Search claims · PlantClaims

Intervention effectauthor interpretationoriginal resultno effectmeasured

Claim · model-written summary

Low combined pest densities did not decrease canola yield.

Taxon: Brassica napus L.Brassica napust0
Treatment: low combined densitiese0
Outcome: yielde0
Direction: do not decreasee0

Not reportedComparator

Verbatim

e0
“low combined densities do not decrease yield”
✓ located verbatim in the source · abstract, characters 1078–1122

t0
“Brassica napus L.”
✓ located verbatim in the source · title, characters 78–95

Title

Effect of Insect Herbivory on the Architecture and Seed Production of Canola, Brassica napus L.

H.A. Cárcamo Journal of Entomological Science 2012. doi:10.18474/0749-8004-47.1.44

Other claims from this paper (7)

Intervention effect Intermediate combined insect density reduced canola grain yield under severe dryness.
Intervention effect High combined insect density reduced canola grain yield under severe dryness.
Intervention effect Intermediate combined insect density reduced raceme number and pods per raceme under severe dryness.
Intervention effect High combined insect density reduced raceme number and pods per raceme under severe dryness.
Intervention effect In more humid 2002 conditions, weevil damage at 20 adults per cage was more apparent than in 2000.
Intervention effect At low or moderate densities, late-season pests did not appear to stimulate canola overcompensation.
Observation The study found no indication of competition between the two insect pests.

Observationobservedoriginal resultnegativeprojected

Claim · model-written summary

Climate change was projected to greatly decrease untreated winter oilseed rape yield in southern England.

Taxon: winter oilseed rapeBrassica napuse0
Treatment: untreatede0
Outcome: yielde0
Direction: greatly decreasee0
Setting: southern Englande1

Verbatim

e0
“greatly decrease yield of untreated winter oilseed rape”
✓ located verbatim in the source · abstract, characters 967–1022

e1
“southern England the combination”
✓ located verbatim in the source · abstract, characters 746–778

Title

North–South divide: contrasting impacts of climate change on crop yields in Scotland and England

Michael H. Butterworth; Mikhail A. Semenov; Andrew Barnes; et al. Journal of The Royal Society Interface 2009. doi:10.1098/rsif.2009.0111

Other claims from this paper (3)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Factors raising Ca concentration while lowering Mg concentration were associated with reduced yield.

Taxon: winter oilseed rapeBrassica napust0
Compound: Ca but decrease in Mge0
Outcome: yielde0
Direction: decreasee0

Verbatim

e0
“each factor leading to increase in Ca but decrease in Mg concentration resulted in yield decrease”
✓ located verbatim in the source · abstract, characters 948–1045

t0
“winter oilseed rape”
✓ located verbatim in the source · title, characters 22–41

Title

Nutritional status of winter oilseed rape in cardinal stages of growth as the yield indicator

W. Szczepaniak; W. Grzebisz; J. Potarzycki; et al. Plant Soil and Environment 2015. doi:10.17221/150/2015-pse

Other claims from this paper (3)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unprotected B. napus showed an apparent appreciable yield decrease.

Taxon: B. napusBrassica napuse0
Treatment: unprotectede1
Outcome: decreasee0
Direction: decreasee0
Comparator: protectede1

Verbatim

e0
“B. napus, however, suffered an apparent appreciable decrease”
✓ located verbatim in the source · abstract, characters 725–785

t0
“RESPONSE OF FOUR BRASSICA SEED CROP SPECIES TO ATTACK BY THE CRUCIFER FLEA BEETLE, PHYLLOTRETA CRUCIFERAE”
✓ located verbatim in the source · title, characters 0–105

e1
“Nevertheless the unprotected B. juncea treatment yielded as much as the protected; B. napus, however, suffered an apparent appreciable decrease and B. campestris a significant decrease.”
✓ located verbatim in the source · abstract, characters 642–827

Title

RESPONSE OF FOUR BRASSICA SEED CROP SPECIES TO ATTACK BY THE CRUCIFER FLEA BEETLE, PHYLLOTRETA CRUCIFERAE

L. G. PUTNAM Canadian Journal of Plant Science 1977. doi:10.4141/cjps77-143

Other claims from this paper (7)

Intervention effect Unprotected B. hirta seedlings sustained little flea beetle damage.
Intervention effect Unprotected B. hirta had seed yield as high as protected B. hirta.
Observation Unprotected B. juncea seedlings sustained severe damage.
Observation Unprotected B. napus seedlings sustained severe damage.
Observation Unprotected B. campestris seedlings sustained severe damage.
Intervention effect Unprotected B. juncea yielded as much as protected B. juncea.
Intervention effect Unprotected B. campestris had a significant yield decrease.

Intervention effectauthor interpretationoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

A reduced N rate did not significantly decrease seed yield under optimized rotation.

