AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization

Abstract Arbuscular mycorrhizal fungi (AMF) enhance the uptake of water and nutrients by host plants. In this study, we examined the response of six rice varieties from two ecotypes (three irrigated and three rainfed upland varieties) to AMF inoculation at five fertilizer levels, under continuous fl...

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Main Authors: Daouda Mbodj, Abdala Gamby Diedhiou, Baboucarr Manneh, Cheikh Ndiaye, Laurent Laplaze, Aboubacry Kane
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-95528-3
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author Daouda Mbodj
Abdala Gamby Diedhiou
Baboucarr Manneh
Cheikh Ndiaye
Laurent Laplaze
Aboubacry Kane
author_facet Daouda Mbodj
Abdala Gamby Diedhiou
Baboucarr Manneh
Cheikh Ndiaye
Laurent Laplaze
Aboubacry Kane
author_sort Daouda Mbodj
collection DOAJ
description Abstract Arbuscular mycorrhizal fungi (AMF) enhance the uptake of water and nutrients by host plants. In this study, we examined the response of six rice varieties from two ecotypes (three irrigated and three rainfed upland varieties) to AMF inoculation at five fertilizer levels, under continuous flooding (CF) and alternate wetting and drying (AWD) irrigation over two consecutive years in field conditions. Both irrigated and upland rice varieties experienced significant yield losses with AWD irrigation and reduced NPK fertilizer levels, with irrigated rice being more severely affected. Under AWD irrigation, AMF inoculation mitigated relative yield losses, especially when half of the recommended fertilizer dose was applied. In CF conditions, AMF inoculation often fully compensated for yield losses caused by reduced NPK levels. Furthermore, irrigation regime, fertilizer levels, and ecotype were significant sources of variation in the effects of AMF inoculation on several yield-related traits, such as total biomass, tiller number, panicle number, fertility, and maturity dates. Our findings suggest that AMF inoculation could be integrated with AWD irrigation and/or low NPK inputs to contribute to fertilizer and water savings in both irrigated and upland rice production systems.
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spelling doaj-art-e49b613203cf4c26b804a97f2fef1af62025-08-20T02:16:06ZengNature PortfolioScientific Reports2045-23222025-04-0115111110.1038/s41598-025-95528-3AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilizationDaouda Mbodj0Abdala Gamby Diedhiou1Baboucarr Manneh2Cheikh Ndiaye3Laurent Laplaze4Aboubacry Kane5Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD)Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD)Laboratoire Mixte International Adaptation des Plantes et Microorganismes associés aux Stress Environnementaux (LAPSE), Centre de Recherche de Bel-AirDépartement de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD)Laboratoire Mixte International Adaptation des Plantes et Microorganismes associés aux Stress Environnementaux (LAPSE), Centre de Recherche de Bel-AirDépartement de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD)Abstract Arbuscular mycorrhizal fungi (AMF) enhance the uptake of water and nutrients by host plants. In this study, we examined the response of six rice varieties from two ecotypes (three irrigated and three rainfed upland varieties) to AMF inoculation at five fertilizer levels, under continuous flooding (CF) and alternate wetting and drying (AWD) irrigation over two consecutive years in field conditions. Both irrigated and upland rice varieties experienced significant yield losses with AWD irrigation and reduced NPK fertilizer levels, with irrigated rice being more severely affected. Under AWD irrigation, AMF inoculation mitigated relative yield losses, especially when half of the recommended fertilizer dose was applied. In CF conditions, AMF inoculation often fully compensated for yield losses caused by reduced NPK levels. Furthermore, irrigation regime, fertilizer levels, and ecotype were significant sources of variation in the effects of AMF inoculation on several yield-related traits, such as total biomass, tiller number, panicle number, fertility, and maturity dates. Our findings suggest that AMF inoculation could be integrated with AWD irrigation and/or low NPK inputs to contribute to fertilizer and water savings in both irrigated and upland rice production systems.https://doi.org/10.1038/s41598-025-95528-3RiceAlternate wetting and dryingArbuscular mycorrhizal fungiInoculationFertilizers
spellingShingle Daouda Mbodj
Abdala Gamby Diedhiou
Baboucarr Manneh
Cheikh Ndiaye
Laurent Laplaze
Aboubacry Kane
AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization
Scientific Reports
Rice
Alternate wetting and drying
Arbuscular mycorrhizal fungi
Inoculation
Fertilizers
title AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization
title_full AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization
title_fullStr AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization
title_full_unstemmed AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization
title_short AMF inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization
title_sort amf inoculation reduces yield losses in rice exposed to alternate wetting and drying and low fertilization
topic Rice
Alternate wetting and drying
Arbuscular mycorrhizal fungi
Inoculation
Fertilizers
url https://doi.org/10.1038/s41598-025-95528-3
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