Soybean inoculation with Azospirillum argentinense improves nodulation, grain yield, and alleviates the incidence of Fusarium at field with drought stress

The efficacy of Azospirillum argentinense REC3, applied by seed inoculation, in enhancing soybean (Glycine max [L.] Merr.) nodulation with native rhizobia, improving grain yield, and protecting against Fusarium fungi was studied. In La Cruz, Tucumán, Argentina, 23 fungal isolates were identified as...

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Published in:Journal of crop improvement 2024-11, Vol.38 (6), p.591-617
Main Authors: Martínez, Cristina V., González, Victoria, Ploper, L. Daniel, Pedraza, Raúl O.
Format: Article
Language:English
Subjects:
Agricultural practices
Agricultural production
Azospirillum
Biotechnology
Crop resilience
Crop yield
Disease
Drought
Environmental conditions
Farm buildings
Field tests
Fungal diseases
Fungi
Fusarium
Glycine max
Inoculation
Nodulation
PGPB
phytopathogenic fungi
Plant diseases
Resilience
Rhizobia
Root rot
SDS
Soybeans
Sudden death syndrome
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container_title Journal of crop improvement
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creator Martínez, Cristina V.
González, Victoria
Ploper, L. Daniel
Pedraza, Raúl O.
description The efficacy of Azospirillum argentinense REC3, applied by seed inoculation, in enhancing soybean (Glycine max [L.] Merr.) nodulation with native rhizobia, improving grain yield, and protecting against Fusarium fungi was studied. In La Cruz, Tucumán, Argentina, 23 fungal isolates were identified as F. oxysporum (2 strains), F. solani (2), and F. tucumaniae (19). Following soil infestation, only F. tucumaniae was confirmed as a phytopathogen, with REC3 inhibiting its mycelial growth. Greenhouse trials, for a duration of 30 days, showed significant reductions in disease severity (78.2%), root rot (32.3%), and disease incidence (50.9%) in plants susceptible to sudden death syndrome (SDS) when REC3 was applied. Field experiments (2018-2019; January-April) under drought stress conditions, displayed increased nodulation (37.2%) and grain yield (2077 ± 272.8 kg ha −1 , p 
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Field experiments (2018-2019; January-April) under drought stress conditions, displayed increased nodulation (37.2%) and grain yield (2077 ± 272.8 kg ha −1 , p &lt; 0.05) in REC3-treated plants compared to controls (1516 ± 272.8 kg ha −1 , p &lt; 0.05). Additionally, a low disease incidence (0.90%) was observed only in the SDS-susceptible soybean variety without REC3 treatment. Overall, the findings showed the significant potential of REC3 inoculation as a biotechnological strategy for enhancing agricultural productivity, managing diseases, and improving crop resilience under challenging environmental conditions. 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subjects Agricultural practices
Agricultural production
Azospirillum
Biotechnology
Crop resilience
Crop yield
Disease
Drought
Environmental conditions
Farm buildings
Field tests
Fungal diseases
Fungi
Fusarium
Glycine max
Inoculation
Nodulation
PGPB
phytopathogenic fungi
Plant diseases
Resilience
Rhizobia
Root rot
SDS
Soybeans
Sudden death syndrome
title Soybean inoculation with Azospirillum argentinense improves nodulation, grain yield, and alleviates the incidence of Fusarium at field with drought stress
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