Taxon: oilseed rapeBrassica napust0
Treatment: reduced N ratee0
Outcome: seed yielde0
Direction: without a significant/equivalent decreasee0
Qualifier: when the rotation was optimisede0

Not reportedComparator

Verbatim

e0
“A reduced N rate increased N-use efficiency and reduced the risk of high N surpluses without a significant/equivalent decrease of the seed yield when the rotation was optimised”
✓ located verbatim in the source · abstract, characters 1581–1757

t0
“oilseed rape”
✓ located verbatim in the source · title, characters 60–72

Title

Impacts of high intensity crop rotation and N management on oilseed rape productivity in Germany

Hannes Hegewald; Barbara Koblenz; Monika Wensch-Dorendorf; et al. Crop and Pasture Science 2016. doi:10.1071/cp15214

Other claims from this paper (10)

Intervention effect Seed yield, oil yield and N-use efficiency declined with greater oilseed rape cropping intensity in 2005–2012.
Intervention effect Higher N rates increased seed and oil yields when oilseed rape followed WW-WW.
Intervention effect Oilseed rape monoculture had the lowest yield regardless of N rate.
Intervention effect At 120 kg N ha–1, seed yield was 4.61 t ha–1 after WW-WW and 4.28 t ha–1 in monoculture.
Intervention effect At 180 kg N ha–1, seed yield was 4.81 t ha–1 after WW-WW and 4.42 t ha–1 in monoculture.
Intervention effect Higher N rates generally reduced N-use efficiency.
Observation WW-WW-OSR had the highest N-efficiency at 38.4 kg kg–1.
Observation Continuous OSR at 180 kg N ha–1 had the lowest N-efficiency at 24.5 kg kg–1.
Intervention effect A reduced N rate increased N-use efficiency and reduced the risk of high N surpluses under optimized rotation.
Intervention effect A reduced N rate reduced the risk of high N surpluses under optimized rotation.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

A 1% increase in DSI was associated with a 0.49% decrease in greenhouse yield.

Taxon: canolaBrassica napus var. napuse0
Treatment: DSIe7
Outcome: yielde7
Direction: decreasee7
Value: 0.49%e7
Setting: greenhouse conditionse7

Verbatim

e0
“Clubroot, caused by Plasmodiophora brassicae, is a major disease of canola (Brassica napus)”
✓ located verbatim in the source · abstract, characters 0–91

e7
“Regression analysis indicated that under greenhouse conditions, an increment of 1% in DSI resulted in a decrease of 0.49% in yield; under field conditions, this percentage was reduced to 0.26%”
✓ located verbatim in the source · abstract, characters 1226–1418

Title

Effect of clubroot ( Plasmodiophora brassicae ) on yield of canola ( Brassica napus )

Andrea Botero-Ramírez; Sheau-Fang Hwang; Stephen E. Strelkov Canadian Journal of Plant Pathology 2021. doi:10.1080/07060661.2021.1989801

Other claims from this paper (9)

Intervention effect Clubroot incidence and disease severity index increased with inoculum concentration in both the field and greenhouse.
Observation The susceptible cultivar 45H31 had the highest levels of clubroot disease.
Observation The resistant cultivar 45H29 had the lowest levels of clubroot disease.
Association Yield, pods per plant and 1000-grain weight decreased as the DSI increased in all cultivars.
Association Yield was affected by DSI and cultivar.
Association Yield was not affected by clubroot pathotype.
Association A 1% increase in DSI was associated with a 0.26% reduction in field yield.
Association The rate of yield reduction was similar among canola cultivars.
Association Overall yield loss was lower in resistant canola hosts, as they developed less disease.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

At 70 cm spacing INV1165 yield was 42.4 t/ha, a decrease of 1.8 t/ha.

Taxon: winter rapeBrassica napust0
Material: INV1165e0
Outcome: yielde0
Direction: decreasee0
Value: 42.4 t/hae0
Comparator: narrow-row method (15 cm)e0

Not reportedTreatment

Verbatim

e0
“The yield of hybrid INV1165, with this sowing method, was 42.4 t/ha. At the same time, the decrease in the yield of rapeseed compared to the narrow-row method (15 cm) was 1.8 t/ha.”
✓ located verbatim in the source · abstract, characters 5088–5268

t0
“WINTER RAPE”
✓ located verbatim in the source · title, characters 29–40

Title

FORMATION OF PRODUCTIVITY OF WINTER RAPE HYBRIDS DEPENDING ON ROW SPACING

O. S. Zabarnyi; T. A. Zabarna Naukovì dopovìdì Nacìonalʹnogo unìversitetu bìoresursiv ì prirodokoristuvannâ Ukraïni 2023. doi:10.31548/dopovidi5(105).2023.008

Other claims from this paper (18)

