Search claims · PlantClaims

Mechanismauthor interpretationreview summarypositivebasis n/a

Claim · model-written summary

Reduced susceptible-plant spatial density seems to reduce disease incidence in bean varietal mixtures.

Taxon: beant0
Outcome: disease incidencee0
Qualifier: decrease in spatial density of susceptible plantse0

Verbatim

e0
“Four mechanisms seem to reduce disease incidence in var. mixtures: the decrease in spatial density of susceptible plants, the barrier provided by resistant plants, the replacement of susceptible plants with resistant components, and induced resistance.”
✓ located verbatim in the source · abstract, characters 240–492

t0
“bean var. mixtures”
✓ located verbatim in the source · abstract, characters 48–66

Title

Epidemiology in pure stands and varietal mixtures

Trutmann, P. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research) 1987

Other claims from this paper (3)

Observationobservedreview summarybasis n/a

Claim · model-written summary

A drop in photon flux density produces a lag in maize photosynthetic carbon assimilation.

Taxon: maizeZea mayse0
Treatment: decrease in PFDe0
Outcome: lag in photosynthetic carbon assimilatione0

Verbatim

e0
“The lag in photosynthetic carbon assimilation in maize that follows a decrease in PFD has been analysed”
✓ located verbatim in the source · abstract, characters 860–963

Title

Analysis of the control of photosynthesis in C4 plants by changes in light and carbon dioxide

R. C. Leegood; M. D. Adcock; H. D. Doncaster Philosophical transactions of the Royal Society of London. Series B, Biological sciences 1989. doi:10.1098/rstb.1989.0015

Other claims from this paper (3)

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Corn yield declined curvilinearly with cocklebur density in 1985, with predicted maximum loss of 27%.

Taxon: cornZea mays subsp. mayse0
Interactor: common cocklebure0weed
Outcome: corn yieldse0
Direction: decreasee0
Value: 27%e0
Qualifier: 4.7 common cocklebur plants/m of rowe0

Verbatim

e0
“Increases in common cocklebur density caused corn yields to decrease curvilinearly in 1985 with a maximum predicted yield loss of 27% occurring at a density of 4.7 common cocklebur plants/m of row.”
✓ located verbatim in the source · abstract, characters 484–681

Title

Interference of Four Annual Weeds in Corn (Zea mays)

Thomas H. Beckett; Edward W. Stoller; Loyd M. Wax Weed Science 1988. doi:10.1017/s0043174500075792

Other claims from this paper (5)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Higher planting density decreased flower production per plant in carnation.

Taxon: carnationDianthus caryophyllust0
Treatment: planting densitiese0
Outcome: production per plante0
Direction: decreasee0
Setting: vinil housese1

Not reportedComparator

Verbatim

t0
“flower production in carnation crop”
✓ located verbatim in the source · title, characters 31–66

e0
“As far as planting densities are concerned, there was an increase of total flower production per hectare and a decrease of slower production per plant”
✓ located verbatim in the source · abstract, characters 364–514

e1
“The influence of density of planting on flower production of carnation plants grown in vinil houses, was studied”
✓ located verbatim in the source · abstract, characters 0–112

Title

Effects of planting density on flower production in carnation crop

Maria Alice de Lourdes Bueno Souza; Salim Simão Anais da Escola Superior de Agricultura Luiz de Queiroz 1981. doi:10.1590/s0071-12761981000100016

Other claims from this paper (1)

Intervention effect Higher planting density increased total flower production per hectare in carnation.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Machine pulling, mowing, herbicide and herbicide on regrowth after pulling did not significantly decrease leafy spurge density one year after treatment.

Taxon: leafy spurge (Euphorbia esula L.)Euphorbia esulat0
Treatment: machine pulling, mowing, herbicide, or herbicide applied to regrowth after pullinge6
Outcome: density of leafy spurgee6
Direction: decreasede6

Not reportedComparator

Verbatim

t0
“leafy spurge (Euphorbia esula L.)”
✓ located verbatim in the source · title, characters 163–196

e6
“None of the machine pulling, mowing, herbicide, or herbicide applied to regrowth after pulling treatments significantly decreased the density of leafy spurge one year after treatment”
✓ located verbatim in the source · abstract, characters 1533–1715

Title

Changes in an infested plant community after an application of picloram, the effect of glyphosate on bud dormancy, the effect of pulling and the fuel potential of leafy spurge (Euphorbia esula L.)

Bruce D. Maxwell Montana State University ScholarWorks (Montana State University) 1984

Other claims from this paper (4)

Intervention effect Picloram application decreased species diversity in the rangeland plant community.
Intervention effect Radiolabelled glyphosate was highest in root crown buds of leafy spurge plants senescing at application.
Association Higher 14C-glyphosate concentration in senescing root crown buds may be related to the number of buds released from dormancy the following summer.
Intervention effect Hand pulling leafy spurge in the bloom stage gave the most effective long-term control.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Mulberry growth decreased as the density of Paratylenchus sp. increased.

