Abstract
In this study we aimed to investigate the effects of plant-growth-promoting rhizobacteria (PGPR) on seed incubation of spring wheat and barley. Three bacterial strains were applied singly and in combinations. Seed inoculation with strains significantly affected grain yield (GY), straw (SWY), total yield (TY), and plant nutrient element (PNE) content. In field trials, compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively, but mixtures of strains gave increases in GY, SWY, and TY by 54.7%, 2.1%, and 6.7% in wheat and 57.8%, 14.6%, and 17.5% in barley, respectively. According to the results, it was concluded that seed inoculations with PGPR and mixture inoculation might satisfy nitrogen requirements, but Bacillus megaterium M3 and MIX (Bacillus subtilis OSU142, B. megaterium M3, Azospirillum brasilense Sp245) inoculation provided greater PNE concentrations than mineral fertilizer application for wheat and barley under field conditions.
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Claims 16
Claim · model-written summary
Seed inoculation with strains significantly affected grain yield, straw yield and total yield.
- Taxon
- Wheat and Barley
Hordeum vulgare
Triticum aestivumt1 - Treatment
- Seed inoculation with strainse0
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- grain yield (GY), straw (SWY), total yield (TY)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“Seed inoculation with strains significantly affected grain yield (GY), straw (SWY), total yield (TY), and plant nutrient element (PNE) content”
Claim · model-written summary
Seed inoculation with strains significantly affected plant nutrient element content.
- Taxon
- Wheat and Barley
Hordeum vulgare
Triticum aestivumt1 - Treatment
- Seed inoculation with strainse0
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- plant nutrient element (PNE) contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“Seed inoculation with strains significantly affected grain yield (GY), straw (SWY), total yield (TY), and plant nutrient element (PNE) content”
Claim · model-written summary
Single inoculations increased wheat grain yield by 27.5–31.9% compared with the control in field trials.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- single inoculationse1
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- GYe1
- Direction
- increasese1
- Value
- 27.5–31.9%e1
- Comparator
- controle1
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e1“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively”
Claim · model-written summary
Single inoculations increased wheat straw yield by 1.1–5.3% compared with the control in field trials.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- single inoculationse1
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- SWYe1
- Direction
- increasese1
- Value
- 1.1–5.3%e1
- Comparator
- controle1
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e1“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively”
Claim · model-written summary
Single inoculations increased wheat total yield by 1.3–11.3% compared with the control in field trials.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- single inoculationse1
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- TYe1
- Direction
- increasese1
- Value
- 1.3–11.3%e1
- Comparator
- controle1
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e1“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively”
Claim · model-written summary
Single inoculations increased barley grain yield by 15.1–27.8% compared with the control in field trials.
- Taxon
- barley
Hordeum vulgaree1 - Treatment
- single inoculationse1
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- GYe1
- Direction
- increasese1
- Value
- 15.1–27.8%e1
- Comparator
- controle1
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e1“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively”
Claim · model-written summary
Single inoculations increased barley straw yield by 10.8–15.5% compared with the control in field trials.
- Taxon
- barley
Hordeum vulgaree1 - Treatment
- single inoculationse1
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- SWYe1
- Direction
- increasese1
- Value
- 10.8–15.5%e1
- Comparator
- controle1
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e1“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively”
Claim · model-written summary
Single inoculations increased barley total yield by 14.5–18.5% compared with the control in field trials.
- Taxon
- barley
Hordeum vulgaree1 - Treatment
- single inoculationse1
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- TYe1
- Direction
- increasese1
- Value
- 14.5–18.5%e1
- Comparator
- controle1
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e1“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively”
Claim · model-written summary
Strain mixtures increased wheat grain yield by 54.7% compared with the control in field trials.
- Taxon
- wheat
Triticum aestivume2 - Treatment
- mixtures of strainse2
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- GYe2
- Direction
- increasese2
- Value
- 54.7%e2
- Comparator
- controle2
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e2“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively, but mixtures of strains gave increases in GY, SWY, and TY by 54.7%, 2.1%, and 6.7% in wheat and 57.8%, 14.6%, and 17.5% in barley, respectively”
Claim · model-written summary
Strain mixtures increased wheat straw yield by 2.1% compared with the control in field trials.
