Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysis

Background Rainfed agriculture plays key role in ensuring food security and maintain ecological balance. Especially in developing areas, most grain food are produced rainfed agricultural ecosystem. Therefore, the increase of crop yields in rainfed agricultural ecosystem becomes vital as well as ensu...

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Main Authors: Shanwei Wu, Zhaoyong Shi, Xianni Chen, Jiakai Gao, Xugang Wang
Format: Article
Language:English
Published: PeerJ Inc. 2022-02-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/12861.pdf
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author Shanwei Wu
Zhaoyong Shi
Xianni Chen
Jiakai Gao
Xugang Wang
author_facet Shanwei Wu
Zhaoyong Shi
Xianni Chen
Jiakai Gao
Xugang Wang
author_sort Shanwei Wu
collection DOAJ
description Background Rainfed agriculture plays key role in ensuring food security and maintain ecological balance. Especially in developing areas, most grain food are produced rainfed agricultural ecosystem. Therefore, the increase of crop yields in rainfed agricultural ecosystem becomes vital as well as ensuring global food security. Methods The potential roles of arbuscular mycorrhizal fungi (AMF) in improving crop yields under rainfed condition were explored based on 546 pairs of observations published from 1950 to 2021. Results AMF inoculation increased 23.0% crop yields based on 13 popular crops under rainfed condition. Not only was crop biomass of shoot and root increased 24.2% and 29.6% by AMF inocula, respectively but also seed number and pod/fruit number per plant were enhanced markedly. Further, the effect of AMF on crop yields depended on different crop groups. AMF improved more yield of N-fixing crops than non-N-fixing crops. The effect of AMF changed between grain and non-grain crops with the effect size of 0.216 and 0.352, respectively. AMF inoculation enhances stress resistance and photosynthesis of host crop in rainfed agriculture. Conclusion AMF increased crop yields by enhancing shoot biomass due to the improvement of plant nutrition, photosynthesis, and stress resistance in rainfed field. Our findings provide a new view for understanding the sustainable productivity in rainfed agroecosystem, which enriched the theory of AMF functional diversity. This study provided a theoretical and technical way for sustainable production under rainfed agriculture.
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spelling doaj.art-2714066f54a54c68acc07f7f088129562023-12-02T21:54:20ZengPeerJ Inc.PeerJ2167-83592022-02-0110e1286110.7717/peerj.12861Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysisShanwei Wu0Zhaoyong Shi1Xianni Chen2Jiakai Gao3Xugang Wang4College of Agriculture, Henan University of Science and Technology, Luoyang, Henan Province, ChinaCollege of Agriculture, Henan University of Science and Technology, Luoyang, Henan Province, ChinaCollege of Agriculture, Henan University of Science and Technology, Luoyang, Henan Province, ChinaCollege of Agriculture, Henan University of Science and Technology, Luoyang, Henan Province, ChinaCollege of Agriculture, Henan University of Science and Technology, Luoyang, Henan Province, ChinaBackground Rainfed agriculture plays key role in ensuring food security and maintain ecological balance. Especially in developing areas, most grain food are produced rainfed agricultural ecosystem. Therefore, the increase of crop yields in rainfed agricultural ecosystem becomes vital as well as ensuring global food security. Methods The potential roles of arbuscular mycorrhizal fungi (AMF) in improving crop yields under rainfed condition were explored based on 546 pairs of observations published from 1950 to 2021. Results AMF inoculation increased 23.0% crop yields based on 13 popular crops under rainfed condition. Not only was crop biomass of shoot and root increased 24.2% and 29.6% by AMF inocula, respectively but also seed number and pod/fruit number per plant were enhanced markedly. Further, the effect of AMF on crop yields depended on different crop groups. AMF improved more yield of N-fixing crops than non-N-fixing crops. The effect of AMF changed between grain and non-grain crops with the effect size of 0.216 and 0.352, respectively. AMF inoculation enhances stress resistance and photosynthesis of host crop in rainfed agriculture. Conclusion AMF increased crop yields by enhancing shoot biomass due to the improvement of plant nutrition, photosynthesis, and stress resistance in rainfed field. Our findings provide a new view for understanding the sustainable productivity in rainfed agroecosystem, which enriched the theory of AMF functional diversity. This study provided a theoretical and technical way for sustainable production under rainfed agriculture.https://peerj.com/articles/12861.pdfArbuscular mycorrhizal fungiRainfed agricultureCrop yieldsFunctional groupsMeta-analysis
spellingShingle Shanwei Wu
Zhaoyong Shi
Xianni Chen
Jiakai Gao
Xugang Wang
Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysis
PeerJ
Arbuscular mycorrhizal fungi
Rainfed agriculture
Crop yields
Functional groups
Meta-analysis
title Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysis
title_full Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysis
title_fullStr Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysis
title_full_unstemmed Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysis
title_short Arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition: a meta-analysis
title_sort arbuscular mycorrhizal fungi increase crop yields by improving biomass under rainfed condition a meta analysis
topic Arbuscular mycorrhizal fungi
Rainfed agriculture
Crop yields
Functional groups
Meta-analysis
url https://peerj.com/articles/12861.pdf
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