Search claims · PlantClaims

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.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Relative density and basal area indices of Leguminosae decrease with altitude.

Taxon: LeguminosaeFabaceaee1
Treatment: altitudee1
Outcome: relative density and basal area indicese1
Direction: decreasee1

Verbatim

e1
“The hydromegathermal families such as Leguminosae present relative density and basal area indices that decrease with altitude”
✓ located verbatim in the source · abstract, characters 1740–1865

Title

Floristic Structure and Diversity of a Tropical Sub-Montane Evergreen Forest, In the Mbam Minkom Massif (Western Yaoundé)

Emmanuel NOUMI Journal of Biology and Life Science 2015. doi:10.5296/jbls.v6i1.7028

Other claims from this paper (19)

Observation The inventory recorded 324 vascular species.
Observation The inventory recorded 150 herbaceous species.
Observation The inventory recorded 122 shrubs with 1 to under 10 cm dbh.
Observation The inventory recorded 146 ligneous species with dbh of 10 cm or more.
Observation Species-accumulation curves showed higher diversity in the 10 cm or more dbh category than in shrubs.
Observation The minimal area for the inventory was reached at 5.5 ha.
Observation Stem density for the 10 cm or more dbh category was 544 stems per ha.
Observation Basal area for the 10 cm or more dbh category was 52.72 m2 per ha.
Observation Shannon diversity index of the forest was 4.95.
Observation Most species (67, at least 77%) were common.
Observation Thirty-six species (at least 41%) were widely distributed among hill forests.
Observation Gacinia lucida had the highest IVI value (58.52).
Observation Clusiaceae had the highest FIV value (60.01).
Observation Megathermal families are abundant in the forest and reach their maximum occurrence at basal and average altitudes.
Association Relative density and basal area indices of Clusiaceae increase up to 1295 m.
Association Relative density and basal area indices of Rubiaceae increase with altitude; this increase goes along with increasing cold weather.
Observation Orchidaceae had 20 herbaceous species, more than the family with 15 species.
Observation The Mbam minkom submontane forest presents the features of an ecotone.
Recommendation The forest massif is not yet endangered and should be conserved as a priority.

Associationobservedoriginal resultmeasured

Claim · model-written summary

At bud stage, cotton Pn tended to decrease as planting density increased.

Taxon: cottonGossypium hirsutumt0
Organ / stage: bud stagee6
Treatment: planting densitye6
Outcome: Pne6
Direction: decreasee6

Verbatim

t0
“cotton”
✓ located verbatim in the source · title, characters 99–105

e6
“During bud stage, the Pn was relatively high under low density with even row space, and it tended to decrease with the increase of planting density”
✓ located verbatim in the source · abstract, characters 630–777

Title

Influence of allocation models on characteristics of photosynthesis and dry matter accumulation in cotton intercropped with jujube

Guo Ren-son Ganhan diqu nongye yanjiu 2013

Other claims from this paper (14)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Community density showed an increase, decrease and increase trend as the grazing gradient increased.

Taxon: Hulunber Meadow Steppet0
Treatment: grazing gradiente2
Outcome: community densitye2
Direction: increase-decrease-again increase trende2

Verbatim

t0
“Hulunber Meadow Steppe”
✓ located verbatim in the source · title, characters 75–97

e2
“community density showed an increase-decrease-again increase trend with increasing of the grazing gradient”
✓ located verbatim in the source · abstract, characters 340–446

Title

Influence of Cattle Grazing Gradient on Plant Community Characteristics in Hulunber Meadow Steppe

Guixia Yang Zhongguo caodi xuebao 2010

Other claims from this paper (9)

Associationobservedoriginal resultbasis n/a

Claim · model-written summary

Increasing moisture decreases density and bulk density in milled rice.

Taxon: riceOryza sativae0
Organ / stage: milled ricee0
Outcome: density and bulk densitye0
Direction: decreasee0
Qualifier: increasing moisturee0

Verbatim

e0
“With increasing moisture, density and bulk density decrease in milled rice”
✓ located verbatim in the source · abstract, characters 664–738

Title

Physical properties of rice.

K. R. Bhattacharya 2011

Other claims from this paper (8)

Observation Rice physical properties differ with variety, moisture content and degree of milling.
Recommendation Surface area per unit weight or normalised grain weight best classify rice grain dimensions.
Observation Density of milled rice varieties is about 1.45 g/ml.
Observation Density of paddy varies from 1.16 to 1.24 g/ml.
Association More slender rice grain has more porosity and less bulk density.
Association Increasing moisture increases density and bulk density in paddy.
Association Rice grain coefficient of friction increases with moisture.
Mechanism Excessive grain width above 2.35 mm causes rice white belly.

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Increasing salinity did not decrease stomatal density.

