Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativesimulated

Claim · model-written summary

Projected climate change decreased simulated corn yield in the southern Great Plains.

Taxon: cornZea mays subsp. mayse0
Treatment: Projected climate changese0
Outcome: wheat and corn yieldse0
Direction: decreasee0
Setting: southern Great Plainse1

Not reportedComparator

Verbatim

e0
“Projected climate changes cause simulated wheat and corn yields to decrease in the study area”
✓ located verbatim in the source · abstract, characters 212–305

e1
“for the southern Great Plains”
✓ located verbatim in the source · abstract, characters 181–210

Title

CROP RESPONSE TO CLIMATE CHANGE IN THE SOUTHERN GREAT PLAINS: A SIMULATION STUDY

Cynthia Rosenzweig The Professional Geographer 1990. doi:10.1111/j.0033-0124.1990.00020.x

Other claims from this paper (3)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Moderate soil compaction reduced first-year seasonal yield by 12% relative to uncompacted soil.

Taxon: AlfalfaMedicago sativae0
Treatment: moderatelye0
Outcome: seasonal total yielde0
Direction: decreasee0
Value: 12 and 26%e0
Qualifier: 1st yre0
Comparator: noncompacted soile0

Verbatim

e0
“Alfalfa grown in moderately and heavily compacted soil had a 12 and 26% decrease respectively in seasonal total yield compared to the yield from plants grown in noncompacted soil the 1st yr.”
✓ located verbatim in the source · abstract, characters 1012–1202

t0
“Alfalfa Yield”
✓ located verbatim in the source · title, characters 0–13

Title

Alfalfa Yield as Affected by Harvest Traffic and Soil Compaction in a Sandy Loam Soil

E. A. Rechel; B. D. Meek; W. R. DeTar; et al. jpa 1991. doi:10.2134/jpa1991.0241

Other claims from this paper (13)

Intervention effect A single post-swathing traffic event reduced first-year yield by 20% relative to no traffic.
Intervention effect The single traffic event reduced second-year yield by 16.5%.
Intervention effect The single traffic event reduced third-year yield by 14%.
Intervention effect Single-event traffic did not significantly differ from no traffic in fourth-year yield.
Intervention effect Typical grower traffic did not differ in first-year total yield from no traffic.
Intervention effect Typical grower traffic reduced total yield by 5 to 17% in the succeeding three years.
Intervention effect Heavy soil compaction reduced first-year seasonal yield by 26% relative to uncompacted soil.
Intervention effect Third-year annual yield was the same across soil compaction degrees.
Intervention effect Traffic on extremely compacted soil caused an additional yield decrease that was not significant in the first year.
Intervention effect Traffic on extremely compacted soil reduced yield by 17.8% in 1987.
Intervention effect Traffic on extremely compacted soil reduced yield by 19.1% in 1988.
Recommendation The authors recommend tilling compacted soil before planting for optimal long-term alfalfa yield.
Recommendation The authors recommend operations that reduce traffic-exposed field area.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Heavy soil compaction reduced first-year seasonal yield by 26% relative to uncompacted soil.

Taxon: AlfalfaMedicago sativae0
Treatment: heavily compacted soile0
Outcome: seasonal total yielde0
Direction: decreasee0
Value: 26%e0
Qualifier: 1st yre0
Comparator: noncompacted soile0

Verbatim

e0
“Alfalfa grown in moderately and heavily compacted soil had a 12 and 26% decrease respectively in seasonal total yield compared to the yield from plants grown in noncompacted soil the 1st yr.”
✓ located verbatim in the source · abstract, characters 1012–1202

t0
“Alfalfa Yield”
✓ located verbatim in the source · title, characters 0–13

Title

Alfalfa Yield as Affected by Harvest Traffic and Soil Compaction in a Sandy Loam Soil

E. A. Rechel; B. D. Meek; W. R. DeTar; et al. jpa 1991. doi:10.2134/jpa1991.0241

Other claims from this paper (13)

Intervention effect A single post-swathing traffic event reduced first-year yield by 20% relative to no traffic.
Intervention effect The single traffic event reduced second-year yield by 16.5%.
Intervention effect The single traffic event reduced third-year yield by 14%.
Intervention effect Single-event traffic did not significantly differ from no traffic in fourth-year yield.
Intervention effect Typical grower traffic did not differ in first-year total yield from no traffic.
Intervention effect Typical grower traffic reduced total yield by 5 to 17% in the succeeding three years.
Intervention effect Moderate soil compaction reduced first-year seasonal yield by 12% relative to uncompacted soil.
Intervention effect Third-year annual yield was the same across soil compaction degrees.
Intervention effect Traffic on extremely compacted soil caused an additional yield decrease that was not significant in the first year.
Intervention effect Traffic on extremely compacted soil reduced yield by 17.8% in 1987.
Intervention effect Traffic on extremely compacted soil reduced yield by 19.1% in 1988.
Recommendation The authors recommend tilling compacted soil before planting for optimal long-term alfalfa yield.
Recommendation The authors recommend operations that reduce traffic-exposed field area.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen fertilization decreased the dry matter yield of Maiwa pearl millet.

