASCAL Université de Lomé Lomé Togo Ecole Supérieure d’Agronomie Université de Lomé Lomé Togo Faculté des Sciences Economiques et de Gestion Université de Lomé Lomé Togo

The population located along Mono River in the Yoto district faces great challenges in terms of repeated flood disasters in recent years. This paper aims at assessing the conditions which influence flood damage in the study area by using indicators to compute a Flood Vulnerability Index (FVI). The study relies on Turner?et al.’s vulnerability framework and distinguishes three main components (exposure, susceptibility and resilience) that allow a more in-depth analysis and interpretation of local indicators. As a result flood disaster in the study area is not only due to the extreme variability in terms of flood magnitude and frequency in the Mono River, but also to the interaction between human and the environment. The lack of vegetation along the river bank, the closeness of households’ farmlands to the river body, the type of construction and the position of settlements, the household size, the low level education of household head, the lack of diversification of livelihood strategies, the lack of adequate flood warning system, the lack of willingness and ability to take responsive actions coupled with inadequate emergency services, are identified as main determinants increasing communities’ vulnerability to flood disaster. Furthermore, the computation of Flood Vulnerability Index (FVI) offers easy comparison of communities’ vulnerability to flood disaster and pinpoints the most vulnerable communities. At the end of the study, flood exposure, susceptibility, resilience and vulnerability maps were generated.

关键词： Assessment Flood Quantitative Vulnerability Downstream Mono River Basin Yoto District

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