Taxon: Rhizophora mangleRhizophora manglet0
Outcome: stomatal densitye0
Direction: did not decreasee0
Setting: intermediate salinity sitee0

Verbatim

e0
“increasing salinities did not decrease stomatal density (intermediate salinity site: 73.4 stomata.mm2 SD= 13.5; high salinity site: 74.8 stomata.mm2 SD= 17.3)”
✓ located verbatim in the source · abstract, characters 2232–2390

t0
“Rhizophora mangle”
✓ located verbatim in the source · title, characters 56–73

Title

Stomatal density, leaf area and plant size variation of Rhizophora mangle (Malpighiales: Rhizophoraceae) along a salinity gradient in the Mexican Caribbean

Joanne R. Peel; Maria C. Mandujano Sanchez; Jorge Lopez Portillo; et al. Revista de Biología Tropical 2017. doi:10.15517/rbt.v65i2.24372

Other claims from this paper (7)

Association Plants were smaller at the higher salinity site.
Observation Largest leaves occurred at the low salinity site, measuring 51.2 ± 24.99 cm2.
Association Leaf length was not correlated with tree height.
Association Leaf length was not correlated with trunk diameter.
Association Larger leaves at low salinity had lower stomatal density of 65.0 stomata.mm2.
Association Stomatal density was inversely related to leaf area (r= -0.29, P < 0.001).
Association Stomatal density was inversely related to leaf width (r= -0.31, P < 0.001).

Associationobservedoriginal resultmeasured

Claim · model-written summary

Seed bank density tended to decrease in high-light environments.

Taxon: forest seed banke0
Treatment: high-light environmentse3
Outcome: seed bank densitye3
Direction: decreasee3

Verbatim

e0
“assess the degree of variation in forest seed bank characteristics”
✓ located verbatim in the source · abstract, characters 167–233

e3
“The seed bank density tended to decrease in high-light environments”
✓ located verbatim in the source · abstract, characters 990–1057

Title

Seed bank heterogeneity and its association with vegetation and micro-environmental variables in a secondary forest in Kyoto city, Japan

Koji KAWAMURA; Keita NAKAHIRA; Hideo UEDA Journal of the Japanese Society of Revegetation Technology 2018. doi:10.7211/jjsrt.44.340

Other claims from this paper (8)

Associationobservedoriginal resultmeasured

Claim · model-written summary

The Gini coefficient of plant size inequality tended to decrease with increasing population density in beet monocultures.

Taxon: Beta vulgarisBeta vulgarist0
Treatment: increasing population densitye0
Outcome: Plant size inequalitiese0
Direction: decreasee0
Qualifier: tended toe0

Verbatim

t0
“Beans (Phaseolus vulgaris L.) and Beets (Beta vulgaris L.)”
✓ located verbatim in the source · title, characters 56–114

e0
“Plant size inequalities, as determined by the Gini coefficient tended to decrease in beet monocultures with increasing population density”
✓ located verbatim in the source · abstract, characters 1534–1671

Title

Yield-density responses in monocultures and mixtures of Beans (Phaseolus vulgaris L.) and Beets (Beta vulgaris L.)

Mchaina, Grace Masala cIRcle (University of British Columbia) 2011. doi:10.14288/1.0100349

Other claims from this paper (17)

Associationobservedoriginal resultsimulated

Claim · model-written summary

Population growth of the two herbaceous species may decrease slightly as local available seed density increases, according to the models.

Taxon: two herbaceous speciese2
Treatment: local available seed densitye4
Outcome: population growthe4
Direction: decreasee4
Qualifier: may decrease slightlye4

Verbatim

e2
“We evaluated the eff ect of seed density on the seed dynamics of two herbaceous species”
✓ located verbatim in the source · abstract, characters 335–422

e4
“Models with dynamics changing with time-since-disturbance for both species predicted that population growth may decrease slightly if local available seed density increases”
✓ located verbatim in the source · abstract, characters 1256–1427

Title

Eff ects of habitat degradation, microsite, and seed density on the persistence of two native herbs in a

Elizabeth L. Stephens; Pedro F. Quintana‐Ascencio 2015

Other claims from this paper (5)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Soil seed-bank density and Shannon-Wiener diversity tended to decrease with greater fertilization.

Treatment: fertilizatione0
Outcome: density and Shannon-Wiener diversity indexe0
Direction: decreasee0

Not reportedTaxon

Verbatim

e0
“for soil seed bank,density and Shannon-Wiener diversity index tended to decrease,and Simpson dominance index tended to increase with the enhancement of fertilization”
✓ located verbatim in the source · abstract, characters 1278–1443

Title

Effects of long-term different fertilization on weeds seed bank and community in paddy fields in winter fallow season

Wang Fei Soil and Environmental Sciences 2013

Other claims from this paper (11)

Observation The soil seed bank contained 16 weed species.
Observation Field communities contained 10 weed species.
Association Seed-bank and field-weed community similarity indexes exceeded 0.6 and tended to decline with greater fertilization.
Association Soil seed-bank Simpson dominance tended to increase with greater fertilization.
Association Field-weed Simpson dominance significantly increased with greater fertilization.
Association Field-weed Shannon-Wiener diversity significantly decreased with greater fertilization.
Association Field-weed species richness and evenness tended to decline with greater fertilization.
Association Field-weed density tended to rise with greater fertilization.
Intervention effect Balanced NPK fertilization suppressed weeds.
Intervention effect Organic material application suppressed weeds.
Intervention effect Combined NPK and OM gave better weed suppression and harvest.

“decrease in density”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics