Paper · 2014 · Communications in Soil Science and Plant Analysis

Use of Plant-Growth-Promoting Rhizobacteria (PGPR) Seed Inoculation as Alternative Fertilizer Inputs in Wheat and Barley Production

Ozlem Baris; Fikrettin Sahin; Metin Turan; et al.

16
claims
59
verbatim quotes
43
citations
3
research areas
—
Not open access

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.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 16

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Seed inoculation with strains significantly affected grain yield, straw yield and total yield.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“Seed inoculation with strains significantly affected grain yield (GY), straw (SWY), total yield (TY), and plant nutrient element (PNE) content”

✓ located verbatim in the source · abstract, characters 209–351 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Seed inoculation with strains significantly affected plant nutrient element content.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“Seed inoculation with strains significantly affected grain yield (GY), straw (SWY), total yield (TY), and plant nutrient element (PNE) content”

✓ located verbatim in the source · abstract, characters 209–351 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single inoculations increased wheat grain yield by 27.5–31.9% compared with the control in field trials.

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.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–560 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single inoculations increased wheat straw yield by 1.1–5.3% compared with the control in field trials.

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.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–560 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single inoculations increased wheat total yield by 1.3–11.3% compared with the control in field trials.

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.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–560 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single inoculations increased barley grain yield by 15.1–27.8% compared with the control in field trials.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–560 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single inoculations increased barley straw yield by 10.8–15.5% compared with the control in field trials.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–560 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single inoculations increased barley total yield by 14.5–18.5% compared with the control in field trials.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–560 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Strain mixtures increased wheat grain yield by 54.7% compared with the control in field trials.

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.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–705 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Strain mixtures increased wheat straw yield by 2.1% compared with the control in field trials.

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.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–705 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Strain mixtures increased wheat total yield by 6.7% compared with the control in field trials.

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.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–705 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Strain mixtures increased barley grain yield by 57.8% compared with the control in field trials.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–705 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Strain mixtures increased barley straw yield by 14.6% compared with the control in field trials.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–705 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Strain mixtures increased barley total yield by 17.5% compared with the control in field trials.

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“In field trials”

✓ located verbatim in the source · abstract, characters 353–368 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 370–705 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacillus megaterium M3 and the mixed inoculant gave greater plant nutrient element concentrations than mineral fertilizer under field conditions.

Treatment
Bacillus megaterium M3 and MIXe0
Interactor
Bacillus megaterium M3Priestia megateriume0symbiont
Second interactor
Azospirillum brasilense Sp245Azospirillum 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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Priestia megaterium
Priestia megaterium · InteractorOsmoregulator / Osmoregulator at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Azospirillum brasilense
Azospirillum brasilense · Second interactorCristiane Colodel · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Plant-Growth-Promoting Rhizobacteria (PGPR)”

✓ located verbatim in the source · title, characters 7–50 · show in text ↑
t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 848–1082 · show in text ↑
Recommendationhypothesisoriginal resultpositivebasis n/a

Claim · model-written summary

Seed inoculations with PGPR and mixture inoculation might satisfy nitrogen requirements of wheat and barley.

Outcome
nitrogen requirementse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Wheat and Barley Production”

✓ located verbatim in the source · title, characters 104–131 · show in text ↑
e0

“seed inoculations with PGPR and mixture inoculation might satisfy nitrogen requirements”

✓ located verbatim in the source · abstract, characters 755–842 · show in text ↑

Priestia megaterium · nutrient: content · Triticum aestivum (wheat)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

inoculation · yield · Hordeum vulgare (barley)Positive and negative results

100 papers: 83 positive, 17 negative or no effect

82 papers in the same direction as this paper · 17 in the opposite direction

  1. positive
  2. negative
  3. negative
    Inoculated barley yielded less than sprayed barley.

    Analysis of the Effects of Erysiphe graminis DC. on the Growth of Barley · 1962 · compared with barley repeatedly sprayed with lime sulphur

    Opposite direction

96 papers more in this group

See all 100 papers →

inoculation · yield · Triticum aestivum (wheat)Positive and negative results

614 papers: 549 positive, 65 negative or no effect

548 papers in the same direction as this paper · 60 in the opposite direction · 5 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

610 papers more in this group

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.