Taxon: Maiwa pearl millete0
Treatment: Nitrogen fertilizatione1
Outcome: dry matter yielde1
Direction: decreasee1
Setting: semi-arid region of Nigeriae0

Not reportedComparator

Verbatim

e0
“Maiwa pearl millet (Pennisetum americanum (L.) Schum.) in the semi-arid region of Nigeria were evaluated”
✓ located verbatim in the source · abstract, characters 81–185

e1
“Nitrogen fertilization resulted in a decrease in the dry matter yield of the millet”
✓ located verbatim in the source · abstract, characters 187–270

Title

Effects of nitrogen fertilization and cutting height on forage yield and quality of Maiwa pearl miller

C. K. Oji; P. O. Ugherughe Tropical Agriculture 1992

Other claims from this paper (3)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each susceptibility increment was associated with 2.9 Mg/ha lower root yield during severe disease.

Taxon: sugarbeetBeta vulgaris subsp. vulgarist0
Interactor: CercosporaCercosporae0pathogen
Outcome: root yielde0
Direction: decreasee0
Value: 2.9 Mg/hae0
Qualifier: severe epiphytotic (1991)e0

Verbatim

t0
“sugarbeet”
✓ located verbatim in the source · title, characters 69–78

e0
“A 2.9 Mg/ha decrease in root yield associated with each increment increase in susceptibility confirmed that under a severe epiphytotic (1991) Cercospora resistance provided substantial protection.”
✓ located verbatim in the source · abstract, characters 372–568

Title

Association between resistance to Cercospora and yield in commercial sugarbeet hybrids

G. A. Smith; L. G. Campbell Plant Breeding 1996. doi:10.1111/j.1439-0523.1996.tb00866.x

Other claims from this paper (3)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Lines carrying 1BL/1RS had fewer spikes per plant.

Outcome: spike number per plante0
Direction: decreasee0

Not reportedTaxonMaterialOrgan / stageInteractorTreatmentComparatorSettingValueQualifier

Verbatim

e0
“together with a decrease in spike number per plant”
✓ located verbatim in the source · abstract, characters 433–483

Title

Bread‐making quality and yield performance of 1BL/1RS wheat isogenic lines

L. Bullrich; G. Tranquilli; L. A. Pfluger; et al. Plant Breeding 1998. doi:10.1111/j.1439-0523.1998.tb01463.x

Other claims from this paper (3)

Intervention effect The translocation lowered sodium dodecyl sulphate sedimentation volume in every background.
Observation Yield was similar between translocated and non-translocated wheat lines.
Observation Lines carrying 1BL/1RS had higher grain weight.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Both diseases were associated with a decrease in the maximum rate of grain‐weight accumulation.

Taxon: wheatTriticum aestivumt0
Interactor: Mycosphaerella graminicolaZymoseptoria triticie0pathogen
Second interactor: Puccinia reconditaPuccinia reconditae0pathogen
Outcome: maximum rate of grain‐weight accumulatione1
Direction: decreasee1

Verbatim

t0
“foliar diseases of wheat”
✓ located verbatim in the source · title, characters 10–34

e1
“Both diseases were associated with a decrease in the maximum rate of grain‐weight accumulation”
✓ located verbatim in the source · abstract, characters 567–661

e0
“The effects of Septoria leaf blotch (caused by Mycosphaerella graminicola) and leaf rust (caused by Puccinia recondita )”
✓ located verbatim in the source · abstract, characters 0–120

Title

Effect of foliar diseases of wheat on the physiological processes affecting yield under semi‐arid conditions

D. SHTIENBERG Plant Pathology 1991. doi:10.1111/j.1365-3059.1991.tb02416.x

Other claims from this paper (11)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Striga infection did not decrease host photosynthesis at 67 or 79 days.