- Taxon
- wheat
Triticum aestivume2 - Treatment
- mixtures of strainse2
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- SWYe2
- Direction
- increasese2
- Value
- 2.1%e2
- Comparator
- controle2
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e2“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively, but mixtures of strains gave increases in GY, SWY, and TY by 54.7%, 2.1%, and 6.7% in wheat and 57.8%, 14.6%, and 17.5% in barley, respectively”
Claim · model-written summary
Strain mixtures increased wheat total yield by 6.7% compared with the control in field trials.
- Taxon
- wheat
Triticum aestivume2 - Treatment
- mixtures of strainse2
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- TYe2
- Direction
- increasese2
- Value
- 6.7%e2
- Comparator
- controle2
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e2“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively, but mixtures of strains gave increases in GY, SWY, and TY by 54.7%, 2.1%, and 6.7% in wheat and 57.8%, 14.6%, and 17.5% in barley, respectively”
Claim · model-written summary
Strain mixtures increased barley grain yield by 57.8% compared with the control in field trials.
- Taxon
- barley
Hordeum vulgaree2 - Treatment
- mixtures of strainse2
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- GYe2
- Direction
- increasese2
- Value
- 57.8%e2
- Comparator
- controle2
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e2“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively, but mixtures of strains gave increases in GY, SWY, and TY by 54.7%, 2.1%, and 6.7% in wheat and 57.8%, 14.6%, and 17.5% in barley, respectively”
Claim · model-written summary
Strain mixtures increased barley straw yield by 14.6% compared with the control in field trials.
- Taxon
- barley
Hordeum vulgaree2 - Treatment
- mixtures of strainse2
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- SWYe2
- Direction
- increasese2
- Value
- 14.6%e2
- Comparator
- controle2
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e2“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively, but mixtures of strains gave increases in GY, SWY, and TY by 54.7%, 2.1%, and 6.7% in wheat and 57.8%, 14.6%, and 17.5% in barley, respectively”
Claim · model-written summary
Strain mixtures increased barley total yield by 17.5% compared with the control in field trials.
- Taxon
- barley
Hordeum vulgaree2 - Treatment
- mixtures of strainse2
- Interactor
- Plant-Growth-Promoting Rhizobacteria (PGPR)t0symbiont
- Outcome
- TYe2
- Direction
- increasese2
- Value
- 17.5%e2
- Comparator
- controle2
- Setting
- In field trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“In field trials”
e2“compared to the control, single inoculations gave GY, SWY, and TY increases by 27.5–31.9%, 1.1–5.3%, and 1.3–11.3% in wheat and 15.1–27.8%, 10.8–15.5%, and 14.5–18.5% in barley, respectively, but mixtures of strains gave increases in GY, SWY, and TY by 54.7%, 2.1%, and 6.7% in wheat and 57.8%, 14.6%, and 17.5% in barley, respectively”
Claim · model-written summary
Bacillus megaterium M3 and the mixed inoculant gave greater plant nutrient element concentrations than mineral fertilizer under field conditions.
- Taxon
- wheat and barley
Hordeum vulgare
Triticum aestivume0 - Treatment
- Bacillus megaterium M3 and MIXe0
- Interactor
- Bacillus megaterium M3
Priestia megateriume0symbiont - Second interactor
- Azospirillum brasilense Sp245
Azospirillum brasilensee0symbiont - Outcome
- PNE concentrationse0
- Direction
- greatere0
- Comparator
- mineral fertilizer applicatione0
- Setting
- field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)



Verbatim
t0“Plant-Growth-Promoting Rhizobacteria (PGPR)”
t1“Wheat and Barley Production”
e0“Bacillus megaterium M3 and MIX (Bacillus subtilis OSU142, B. megaterium M3, Azospirillum brasilense Sp245) inoculation provided greater PNE concentrations than mineral fertilizer application for wheat and barley under field conditions”
Claim · model-written summary
Seed inoculations with PGPR and mixture inoculation might satisfy nitrogen requirements of wheat and barley.
- Taxon
- Wheat and Barley
Hordeum vulgare
Triticum aestivumt1 - Outcome
- nitrogen requirementse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)

Verbatim
t1“Wheat and Barley Production”
e0“seed inoculations with PGPR and mixture inoculation might satisfy nitrogen requirements”
The same questions in other papers
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See all 614 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.