Rice plays a paramount role in food and nutrition security in many West African countries.Despite the doubling of production during the last decade,rice consumption has grown faster,creating a deficit between the dema...Rice plays a paramount role in food and nutrition security in many West African countries.Despite the doubling of production during the last decade,rice consumption has grown faster,creating a deficit between the demand and supply.Although the West African sub-region remains the main rice-producing centre on the continent,production is severely hampered by biotic and abiotic stresses.Drought is one of the factors that most severely reduce grain yields of rice.Systems of production need to be established in order to mitigate yield loss as a result of drought.This 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 stress.Yield 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 trials.We suggest a comprehensive strategy for breeding drought-tolerant rice varieties in West Africa.展开更多
Lowland rice production is highly vulnerable to extreme temperature as a result of climate change. The study analyses farmer’s perception about climate change, management practice and their on-farm adoption strategie...Lowland rice production is highly vulnerable to extreme temperature as a result of climate change. The study analyses farmer’s perception about climate change, management practice and their on-farm adoption strategies at the rice fields of Sapu and Kuntaur study location. The selected villages were the main rice production area, where rice is a monoculture crop. Focus group discussion was held with twenty rice growing farmers at Sapuand Kuntaur, and these were divided into five groups. Personal interview and key informant involves the two village head, two youth development chairpersons (VDC) and the extension worker overseeing both villages. This was done to gain in-depth knowledge on the subject matter. The analysis results indicated that more than 50% of the rice growing farmers were female and do not undergo formal education. More than 70% of them having perceived knowledge on the causes of climate change, inorganic fertilizer use, transplanting of rice seedlings, use of improved rice varieties, and on-farm coping strategies such as changing of cropping calendar and the use of pesticides to cope with current and future climate situation.展开更多
基金supported by the Federal Ministry of Education and Research of Germany through the West African Science Service Center on Climate Change and Adapted Land Use
文摘Rice plays a paramount role in food and nutrition security in many West African countries.Despite the doubling of production during the last decade,rice consumption has grown faster,creating a deficit between the demand and supply.Although the West African sub-region remains the main rice-producing centre on the continent,production is severely hampered by biotic and abiotic stresses.Drought is one of the factors that most severely reduce grain yields of rice.Systems of production need to be established in order to mitigate yield loss as a result of drought.This 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 stress.Yield 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 trials.We suggest a comprehensive strategy for breeding drought-tolerant rice varieties in West Africa.
文摘Lowland rice production is highly vulnerable to extreme temperature as a result of climate change. The study analyses farmer’s perception about climate change, management practice and their on-farm adoption strategies at the rice fields of Sapu and Kuntaur study location. The selected villages were the main rice production area, where rice is a monoculture crop. Focus group discussion was held with twenty rice growing farmers at Sapuand Kuntaur, and these were divided into five groups. Personal interview and key informant involves the two village head, two youth development chairpersons (VDC) and the extension worker overseeing both villages. This was done to gain in-depth knowledge on the subject matter. The analysis results indicated that more than 50% of the rice growing farmers were female and do not undergo formal education. More than 70% of them having perceived knowledge on the causes of climate change, inorganic fertilizer use, transplanting of rice seedlings, use of improved rice varieties, and on-farm coping strategies such as changing of cropping calendar and the use of pesticides to cope with current and future climate situation.
