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

Small disturbances caused a marked decrease in species density.

Taxon: vascular plantsTracheophytae1
Treatment: Small disturbancese0
Outcome: species densitye0
Direction: decreasee0

Verbatim

e0
“Small disturbances cause a remarkable decrease in species density.”
✓ located verbatim in the source · abstract, characters 618–684

e1
“vascular plants”
✓ located verbatim in the source · abstract, characters 85–100

Title

High species richness in an Estonian wooded meadow

Kalevi Kull; Martin Zobel Journal of Vegetation Science 1991. doi:10.2307/3236182

Other claims from this paper (9)

Observation Maximum vascular plant richness reached 25 species in a 10 cm x 10 cm plot.
Observation Maximum vascular plant richness reached 42 species in a 20 cm x 20 cm plot.
Observation Maximum vascular plant richness reached 63 species in a 1 m 2 plot.
Association Species richness was highest where long-term mowing was most regular.
Association Fertilization was associated with lower species density.
Association Temporary cessation of mowing was associated with lower species density.
Observation The richest community had a leaf area index of 2.8.
Observation The richest community had above-ground dry biomass of 175 g/m 2.
Association Species number decreased as herb layer height increased.

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.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Defoliation caused a substantial decrease in wheat root density.

Taxon: wheatTriticum aestivumt0
Treatment: defoliationt0
Outcome: root densitye2
Direction: decreasee2

Not reportedComparator

Verbatim

t0
“Temporary growth cessation of wheat roots following defoliation”
✓ located verbatim in the source · title, characters 0–63

e2
“This caused a substantial decrease in root density”
✓ located verbatim in the source · abstract, characters 884–934

Title

Temporary growth cessation of wheat roots following defoliation

Eusun Han; John A. Kirkegaard; Kristian Thorup-Kristensen Plant and Soil 2024. doi:10.1007/s11104-024-06547-4

Other claims from this paper (3)

Intervention effect Root penetration of defoliated wheat paused for 269 °C days (20 days) after defoliation.
Intervention effect After the pause, wheat root penetration resumed at a rate similar to un-defoliated plants (1.8 mm °C days −1).
Intervention effect Defoliation was associated with reduced water and N uptake of wheat at maturity, especially from deeper soil layers (>2 m).

Intervention effectobservedreview summarynegativebasis n/a

Claim · model-written summary

Under low plant density the overall soybean yield may slightly decrease.

Taxon: SoybeanGlycine maxt0
Treatment: Low plant densitye3
Outcome: overall yielde3
Direction: decreasee3
Qualifier: may slightly decreasee3

Not reportedComparator

Verbatim

t0
“Soybean”
✓ located verbatim in the source · title, characters 53–60

e3
“Low plant density helps improve individual plant growth and nutrient use efficiency, although the overall yield may slightly decrease”
✓ located verbatim in the source · abstract, characters 288–421

Title

The Role of Plant Density and Nutrient Management in Soybean Yield Optimization

Jianhua Wang; Xin Lin; Xiaoying Li Legume Genomics and Genetics 2024. doi:10.5376/lgg.2024.15.0027

Other claims from this paper (6)

Intervention effect High plant density significantly increases soybean productivity by enhancing canopy light interception and dry matter accumulation.
Intervention effect High plant density may also lead to increased competition for resources in soybean.
Intervention effect Low plant density helps improve individual plant growth and nutrient use efficiency in soybean.
Intervention effect Proper nutrient supply and management strategies can enhance soybean adaptability to environmental stresses.
Intervention effect Proper nutrient supply and management strategies can increase soybean yield.
Intervention effect Proper nutrient supply and management strategies can reduce soybean input costs.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Survival, fecundity and growth of large individuals tended to decrease as density increased.

Taxon: Salvia lyrataSalvia lyratat0
Treatment: increasing densitye0
Outcome: these traitse0
Direction: decreasee0
Qualifier: large individualse0

Verbatim

e0
“In large individuals these traits tended to decrease with increasing density”
✓ located verbatim in the source · abstract, characters 543–619

t0
“Salvia Lyrata”
✓ located verbatim in the source · title, characters 22–35

Title

Density-Dependence in Salvia Lyrata: Experimental Alteration of Densities of Established Plants

Ruth G. Shaw Journal of Ecology 1987. doi:10.2307/2260313

Other claims from this paper (4)

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)

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Thirty-eight percent of the forested area had a significant decrease in tree density.

Taxon: MelaleucaMelaleucat0
Outcome: tree densitye0
Direction: decreasee0
Value: Thirty‐eight per cente0

Verbatim

e0
“Thirty‐eight per cent of the forested area suffered a significant decrease in tree density”
✓ located verbatim in the source · abstract, characters 556–646

t0
“Melaleuca forest density”
✓ located verbatim in the source · title, characters 11–35

Title

Changes in Melaleuca forest density on the Magela floodplain, Northern Territory, between 1950 and 1975

ALEXANDER R. WILLIAMS Australian Journal of Ecology 1984. doi:10.1111/j.1442-9993.1984.tb01357.x

Other claims from this paper (3)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The mitochondrial pool decrease affected low- and intermediate-density mitochondria.

Taxon: maizeZea mayse1
Treatment: glucose-starvede1
Outcome: low- and intermediate-density mitochondriae0
Direction: decreasee0
Comparator: higher-density mitochondriae0

Verbatim

e0
“this decrease affected low- and intermediate-density mitochondria, but not higher-density mitochondria”
✓ located verbatim in the source · abstract, characters 1358–1460

e1
“preparations from glucose-starved maize root tips”
✓ located verbatim in the source · abstract, characters 1131–1180

Title

Effects of Glucose Starvation on Mitochondrial Subpopulations in the Meristematic and Submeristematic Regions of Maize Root

Ivan Couée; Murielle Jan; Jean-Pierre Carde; et al. PLANT PHYSIOLOGY 1992. doi:10.1104/pp.100.4.1891

Other claims from this paper (10)

Observation Maize root-tip mitochondria were heterogeneous on Percoll density gradients.
Observation The mitochondrial ultrastructure was consistent with different maturation stages during cell development.
Observation Higher-density mitochondria had many cristae and a dense matrix.
Observation Higher-density mitochondria had classic respiratory properties but low ADP/O ratios.
Observation Lower-density mitochondria had few cristae and a clear matrix.
Observation Lower-density mitochondria respired slowly with weak respiratory control.
Intervention effect Higher-density mitochondria retained ultrastructure and most respiratory properties during glucose starvation.
Intervention effect Lower- and intermediate-density mitochondria were absent after glucose starvation.
Intervention effect Total mitochondrial protein per root tip decreased during glucose starvation.
Observation A significant functional mitochondrial pool remained in maize root tips during early glucose starvation.

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Rising acid rain concentrations or human population density are associated with a substantial decrease in plant biomass density at equilibrium.

Taxon: plantsViridiplantaet0
Treatment: rising acid rain concentrations or human population densitye2
Outcome: plant biomass density at equilibriume2
Direction: substantial decreasee2

Verbatim

t0
“affects the growth of plants”
✓ located verbatim in the source · title, characters 43–71

e2
“a substantial decrease in plant biomass density at equilibrium results from rising acid rain concentrations or human population density”
✓ located verbatim in the source · abstract, characters 1034–1169

Title

A dynamical model describing how acid rain affects the growth of plants in a habitat

Niranjan Swaroop; Ram Naresh Tripathi; Shyam Sundar DOAJ (DOAJ: Directory of Open Access Journals) 2026

Other claims from this paper (1)

Association Increasing acid rain concentration is associated with a considerable drop in plant biomass density in the model.

“decrease in density”

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