Poa pratensis 5,704 claims

species · family Poaceae · green plant · NCBI Taxonomy ↗

Common name: Kentucky bluegrass — Also written in claims: Kentucky bluegrass · P.pratensis · Kentucky bluegrasses · Kentucky bluegrass‐red fescue turf · hybrid Kentucky bluegrass · Kentucky bluegrass‐white clover

Listed here with its subspecies, varieties and cultivar groups: Poa pratensis subsp. angustifolia (29 claims), Poa pratensis subsp. irrigata (16 claims), Poa pratensis subsp. alpigena (12 claims)

187 spellings

Questions studied on this organism147 questions6 with results that differ274 papers

Poa pratensisRasbak 08:35, 1 May 2007 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

5,704 claims

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Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The D2.5 + I2 and D2 + I2 treatments enhanced P. pratensis visual quality, chlorophyll content and biomass.

Taxon: P. pratensisPoa pratensise0
Treatment: D2.5 + I2 and D2 + I2 treatmentse0
Outcome: visual quality, chlorophyll content, and biomasse0
Direction: enhancinge0

Not reportedComparator

Verbatim

e0
“the D2.5 + I2 and D2 + I2 treatments achieved 100% weed control efficiency and complete suppression of T. repens regrowth, significantly reducing its biomass while enhancing P. pratensis visual quality, chlorophyll content, and biomass”
✓ located verbatim in the source · abstract, characters 883–1118

Title

Suppression of Trifolium repens in Poa pratensis Using Sequential Application of Systemic and Contact Herbicides

Masood Ghasemi Ghehsareh; Seyedeh Maryam Mesbahi; Somayeh Esmaeili; et al. Weed Research 2026. doi:10.1111/wre.70056

Other claims from this paper (5)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Correlation and principal component analyses showed strong negative associations between the weed T. repens and P. pratensis turfgrass metrics.

Taxon: P. pratensisPoa pratensise0
Interactor: T. repensTrifolium repense0weed
Outcome: turfgrass ( P. pratensis ) metricse0
Direction: strong negative associationse0

Verbatim

e0
“strong negative associations between weed ( T. repens ) and turfgrass ( P. pratensis ) metrics”
✓ located verbatim in the source · abstract, characters 1177–1271

Title

Suppression of Trifolium repens in Poa pratensis Using Sequential Application of Systemic and Contact Herbicides

Masood Ghasemi Ghehsareh; Seyedeh Maryam Mesbahi; Somayeh Esmaeili; et al. Weed Research 2026. doi:10.1111/wre.70056

Other claims from this paper (5)

Intervention effect Sequential D2.5 + I2 and D2 + I2 herbicide treatments achieved 100% weed control efficiency against T. repens in Poa pratensis turf.
Intervention effect The D2.5 + I2 and D2 + I2 treatments completely suppressed regrowth of T. repens.
Intervention effect The D2.5 + I2 and D2 + I2 treatments significantly reduced T. repens biomass.
Intervention effect The D2.5 + I2 and D2 + I2 treatments enhanced P. pratensis visual quality, chlorophyll content and biomass.
Recommendation The authors present the sequential treatments as an effective and practical approach to T. repens management.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Treatment: Clover dominant mixtures, particularly C 75 –G 25e1
Outcome: leaf chlorophyll contente1
Direction: highere1

Not reportedComparator

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“Clover dominant mixtures, particularly C 75 –G 25 , exhibited higher leaf chlorophyll content”
✓ located verbatim in the source · abstract, characters 969–1062

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.
Intervention effect The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.
Intervention effect AMF inoculation increased shoot and root C by 7-9%.
Intervention effect AMF inoculation increased shoot and root N by 20-33%.
Intervention effect Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.
Intervention effect Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.
Association The reduction in intercellular CO2 concentration was associated with greater C and N concentration.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Treatment: Clover dominant mixtures, particularly C 75 –G 25e1
Outcome: shoot biomasse1
Direction: greateste1

Not reportedComparator

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“Clover dominant mixtures, particularly C 75 –G 25 , exhibited higher leaf chlorophyll content and produced the greatest shoot biomass”
✓ located verbatim in the source · abstract, characters 969–1102

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.
Intervention effect The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.
Intervention effect AMF inoculation increased shoot and root C by 7-9%.
Intervention effect AMF inoculation increased shoot and root N by 20-33%.
Intervention effect Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.
Intervention effect Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.
Association The reduction in intercellular CO2 concentration was associated with greater C and N concentration.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Treatment: inoculated with AMFe1
Interactor: AMFe1symbiont
Outcome: shoot C and N concentrationse1
Direction: higheste1
Comparator: without arbuscular mycorrhizal fungi (AMF) inoculatione3

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“This mixture, when inoculated with AMF, also showed the highest shoot C and N concentrations”
✓ located verbatim in the source · abstract, characters 1104–1196

e3
“with and without arbuscular mycorrhizal fungi (AMF) inoculation”
✓ located verbatim in the source · abstract, characters 896–959

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.
Intervention effect Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.
Intervention effect AMF inoculation increased shoot and root C by 7-9%.
Intervention effect AMF inoculation increased shoot and root N by 20-33%.
Intervention effect Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.
Intervention effect Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.
Association The reduction in intercellular CO2 concentration was associated with greater C and N concentration.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AMF inoculation increased shoot and root C by 7-9%.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Treatment: AMFe1
Interactor: AMFe1symbiont
Outcome: shoot and root Ce1
Direction: increasinge1
Value: 7–9%e1
Comparator: without arbuscular mycorrhizal fungi (AMF) inoculatione3

