Search results for "Rhamphicarpa fistulosa"
showing 3 items of 3 documents
Etude de l’infection la plante parasite Rhamphicarpa fistulosa en riziculture au Togo
2013
Rhamphicarpa fistulosa (Hochst.) Benth. is an annual facultative root-parasitic weed found in lowlands and floodplains in tropical Africa. It has been reported as the major constraint to rice cultivation in the savannah region of Togo. A survey was conducted in 2012 to access its distribution and to collect information on farmers' knowledge of its control. Rhamphicarpa fistulosa was found in 80% of the 33 visited lowlands. The period of abundance is in August-September when the highest infection (90%) was found on sandy and clay soils. When the parasite was present, 94 other weeds belonging to 24 botanical families were recorded. As management method, farmers use weeding and chemical fertil…
Infestation de Rhamphicarpa fistulosa (Hoschst.) Benth. en riziculture de bas-fonds au nord du Togo
2016
International audience; Le riz constitue de nos jours la base alimentaire de plus de 2,5 milliards de personnes en Afrique subsaharienne où sa demande ne cesse de croître. Pour faire face à cette demande qui dépasse souvent doublement les productions nationales, et pour diminuer ses importations sans cesse croissantes, le Togo à l’instar des pays ouest-Africains a élaboré un document stratégique qui mise sur l’extension et la productivité des rizières de bas-fond. Malheureusement, les bas-fonds rizicoles en Afrique tropicale sont souvent confrontés à la pression des adventices et plus particulièrement des adventices parasites de la famille des Orobanchaceae. Rhamphicarpa fistulosa, plante h…
Étude de l'infection de la plante parasite Rhamphicarpa fistulosa en riziculture au Togo
2013
Rhamphicarpa fistulosa (Hochst.) Benth. is an annual facultative root-parasitic weed found in lowlands and floodplains in tropical Africa. It has been reported as the major constraint to rice cultivation in the savannah region of Togo. A survey was conducted in 2012 to access its distribution and to collect information on farmers’ knowledge of its control. Rhamphicarpa fistulosa was found in 80% of the 33 visited lowlands. The period of abundance is in August-September when the highest infection (90%) was found on sandy and clay soils. When the parasite was present, 94 other weeds belonging to 24 botanical families were recorded. As management method, farmers use weeding and chemical fertil…