Search claims · PlantClaims

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Higher shrub density appeared to decrease ephemeral biomass productivity and density.

Taxon: ephemerale0
Interactor: shrube0other
Outcome: biGmass productivity and densitye0
Direction: decreasee0
Qualifier: appearse0

Verbatim

e0
“Higher shrub density associated with increased elevation appears to decrease both ephemeral biGmass productivity and density”
✓ located verbatim in the source · abstract, characters 141–265

Title

Productivity and Flowering of Winter Ephemerals in Relation to Sonoran Desert Shrubs

William L. Halvorson; Duncan T. Patten The American Midland Naturalist 1975. doi:10.2307/2424164

Other claims from this paper (5)

Association Ephemeral biomass and density varied with shrub canopy type and density.
Association Shrub canopy enhanced ephemeral growth when it was not too dense or low-hanging.
Observation Ephemerals germinated early in the cool season.
Observation Ephemerals had low tolerance to heat.
Observation Ephemerals flowered earlier than shrubs and succulents.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Seed cotton yield tended to decrease as weed density increased.

Taxon: cottonGossypium hirsutumt0
Treatment: weed densitye0
Interactor: Goosegrasst1weed
Outcome: Seed cotton yielde0
Direction: decreasee0

Verbatim

e0
“Seed cotton yield tended to decrease with the increase in weed density”
✓ located verbatim in the source · abstract, characters 379–449

t0
“cotton”
✓ located verbatim in the source · title, characters 48–54

t1
“Goosegrass”
✓ located verbatim in the source · title, characters 0–10

Title

Goosegrass (Eleusine indica) density effects on cotton (Gossypium hirsutum)

Xiao-yan MA; Han-wen WU; Wei-li JIANG; et al. Journal of Integrative Agriculture 2015. doi:10.1016/s2095-3119(15)61058-9

Other claims from this paper (10)

Intervention effect Goosegrass at 4 plants per metre of row significantly reduced cotton yield by 20 to 27%.
Intervention effect The regression model predicted a 50% cotton yield loss at 11.6–19.2 goosegrass plants per metre of row.
Intervention effect Boll production was unaffected in the early growing season.
Intervention effect At 4 plants per metre of row, boll numbers per cotton plant fell about 25% late in the growing season.
Intervention effect Cotton boll weight and seed numbers per boll were significantly reduced by 8% at 4 goosegrass plants per metre of row.
Intervention effect Cotton height, stem diameter and sympodial branch number were less affected than yield by goosegrass competition.
Intervention effect Seed index, lint percentage and lint fiber properties were unaffected by weed competition.
Association Intraspecific competition produced density-dependent goosegrass biomass per plant of 142–387 g dry weight at harvest.
Association Goosegrass biomass per square metre tended to increase quadratically with weed density.
Recommendation The authors conclude that effective goosegrass management is needed to protect cotton yield.

Associationobservedreview summarynegativebasis n/a

Claim · model-written summary

Increased weed density in new seedings of alfalfa can decrease alfalfa stand.

Taxon: alfalfaMedicago sativae0
Interactor: weede0weed
Outcome: alfalfa stande0
Direction: decreasee0

Verbatim

e0
“Increased weed density in new seedings of alfalfa can decrease alfalfa stand”
✓ located verbatim in the source · abstract, characters 152–228

Title

G95-1254 Weed Control in Alfalfa

Rob Wilson; G. A. Wicks; Alex Martin Lincoln (University of Nebraska) 1995

Other claims from this paper (4)

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing nutsedge density was associated with a significant linear decrease in seed cotton yield

Taxon: cottonGossypium hirsutumt0
Treatment: Increasing nutsedge densitye0
Interactor: nutsedgee0weed
Outcome: seed cotton yielde0
Direction: decreasee0

Verbatim

t0
“yellow nutsedge (Cyperus esculentus) density on cotton (Gossypium hirsutum)”
✓ located verbatim in the source · title, characters 29–104

e0
“Increasing nutsedge density caused a significant linear decrease in seed cotton yield”
✓ located verbatim in the source · abstract, characters 230–315

Title

Effects of soil moisture and yellow nutsedge (Cyperus esculentus) density on cotton (Gossypium hirsutum)

Jody E. Moffett; William B. McCloskey Weed Science 1998. doi:10.1017/s0043174500090470

Other claims from this paper (9)

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Leafhopper abundance did not decrease with greater trichome density.

Taxon: potatoSolanum tuberosumt0
Organ / stage: trichomee0
Interactor: leafhoppere0pest
Outcome: leafhopper abundancee0
Direction: did not decreasee0

Verbatim

e0
“leafhopper abundance did not decrease as trichome density increased”
✓ located verbatim in the source · abstract, characters 1102–1169

t0
“on potato. Natural variation in trichome density among 17 potato cultivars”
✓ located verbatim in the source · abstract, characters 677–751

Title

The costs of anti‐herbivore defense traits in agricultural crop plants: a case study involving leafhoppers and trichomes

Ian Kaplan; Galen P. Dively; Robert F. Denno Ecological Applications 2009. doi:10.1890/07-1566.1

Other claims from this paper (5)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Tree density within fields tended to decrease crop yield.

