Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Grass competition significantly reduced mesquite dry weight.

Taxon: P. glandulosaNeltuma glandulosae0
Treatment: grown with S. scopariume0
Interactor: S. scopariumSchizachyrium scopariume0other
Outcome: P. glandulosa above-, belowground, and total dry weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“When P. glandulosa was grown with S. scoparium, there was a significant decrease in P. glandulosa above-, belowground, and total dry weight at all S. scoparium densities tested.”
✓ located verbatim in the source · abstract, characters 361–538

Title

Competition between Schizachyrium scoparium and Prosopis glandulosa

O. W. van Auken; J. K. Bush American Journal of Botany 1988. doi:10.2307/2443997

Other claims from this paper (6)

Intervention effect Mesquite did not significantly reduce grass dry weight.
Association Mesquite root-to-shoot ratio rose nearly threefold with grass density.
Association Grass root-to-shoot ratio rose nearly threefold with grass density.
Association Grass flowering stalk number and length declined with density.
Intervention effect Mesquite caused a slight nonsignificant reduction in grass flowering stalks.
Observation The authors predict low mesquite establishment in dense productive grasslands.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Waterlogging strongly reduced root dry weight in G. urbanum and less tolerant families.

Taxon: G. urbanumGeum urbanume1
Treatment: waterlogginge1
Outcome: root dry weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“a large decrease in root dry weight”
✓ located verbatim in the source · abstract, characters 1053–1088

t0
“Populations of Geum rivale L. and G. urbanum L. were collected from a range of habitats”
✓ located verbatim in the source · abstract, characters 8–95

e1
“Waterlogging of G. urbanum and less‐tolerant families”
✓ located verbatim in the source · abstract, characters 953–1006

Title

Comparative studies of plant growth and distribution in relation to waterlogging

S. WALDREN; J. R. ETHERINGTON; M. S. DAVIES New Phytologist 1988. doi:10.1111/j.1469-8137.1988.tb00223.x

Other claims from this paper (15)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Grass competition significantly reduced mesquite aboveground, belowground, and total dry weight at all tested grass densities.

Taxon: P. glandulosaNeltuma glandulosae0
Treatment: grown with S. scopariume0
Interactor: S. scopariumSchizachyrium scopariume0weed
Outcome: P. glandulosa above‐, belowground, and total dry weighte0
Direction: decreasee0
Qualifier: at all S. scoparium densities testede0

Not reportedComparator

Verbatim

e0
“When P. glandulosa was grown with S. scoparium , there was a significant decrease in P. glandulosa above‐, belowground, and total dry weight at all S. scoparium densities tested.”
✓ located verbatim in the source · abstract, characters 361–539

Title

COMPETITION BETWEEN SCHIZACHYRIUM SCOPARIUM AND PROSOPIS GLANDULOSA

O. W. Van Auken; J. K. Bush American Journal of Botany 1988. doi:10.1002/j.1537-2197.1988.tb13501.x

Other claims from this paper (6)

Intervention effect Mesquite did not significantly reduce grass dry weight.
Association Mesquite root to shoot ratio rose almost threefold from the lowest to the highest grass density.
Association Grass root to shoot ratio rose almost threefold from the lowest to the highest grass density.
Association Grass flowering stalk number and length fell as density increased.
Intervention effect Mesquite presence caused a slight, nonsignificant reduction in grass flowering stalk number and length.
Association The authors predict low establishment of mesquite and other woody legumes in high-density, productive grasslands.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Clipping removed a greater share of produced dry weight in erect than prostrate forms.

Taxon: Poa annua L.Poa annuat0
Material: erecte0
Treatment: clippinge1
Outcome: dry weight produced being removed by the cute0
Direction: greatere0
Comparator: prostrate formse0

Verbatim

e0
“a greater percentage of the dry weight produced being removed by the cut in the erect forms compared with the prostrate forms”
✓ located verbatim in the source · abstract, characters 1439–1564

t0
“Poa annua L.”
✓ located verbatim in the source · abstract, characters 86–98

e1
“Clipping appears to have two effects on the erect forms resulting in: (1) a greater percentage decrease in total dry matter production in the erect compared with the prostrate forms”
✓ located verbatim in the source · abstract, characters 1248–1429

Title

THE GENECOLOGY OF LAWN WEEDS

S. I. WARWICK; D. BRIGGS New Phytologist 1978. doi:10.1111/j.1469-8137.1978.tb01647.x

Other claims from this paper (7)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A 1.0 m water rise after a typhoon decreased N. nucifera biomass from 291 to 75 g dry weight per square metre.

Taxon: N. nuciferaNelumbo nuciferae0
Treatment: A rise of 1.0 m in the water levele0
Outcome: biomass of N. nuciferae0
Direction: decreasee0
Value: 75 g d.w. m −2e0
Comparator: maximum of 291 g d.w. m −2 in Julye0
Setting: Lake Kasumigaurat0

Verbatim

e0
“A rise of 1.0 m in the water level after a typhoon in August 1986 caused a subsequent decrease in biomass of N. nucifera from the maximum of 291 g d.w. m −2 in July to a minimum of 75 g d.w. m −2 .”
✓ located verbatim in the source · abstract, characters 135–332

t0
“Lake Kasumigaura”
✓ located verbatim in the source · title, characters 80–96

Title

Effects of water level fluctuation on the growth of Nelumbo nucifera Gaertn. in Lake Kasumigaura, Japan

Seiichi Nohara; Takayoshi Tsuchiya Ecological Research 1990. doi:10.1007/bf02346994

Other claims from this paper (10)

Observation Biomass subsequently recovered in shallower regions.
Association Underground biomass tended to increase toward the shore in October.
Observation Maximum total leaf area index was 1.3 m2 m−2 in 1986.
Observation Maximum total leaf area index was 2.8 m2 m−2 in 1987.
Observation Floating-leaf LAI did not exceed 1 m2 m−2.
Observation Floating-leaf petioles elongated at 2.6 cm per day after unrolling.
Observation Emergent-leaf petioles elongated at 3.4 cm per day after unrolling.
Intervention effect Sudden water rise drowned mature leaves.
Intervention effect Sudden water rise led to decomposition of mature leaves.
Observation Only young leaves elongated enough to reach the water surface after the rise.

“decrease in dry weight”

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