Taxon: Sorghum bicolor (L.) MoenchSorghum bicolort0
Treatment: S. hermonthica infectione0
Interactor: S. hermonthicaStriga hermonthicae0parasite
Outcome: host photo-synthesise0
Direction: did not decreasee0
Qualifier: 67 or 79 DASe0

Not reportedComparator

Verbatim

e0
“S. hermonthica infection did not decrease host photo-synthesis, transpiration and water use efficiency 67 or 79 DAS.”
✓ located verbatim in the source · abstract, characters 368–484

t0
“Sorghum bicolor (L.) Moench host”
✓ located verbatim in the source · abstract, characters 117–149

Title

The effect ofStriga hermonthica(Del.) Benth. infection on gas-exchange characteristics and yield of a sorghum host, measured in the field in Mali

Lawrence J. Clark; Keith G. Shawe; Gŕrard Hoffmann; et al. Journal of Experimental Botany 1994. doi:10.1093/jxb/45.2.281

Other claims from this paper (4)

Intervention effect Striga infection significantly reduced sorghum grain yield at harvest.
Intervention effect Striga infection significantly reduced sorghum straw yield at harvest.
Intervention effect Striga infection did not decrease host transpiration at 67 or 79 days.
Intervention effect Striga infection did not decrease host water use efficiency at 67 or 79 days.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Oil acid and saponification values decreased with growth retardant application.

Taxon: cottonGossypium hirsutumt0
Outcome: oil acid value and saponification valuee0
Direction: decreasee0

Not reportedTreatmentComparator

Verbatim

t0
“cottonseed yield and quality”
✓ located verbatim in the source · title, characters 77–105

e0
“However, there was a decrease in oil acid value and saponification value.”
✓ located verbatim in the source · abstract, characters 877–950

Title

Effect of plant population densities and application of growth retardants on cottonseed yield and quality

Zakaria M. Sawan; Ahmad E. Basyony; Willis L. McCuistion; et al. Journal of the American Oil Chemists Society 1993. doi:10.1007/bf02545314

Other claims from this paper (19)

Intervention effect Increasing plant density reduced cottonseed yield per hectare.
Intervention effect Increasing plant density reduced seed index and protein content.
Intervention effect Increasing plant density reduced oil and protein yields per hectare.
Intervention effect Increasing plant density reduced oil refractive index, iodine value and unsaponifiable matter.
Intervention effect Increasing plant density reduced unsaturated fatty acids.
Intervention effect Increasing plant density raised oil acid and saponification values.
Intervention effect Increasing plant density raised saturated fatty acids.
Intervention effect Cycocel increased cottonseed yield and seed index.
Intervention effect Alar increased cottonseed yield and seed index.
Intervention effect Cycocel increased seed protein content and oil and protein yield.
Intervention effect Alar increased seed protein content and oil and protein yield.
Intervention effect Cycocel increased oil refractive index, iodine value and unsaponifiable matter.
Intervention effect Alar increased oil refractive index, iodine value and unsaponifiable matter.
Intervention effect Cycocel increased unsaturated fatty acids and reduced oil acid and saponification values.
Intervention effect Alar increased unsaturated fatty acids.
Association Cottonseed yield did not differ among application rates of either chemical.
Intervention effect Cycocel at 750 ppm produced the highest oil and protein yield per hectare, followed by Alar at 250 ppm.
Intervention effect Cycocel at 250 ppm gave the highest refractive index and unsaponifiable matter and the lowest acid value.
Intervention effect Alar at 250 ppm gave the highest iodine value and lowest saponification value.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Methyl bromide fumigation decreased corn grain yield under rotation in 7 of 12 observations.

Taxon: cornZea mays subsp. mayse0
Treatment: fumigatione4
Outcome: grain yielde4
Direction: decreasee4
Qualifier: under rotation in 7 of 12 observationse4

Not reportedComparator

Verbatim

e0
“The causative factors for corn ( Zea mays L.) response to methyl bromide (CH 3 Br) fumigation”
✓ located verbatim in the source · abstract, characters 9–102

e4
“fumigation resulted in a decrease in grain yield under rotation in 7 of 12 observations”
✓ located verbatim in the source · abstract, characters 1146–1233

Title

Soil Fumigation within Monoculture and Rotations: Response of Corn and Mycorrhizae

Michael D. Jawson; Alan J. Franzluebbers; Deborah K. Galusha; et al. Agronomy Journal 1993. doi:10.2134/agronj1993.00021962008500060016x

Other claims from this paper (8)

Intervention effect Methyl bromide fumigation increased corn grain yield under monoculture only once in six site years.
Intervention effect Plants in fumigated soil were P-deficient early in the growing season.
Intervention effect Fumigation did not change soil test P concentrations relative to control plots.
Intervention effect Fumigation reduced mycorrhizal infection of corn.
Intervention effect Fumigation reduced soil microbial biomass.
Association Mycorrhizal infection of corn shortly after germination appears to be important to initial corn growth in this soil.
Intervention effect Fumigating soil reduced both deleterious and beneficial microorganisms.
Association Fumigating soil revealed a considerable biological influence on corn growth and yield.

“yield decrease”

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