Outcome: crop yielde0
Direction: decreasee0
Setting: inside the fieldse0

Not reportedTaxon

Verbatim

e0
“tree canopy cover and tree density inside the fields tended to decrease crop yield”
✓ located verbatim in the source · abstract, characters 654–736

Title

Exploring the landscape scale influences of tree cover on crop yield in an agroforestry parkland using satellite data and spatial statistics

Martin Karlson; David Bolin; Hugues Roméo Bazié; et al. Journal of Arid Environments 2023. doi:10.1016/j.jaridenv.2023.105051

Other claims from this paper (6)

Associationhypothesisoriginal resultmeasured

Claim · model-written summary

Spotted knapweed density may not decrease significantly until the seed bank falls below a critical threshold.

Taxon: Spotted knapweede7
Outcome: densitye7
Direction: may not decrease significantlye7
Comparator: critical thresholde7

Verbatim

t0
“Spotted Knapweed”
✓ located verbatim in the source · title, characters 62–78

e7
“Spotted knapweed density may not decrease significantly until the seed bank falls below a critical threshold”
✓ located verbatim in the source · abstract, characters 1479–1587

Title

Influence of Seed Head–Attacking Biological Control Agents on Spotted Knapweed Reproductive Potential in Western Montana Over a 30-Year Period

Jim M. Story; Lincoln Smith; Janelle G. Corn; et al. Environmental Entomology 2008. doi:10.1603/0046-225x(2008)37[510:ioshbc]2.0.co;2

Other claims from this paper (11)

Associationobservedoriginal resultmeasured

Claim · model-written summary

The decrease in aggregation of damage with density was strongest for jasmonate-insensitive plants.

Taxon: plante1
Material: jasmonate-insensitivee1
Outcome: distribution of damagee1
Direction: decreasee1
Qualifier: strongeste1

Verbatim

e1
“The distribution of damage was also affected by an interaction between plant resistance and herbivore density; damage became less aggregated with density across all plant resistance treatments, but the decrease was strongest for the jasmonate-insensitive plants”
✓ located verbatim in the source · abstract, characters 1398–1659

Title

Plant resistance and predators influence the density dependence of herbivore survival and distribution of herbivory

Monica Paniagua Montoya; Alexander J. Forde; Brian Inouye; et al. Ecology and Evolution 2024. doi:10.1002/ece3.70106

Other claims from this paper (12)

Intervention effect Higher plant resistance reduced herbivore growth.
Intervention effect Predation did not change herbivore growth.
Association Herbivore growth was not density-dependent.
Association Predators influenced the density dependence of herbivore survivorship.
Association Plant resistance and predation interacted in affecting density dependence of herbivore survivorship.
Intervention effect Higher plant resistance reduced per capita plant damage.
Intervention effect Predation reduced per capita plant damage.
Intervention effect Herbivore density reduced per capita plant damage.
Intervention effect Increasing herbivore density made the within-plant distribution of damage more even.
Intervention effect Predation did not affect the within-plant distribution of damage.
Intervention effect Plant resistance did not affect the within-plant distribution of damage independently of herbivore density.
Association Damage became less aggregated with herbivore density across all plant resistance treatments.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Beetle numbers tended to decrease with increasing plant density in linseed.

Taxon: Linum usitatissimumLinum usitatissimumt0
Treatment: plant densitye1
Interactor: flea beetlesAlticinie2pest
Outcome: beetle numberse1
Direction: decreasee1

Verbatim

t0
“linseed (Linum usitatissimum L.)”
✓ located verbatim in the source · title, characters 45–77

e1
“In terms of the total catch, the tendency was for beetle numbers to decrease with increasing plant density”
✓ located verbatim in the source · abstract, characters 1083–1189

e2
“Flax flea beetles feeding on linseed plants”
✓ located verbatim in the source · abstract, characters 1191–1234

Title

The effect of different seeding densities of linseed (Linum usitatissimum L.) on flax flea beetles (Coleoptera: Chrysomelidae)

Jacek Twardowski; Michał Hurej; Radosław Ścibior; et al. Journal of Plant Protection Research 2017. doi:10.1515/jppr-2017-0022

Other claims from this paper (6)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Poplar forest canopy density was associated with decrease Anoplophora glabripennis abundance.

Taxon: PoplarPopulust0
Interactor: Anoplophora glabripennisAnoplophora glabripennise0
Outcome: quantity of Anoplophora glabripennise0
Direction: decreasee0
Setting: canopy densitye0

Not reportedInteractor role

Verbatim

e0
“The quantity of Anoplophora glabripennis decrease with the increase of coverage and canopy density,and the quantity of Anoplophora glabripennis at the edge of forest is bigger than the ones inside the forest.”
✓ located verbatim in the source · abstract, characters 268–476

t0
“Poplar Forest”
✓ located verbatim in the source · title, characters 76–89

Title

Influencing Factors of Quantity Distribution of Anoplophora glabripennis in Poplar Forest

Chunmei Zhou Journal of Inner Mongolia Forestry Science and Technology 2012

Other claims from this paper (2)

“decrease in density”

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