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“AMF increasing shoot and root C by 7–9%”
✓ located verbatim in the source · abstract, characters 1203–1242

e3
“with and without arbuscular mycorrhizal fungi (AMF) inoculation”
✓ located verbatim in the source · abstract, characters 896–959

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.
Intervention effect Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.
Intervention effect The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.
Intervention effect AMF inoculation increased shoot and root N by 20-33%.
Intervention effect Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.
Intervention effect Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.
Association The reduction in intercellular CO2 concentration was associated with greater C and N concentration.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AMF inoculation increased shoot and root N by 20-33%.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Treatment: AMFe1
Interactor: AMFe1symbiont
Outcome: Ne1
Direction: increasinge1
Value: 20–33%e1
Qualifier: shoot and roote1
Comparator: without arbuscular mycorrhizal fungi (AMF) inoculatione3

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“AMF increasing shoot and root C by 7–9% and N by 20–33%”
✓ located verbatim in the source · abstract, characters 1203–1258

e3
“with and without arbuscular mycorrhizal fungi (AMF) inoculation”
✓ located verbatim in the source · abstract, characters 896–959

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.
Intervention effect Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.
Intervention effect The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.
Intervention effect AMF inoculation increased shoot and root C by 7-9%.
Intervention effect Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.
Intervention effect Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.
Association The reduction in intercellular CO2 concentration was associated with greater C and N concentration.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Treatment: AMF inoculatione1
Interactor: AMFe1symbiont
Outcome: photosynthetic ratese1
Direction: increasede1
Value: 7.2%e1
Comparator: without arbuscular mycorrhizal fungi (AMF) inoculatione3

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“AMF inoculation increased photosynthetic rates by 7.2%”
✓ located verbatim in the source · abstract, characters 1294–1348

e3
“with and without arbuscular mycorrhizal fungi (AMF) inoculation”
✓ located verbatim in the source · abstract, characters 896–959

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.
Intervention effect Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.
Intervention effect The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.
Intervention effect AMF inoculation increased shoot and root C by 7-9%.
Intervention effect AMF inoculation increased shoot and root N by 20-33%.
Intervention effect Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.
Association The reduction in intercellular CO2 concentration was associated with greater C and N concentration.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Treatment: AMF inoculatione1
Interactor: AMFe1symbiont
Outcome: intercellular CO 2 concentrationse1
Direction: reducede1
Value: 4.1%e1
Comparator: without arbuscular mycorrhizal fungi (AMF) inoculatione3

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“AMF inoculation increased photosynthetic rates by 7.2% and reduced intercellular CO 2 concentrations by 4.1%”
✓ located verbatim in the source · abstract, characters 1294–1402

e3
“with and without arbuscular mycorrhizal fungi (AMF) inoculation”
✓ located verbatim in the source · abstract, characters 896–959

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.
Intervention effect Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.
Intervention effect The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.
Intervention effect AMF inoculation increased shoot and root C by 7-9%.
Intervention effect AMF inoculation increased shoot and root N by 20-33%.
Intervention effect Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.
Association The reduction in intercellular CO2 concentration was associated with greater C and N concentration.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

The reduction in intercellular CO2 concentration was associated with greater C and N concentration.

Taxon: clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )Poa pratensisTrifolium ambiguume0
Compound: intercellular CO 2 concentrationse1
Outcome: C and N concentratione1
Direction: greatere1

Verbatim

e0
“clover ( Trifolium ambiguum ) and Kentucky bluegrass ( Poa pratensis )”
✓ located verbatim in the source · abstract, characters 721–791

e1
“reduced intercellular CO 2 concentrations by 4.1%, which was associated with greater C and N concentration”
✓ located verbatim in the source · abstract, characters 1353–1459

Title

Legume–grass mixtures with arbuscular mycorrhizal fungi improve plant physiology, optimizing carbon and nitrogen dynamics and forage quality in perennial living mulches

Neda Nikpour Rashidabad; Ashley D. Keiser; Masoud Hashemi Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1853351

Other claims from this paper (12)

Intervention effect Clover-dominant mixtures, particularly C75-G25, had higher leaf chlorophyll content.
Intervention effect Clover-dominant mixtures, particularly C75-G25, produced the greatest shoot biomass.
Intervention effect The C75-G25 mixture inoculated with AMF showed the highest shoot C and N concentrations.
Intervention effect AMF inoculation increased shoot and root C by 7-9%.
Intervention effect AMF inoculation increased shoot and root N by 20-33%.
Intervention effect Across monocultures and mixtures, AMF inoculation increased photosynthetic rates by 7.2%.
Intervention effect Across monocultures and mixtures, AMF inoculation reduced intercellular CO2 concentrations by 4.1%.
Intervention effect AMF inoculation enhanced root network depth, width and surface area by 3.5-28.1% across all treatments.
Intervention effect AMF inoculation enhanced root network volume by 3.5-28.1% across all treatments.
Observation Clover provided higher protein, fat and calcium contents in forage.
Observation Grass provided greater dry matter, phosphorus and potassium in forage.
Observation Grass provided greater lignin, ADF, NDF and dNDF 48 in forage.