Observation At 15 cm spacing INV1030 plants were 157 cm tall.
Observation At 15 cm spacing INV1165 plants were 161 cm tall.
Intervention effect At 40 cm spacing INV1030 height decreased to 151 cm.
Intervention effect At 40 cm spacing INV1165 height decreased to 153 cm.
Observation At 70 cm spacing INV1130 height was 145 cm.
Observation At 70 cm spacing INV1065 height was 148 cm.
Observation INV1030 seed oil content was 48.8% at 15 cm spacing.
Observation INV1165 seed oil content was 46.5% at 15 cm spacing.
Observation INV1030 seed oil content was 49.5% at 40 cm spacing.
Observation INV1165 seed oil content was 47.2% at 40 cm spacing.
Observation INV1030 seed oil content reached 50.3% at 70 cm spacing.
Observation INV1165 seed oil content reached 48.0% at 70 cm spacing.
Observation Thousand seed weight was 3.8-3.9 g at 15 cm spacing.
Intervention effect Thousand seed weight increased to 4.2-4.4 g at 40 cm spacing.
Observation At 70 cm spacing INV1030 thousand seed weight was 4.7 g.
Observation At 70 cm spacing INV1165 thousand seed weight was 4.8 g.
Observation INV1030 yield was 43.3 t/ha at 15 cm spacing.
Observation INV1165 yield was 44.2 t/ha at 15 cm spacing.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each 1% increase in virus incidence was associated with a yield decrease of 12 kg/ha at site A and 6 kg/ha at site B.

Taxon: Brassica napusBrassica napuse0
Treatment: 1% increase in virus incidencee1
Outcome: yielde1
Direction: decreasee1
Value: 12 (site A) and 6 (site B) kg/hae1

Verbatim

e0
“field experiments with Brassica napus (canola, oilseed rape)”
✓ located verbatim in the source · abstract, characters 200–260

e1
“for each 1% increase in virus incidence there was a yield decrease of 12 (site A) and 6 (site B) kg/ha”
✓ located verbatim in the source · abstract, characters 1184–1286

Title

Yield-limiting potential of Beet western yellows virus in Brassica napus

R. A. C. Jones; B. A. Coutts; J. Hawkes Australian Journal of Agricultural Research 2007. doi:10.1071/ar06391

Other claims from this paper (17)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The oil-yield decrease at flowering to stem elongation exceeded that at other stages.

Taxon: canolaBrassica napus var. napust0
Treatment: flowering stage to stem elongation stagee0
Outcome: oil yieldse0
Direction: decreasee0
Comparator: other stagese0

Verbatim

e0
“The decrease of oil yields at the flowering stage to stem elongation stage was more than the other stages.”
✓ located verbatim in the source · abstract, characters 1268–1374

t0
“Canola (Brassica napus L.)”
✓ located verbatim in the source · title, characters 91–117

Title

Effects of Water Deficit Stress on Several Quantitative and Qualitative Characteristics of Canola (Brassica napus L.) Cultivars

Mohammad HOSSEINI; Payman HASSIBI Notulae Scientia Biologicae 2011. doi:10.15835/nsb336135

Other claims from this paper (11)

Association Water deficit and cultivar interacted in biological yield, seed oil yield and harvest index.
Association Water deficit and cultivar interacted in dry matter and economic yield.
Intervention effect Water deficit reduced grain oil yields.
Observation Hyola 308 under early stem elongation to early flowering stress had the lowest oil yield, 1.1 g plants-1.
Observation Hyola 401 without stress had the highest oil yield, 4.3 g plants-1.
Intervention effect Water deficit reduced harvest index at all three stress levels.
Intervention effect Water deficit reduced economic yield.
Intervention effect Water deficit reduced biological yield.
Observation Hyola 401 had a stress susceptibility index of 0.914 under stress from stem elongation to early sac emergence.
Observation Hyola 308 had a stress susceptibility index of 1.12 under the same stress stage.
Association Hyola 308 was more sensitive to water deficit than Hyola 401.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Fresh forage yield decreased at later harvest dates, and the decrease varied among planting ratios.

Taxon: canolaBrassica napus var. napust0
Treatment: harvested at later datese3
Outcome: Fresh forage yielde3
Direction: decreasede3
Qualifier: varied among planted ratiose3

Verbatim

t0
“Evaluation of Winter Canola for Forage Yield and Quality in Comparison to Wheat”
✓ located verbatim in the source · title, characters 0–79

e3
“Fresh forage yield harvested at later dates decreased and this decrease varied among planted ratios particularly with increase of wheat ratio in the intercrop”
✓ located verbatim in the source · abstract, characters 679–837

Title

Evaluation of Winter Canola for Forage Yield and Quality in Comparison to Wheat

U. R. Bishnoi; Suresh Kumar; Srinivasa Rao Mentreddy 2010

Other claims from this paper (6)

“yield decrease”

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