Taxon: mulberrye1
Interactor: Paratylenchus spParatylenchuse1pest
Outcome: growthe1
Direction: decreaseinferrede1

Verbatim

e1
“The growth of mulberry was poor as the increase of density of Paratylenchus sp”
✓ located verbatim in the source · abstract, characters 816–894

Title

Survey for plant parasitic nematodes in mulberry fields

Hyeon-Jun Baek; Sangchan Han; Yeong-Taek Kim 1987

Other claims from this paper (13)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Polluted air decreased pine ring indicator product of W and MD (relative mean density).

Taxon: pine treesPinuse0
Outcome: product of W and MD (relative mean density)e0
Direction: decreasee0
Setting: polluted aire0

Verbatim

e0
“Ring characteristics of pine trees grown in polluted air showed up distinctly as a decrease in newly devised synthetic indicators such as product of W (relative ring width) and DD (relative difference between maximum and minimum density within a ring) or product of W and MD (relative mean density).”
✓ located verbatim in the source · abstract, characters 9–308

Title

Combined air pollution and pine ring structure observed xylochronologically¹

M. Yokobori; S. Ohta European Journal of Forest Pathology 1983. doi:10.1111/j.1439-0329.1983.tb01305.x

Other claims from this paper (3)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing density from 1 to 32 plants per pot decreased total biomass in both grasses.

Taxon: Bothriochloa pertusa and Dichanthium annulatumDichanthium annulatumBothriochloa pertusat0
Treatment: Increase in density from 1 to 32 plants per pote6
Outcome: total biomasse6
Direction: decreasee6
Comparator: from 1e6

Verbatim

t0
“Bothriochloa pertusa and Dichanthium annulatum”
✓ located verbatim in the source · title, characters 14–60

e6
“Increase in density from 1 to 32 plants per pot caused substantial decrease in production of tillers, leaves, aboveground herbage and total biomass of both the species”
✓ located verbatim in the source · abstract, characters 433–600

Title

The Growth of Bothriochloa pertusa and Dichanthium annulatum in Relation to Crowding and Herbage Removal

R. S. Tripathi; G. P. Gupta Oikos 1980. doi:10.2307/3544186

Other claims from this paper (13)

Intervention effect At the highest density (32 plants per pot), 9% mortality of D. annulatum was observed after 6 months growth.
Intervention effect At the highest density (32 plants per pot), 6% mortality of B. pertusa was observed after 6 months growth.
Intervention effect In D. annulatum, higher densities greatly reduced the number and length of rhizomes and the dry matter allocated to them.
Intervention effect Crowding reduced growth parameters of D. annulatum comparatively more than those of the other grass.
Intervention effect After clipping, D. annulatum suffered a greater setback in aboveground biomass production than B. pertusa.
Intervention effect Increasing density from 1 to 32 plants per pot decreased production of tillers, leaves and aboveground herbage in both grasses.
Intervention effect Increasing density delayed flowering in both grasses.
Intervention effect Increasing density greatly reduced the percentage of fertile tillers in both grasses.
Intervention effect In both grasses, maximal yield was achieved when 4 plants per pot were grown.
Intervention effect Increasing density from 1 to 4 plants gave some increase in yield in both grasses, never in proportion to plant number per unit area.
Intervention effect Any increase in density beyond 4 plants per pot decreased yield per pot in both grasses.
Observation Both grasses recovered well from a single clipping at 5 cm height.
Intervention effect Clipping appears to have minimised the effect of crowding on production of aboveground herbage.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The density of the larger size classes decreased over the decade.

Taxon: native vegetatione5
Outcome: density of the larger size classese1
Direction: decreasee1

Verbatim

e5
“the dramatic deterioration of native vegetation that has been recorded for less favoured reserves in other Australian cities”
✓ located verbatim in the source · abstract, characters 317–441

e1
“Over the decade an increased incidence and spread of fire was associated with increased quadrat species richness, increases in tree density, especially of Casuarina stricta, and a decrease in the density of the larger size classes”
✓ located verbatim in the source · abstract, characters 443–673

Title

The Viability of Bush in Cities 2 10 Years of Change in an Urban Grassy Woodland

JB Kirkpatrick Australian Journal of Botany 1986. doi:10.1071/bt9860691

Other claims from this paper (6)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Greater lower to upper root density ratio corresponded to lower dominance index.

Taxon: lowland grasslandse0
Organ / stage: roote0
Outcome: index of dominancee0
Direction: decreasee0

Verbatim

e0
“In fifteen lowland grasslands, as the quotient of root density in the lower (5-10 cm) layer of soil to that in the upper (0-5 cm) layer increases so there is a decrease in number of species per unit area and in an index of dominance”
✓ located verbatim in the source · abstract, characters 4–236

Title

Influence of Soil Heterogeneity on the Coexistence of Grassland Species

A. H. Fitter Journal of Ecology 1982. doi:10.2307/2259869

Other claims from this paper (4)

“decrease in density”

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