Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice
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 ch...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Public Library of Science
2016
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/118314 |
| _version_ | 1855531363349823488 |
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| author | Diedhiou, A.G. Mbaye, F.K. Mbodj, D. Faye, M.N. Pignoly, S. Ndoye, I. Djaman, K. Gaye, S. Kane, A. Laplaze, L. Manneh, B. Champion, A. |
| author_browse | Champion, A. Diedhiou, A.G. Djaman, K. Faye, M.N. Gaye, S. Kane, A. Laplaze, L. Manneh, B. Mbaye, F.K. Mbodj, D. Ndoye, I. Pignoly, S. |
| author_facet | Diedhiou, A.G. Mbaye, F.K. Mbodj, D. Faye, M.N. Pignoly, S. Ndoye, I. Djaman, K. Gaye, S. Kane, A. Laplaze, L. Manneh, B. Champion, A. |
| author_sort | Diedhiou, A.G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Journal Article |
| id | CGSpace118314 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Public Library of Science |
| publisherStr | Public Library of Science |
| record_format | dspace |
| spelling | CGSpace1183142025-12-08T10:11:39Z Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice Diedhiou, A.G. Mbaye, F.K. Mbodj, D. Faye, M.N. Pignoly, S. Ndoye, I. Djaman, K. Gaye, S. Kane, A. Laplaze, L. Manneh, B. Champion, A. rice agronomy seedlings fungi cereal crops panicles crops 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. 2016-12-01 2022-03-03T13:13:36Z 2022-03-03T13:13:36Z Journal Article https://hdl.handle.net/10568/118314 en Open Access Public Library of Science Diedhiou, A.G., Mbaye, F.K., Mbodj, D., Faye, M.N., Pignoly, S., Ndoye, I., Djaman, K., Gaye, S., Kane, A., Laplaze, L., Manneh, B. and Champion, A. 2016. Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice. PLOS ONE. Volume 11, Issue 12 :e0167014. |
| spellingShingle | rice agronomy seedlings fungi cereal crops panicles crops Diedhiou, A.G. Mbaye, F.K. Mbodj, D. Faye, M.N. Pignoly, S. Ndoye, I. Djaman, K. Gaye, S. Kane, A. Laplaze, L. Manneh, B. Champion, A. Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice |
| title | Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice |
| title_full | Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice |
| title_fullStr | Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice |
| title_full_unstemmed | Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice |
| title_short | Field Trials Reveal Ecotype-Specific Responses to Mycorrhizal Inoculation in Rice |
| title_sort | field trials reveal ecotype specific responses to mycorrhizal inoculation in rice |
| topic | rice agronomy seedlings fungi cereal crops panicles crops |
| url | https://hdl.handle.net/10568/118314 |
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