Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice
| Autor: | Souleymane Gaye, Abdala G. Diedhiou, Aboubacry Kane, Mathieu Ndigue Faye, Fatou Kine Mbaye, Ibrahima Ndoye, Koffi Djaman, Sarah Pignoly, Antony Champion, Daouda Mbodj, Laurent Laplaze, Baboucarr Manneh |
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| Přispěvatelé: | Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD), Africa Rice Center (AfricaRice), Sahel Regional, Africa Rice Center [Côte d'Ivoire] (AfricaRice), Consultative Group on International Agricultural Research [CGIAR] (CGIAR)-Consultative Group on International Agricultural Research [CGIAR] (CGIAR), Institut de recherche pour le développement [Dakar, Sénégal] (IRD Hann Maristes), Diversité, adaptation, développement des plantes (UMR DIADE), Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Agricultural Irrigation lcsh:Medicine Plant Science 01 natural sciences Soil Mycorrhizae Cultivar Bradyrhizobium Biomass lcsh:Science Soil Microbiology 2. Zero hunger Multidisciplinary Ecotype Plant Anatomy food and beverages Agriculture Plants Senegal Plant Physiology Fertilizer Research Article Irrigation Inflorescences Crops engineering.material Biology Research and Analysis Methods Crop 03 medical and health sciences Model Organisms Plant and Algal Models [SDV.SA.STA]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of agriculture [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Grasses Panicles Symbiosis Oryza sativa Bacteria Inoculation Crop yield lcsh:R fungi Organisms Fungi Biology and Life Sciences Oryza 15. Life on land Agronomy Species Interactions 030104 developmental biology Seedlings engineering lcsh:Q Rice Edible Grain 010606 plant biology & botany Crop Science Cereal Crops |
| Zdroj: | PLoS ONE PLoS ONE, Public Library of Science, 2016, 11 (12), pp.e0167014. ⟨10.1371/journal.pone.0167014⟩ PLoS ONE, 2016, 11 (12), pp.e0167014. ⟨10.1371/journal.pone.0167014⟩ PLoS ONE, Vol 11, Iss 12, p e0167014 (2016) |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0167014⟩ |
| Popis: | International audience; The overuse of agricultural chemicals such as fertilizer and pesticides aimed at increasing crop yield results in environmental damage, particularly in the Sahelian zone where soils are fragile. Crop inoculation with beneficial soil microbes appears as a good alternative for reducing agricultural chemical needs, especially for small farmers. This, however, requires selecting optimal combinations of crop varieties and beneficial microbes tested in field conditions. In this study, we investigated the response of rice plants to inoculation with arbuscular mycorrhizal fungi (AMF) and plant growth promoting bacteria (PGPB) under screenhouse and field conditions in two consecutive seasons in Senegal. Evaluation of single and mixed inoculations with AMF and PGPB was conducted on rice (Oryza sativa) variety Sahel 202, on sterile soil under screenhouse conditions. We observed that inoculated plants, especially plants treated with AMF, grew taller, matured earlier and had higher grain yield than the non-inoculated plants. Mixed inoculation trials with two AMF strains were then conducted under irrigated field conditions with four O. sativa varieties, two O. glaberrima varieties and two interspecific NERICA varieties, belonging to 3 ecotypes (upland, irrigated, and rainfed lowland). We observed that the upland varieties had the best responses to inoculation, especially with regards to grain yield, harvest index and spikelet fertility. These results show the potential of using AMF to improve rice production with less chemical fertilizers and present new opportunities for the genetic improvement in rice to transfer the ability of forming beneficial rice-microbe associations into high yielding varieties in order to increase further rice yield potentials. |
| Databáze: | OpenAIRE |
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