Abundance of Rhamphicarpa fistulosa in rainfed lowland rice fields in the Savannah region of Togo: Moderate influence of physico‐chemical characteristics of soils
| Autor: | Tossimidé Houngbedji, Rémi Perronne, Bernard Nicolardot, Stéphanie Gibot-Leclerc, Fabrice Dessaint |
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| Přispěvatelé: | Agroécologie [Dijon], Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut Togolais de Recherche Agronomique (ITRA), Institut de Génétique, Environnement et Protection des Plantes (IGEPP), Université de Rennes (UR)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Islamic Development Bank, Institut Togolais de Recherche Agronomique, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Rainfed rice Soil texture Infestation Lowland rice [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy Plant Science Biology medicine.disease_cause 01 natural sciences Abundance (ecology) parasitic diseases medicine Ecology Evolution Behavior and Systematics 2. Zero hunger rice vampire weed food and beverages hemiparasitic weed soil texture 04 agricultural and veterinary sciences 15. Life on land biology.organism_classification Rhamphicarpa fistulosa Agronomy Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Agronomy and Crop Science sub‐Saharan Africa 010606 plant biology & botany |
| Zdroj: | Weed Research Weed Research, 2020, 60 (6), pp.385-391. ⟨10.1111/wre.12446⟩ Weed Research, Wiley, 2020, 60 (6), pp.385-391. ⟨10.1111/wre.12446⟩ |
| ISSN: | 0043-1737 1365-3180 |
| Popis: | International audience; Rainfed lowland rice fields in northern Togo are increasingly infested by the facultative hemiparasitic weed Rhamphicarpa fistulosa that is widely reported throughout sub‐Saharan Africa to be one of the most damaging weeds in rice fields. In this geographical area, some studies have shown that soil characteristics may influence the presence and/or the level of infestation of some parasitic weeds, but none have been conducted on R. fistulosa. Based on surveys conducted in northern Togo over two years in 66 lowland rice fields, we characterised the level of infestation of R. fistulosa as well as physico‐chemical characteristics of soils. We highlighted that fields with medium‐to‐high levels of infestation of R. fistulosa (more than 5 plants per m2) were mainly characterised by a coarser soil texture, a higher potassium content and a higher pH, while fields without R. fistulosa were characterised by a lower proportion of silt content. In contrast, the level of infestation of R. fistulosa appeared only marginally influenced by soil organic carbon and nitrogen in our study. Considering these results, options to modify the main physico‐chemical characteristics of soils that influence the level of infestation of R. fistulosa are likely difficult to implement. In order to continue rice production in these lowland fields, we suggest several measures to better manage R. fistulosa seedbank and development. |
| Databáze: | OpenAIRE |
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