Abstract
Mesocosm based experiment was conducted to evaluate and compare the performance of selected three promising diazotrophic bacterial isolates (B1, B2, B3, identified as Brucella oryzae , Brucella ciceri and Pseudomonas nitroreducens respectively) isolated from acidic soils of Jharkhand; pH 5.5–6.3). The experiment aimed to assess their efficacy on improving plant growth and soil nutrient availability in wheat grown under contrasting soil pH conditions—acidic soil from Jharkhand (pH: 6.3) and neutral soils from New Delhi (pH: 7.8) conducted under controlled conditions at National Phytotron Facility, of Indian Agricultural Research Institute, New Delhi. Sampling done at 4 and 8 weeks after sowing revealed significant enhancement of 15–20% in N availability and organic C in soil, as well as improvement in plant biometrical and physiological attributes due to microbial inoculation. Additionally, there was a 15–30% increase in dehydrogenase activity and plant N content. Inoculation also led to a sharp increase in indole acetic acid (IAA) content in roots and leaves from plants grown in soils under both pH conditions, along with stimulation of leaf glutamine synthetase activity. Among the isolates, B1 was found to be superior in terms of plant growth enhancement and improving soil biological properties, while the combination of B1 + B2 was equally promising, as supported by PCA biplot analysis. Inoculation with these diazotrophic bacterial isolates positively influenced both soil properties and plant attributes, with more distinct effects observed under acidic soils of Jharkhand. The findings of this study provide a scientific foundation towards diazotrophic bacterial inoculation and development of region-specific growth invigorating inoculants for enhancing wheat production in acidic ecologies, with economic gains through the reduced use of N-fertilizers, and 25% N savings.
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Claims 10
Claim · model-written summary
Microbial inoculation increased soil N availability by 15–20% in the wheat experiment.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- microbial inoculatione0
- Outcome
- N availabilitye0
- Direction
- enhancemente0
- Value
- 15–20%e0
- Setting
- soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sampling done at 4 and 8 weeks after sowing revealed significant enhancement of 15–20% in N availability and organic C in soil, as well as improvement in plant biometrical and physiological attributes due to microbial inoculation.”
t0“wheat crop”
Claim · model-written summary
Microbial inoculation increased soil organic C by 15–20%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- microbial inoculatione0
- Outcome
- organic C in soile0
- Direction
- enhancemente0
- Value
- 15–20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sampling done at 4 and 8 weeks after sowing revealed significant enhancement of 15–20% in N availability and organic C in soil, as well as improvement in plant biometrical and physiological attributes due to microbial inoculation.”
t0“wheat crop”
Claim · model-written summary
Microbial inoculation improved wheat biometric and physiological attributes.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- microbial inoculatione0
- Outcome
- plant biometrical and physiological attributese0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sampling done at 4 and 8 weeks after sowing revealed significant enhancement of 15–20% in N availability and organic C in soil, as well as improvement in plant biometrical and physiological attributes due to microbial inoculation.”
t0“wheat crop”
Claim · model-written summary
Inoculation increased soil dehydrogenase activity by 15–30%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- microbial inoculatione1
- Outcome
- dehydrogenase activitye0
- Direction
- increasee0
- Value
- 15–30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally, there was a 15–30% increase in dehydrogenase activity and plant N content.”
t0“wheat crop”
e1“Sampling done at 4 and 8 weeks after sowing revealed significant enhancement of 15–20% in N availability and organic C in soil, as well as improvement in plant biometrical and physiological attributes due to microbial inoculation.”
Claim · model-written summary
Inoculation increased plant N content by 15–30%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- microbial inoculatione1
- Outcome
- plant N contente0
- Direction
- increasee0
- Value
- 15–30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally, there was a 15–30% increase in dehydrogenase activity and plant N content.”
t0“wheat crop”
e1“Sampling done at 4 and 8 weeks after sowing revealed significant enhancement of 15–20% in N availability and organic C in soil, as well as improvement in plant biometrical and physiological attributes due to microbial inoculation.”
Claim · model-written summary
Inoculation sharply increased IAA content in wheat roots and leaves under both soil pH conditions.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- roots and leavese0
- Treatment
- Inoculatione0
- Outcome
- indole acetic acid (IAA) contente0
- Direction
- increasee0
- Qualifier
- both pH conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation also led to a sharp increase in indole acetic acid (IAA) content in roots and leaves from plants grown in soils under both pH conditions, along with stimulation of leaf glutamine synthetase activity.”
t0“wheat crop”
Claim · model-written summary
Inoculation stimulated leaf glutamine synthetase activity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Inoculatione0
- Gene
- glutamine synthetasee0
- Outcome
- leaf glutamine synthetase activitye0
- Direction
- stimulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation also led to a sharp increase in indole acetic acid (IAA) content in roots and leaves from plants grown in soils under both pH conditions, along with stimulation of leaf glutamine synthetase activity.”
t0“wheat crop”
Claim · model-written summary
B1 was superior for plant growth enhancement and soil biological properties.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- B1e0
- Outcome
- plant growth enhancement and improving soil biological propertiese0
- Direction
- superiore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the isolates, B1 was found to be superior in terms of plant growth enhancement and improving soil biological properties, while the combination of B1 + B2 was equally promising, as supported by PCA biplot analysis.”
t0“wheat crop”
Claim · model-written summary
The B1 + B2 combination was equally promising.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- B1 + B2e0
- Outcome
- equally promisinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the isolates, B1 was found to be superior in terms of plant growth enhancement and improving soil biological properties, while the combination of B1 + B2 was equally promising, as supported by PCA biplot analysis.”
t0“wheat crop”
Claim · model-written summary
Inoculation effects on soil and wheat attributes were more distinct in acidic Jharkhand soils.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- soil properties and plant attributese0
- Direction
- more distincte0
- Setting
- acidic soils of Jharkhande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with these diazotrophic bacterial isolates positively influenced both soil properties and plant attributes, with more distinct effects observed under acidic soils of Jharkhand.”
t0“wheat crop”
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