Search claims · PlantClaims

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Atrazine mixtures controlled larger black pigweed.

Taxon: sorghumSorghumt0
Treatment: atrazine mixturese0
Interactor: black pigweede0weed
Outcome: black pigweede0
Direction: effectivee0

Not reportedComparator

Verbatim

e0
“for larger black pigweed (up to 15 cm diameter) atrazine at 2.25 kg/ha and atrazine mixtures were effective”
✓ located verbatim in the source · abstract, characters 683–790

t0
“sorghum”
✓ located verbatim in the source · title, characters 81–88

Title

Effect of herbicides on black pigweed and sesbania pea, and yields of five grain sorghum cultivars in central Queensland

SR Walker; WH Hazard; AF Mich; et al. Australian Journal of Experimental Agriculture 1988. doi:10.1071/ea9880327

Other claims from this paper (15)

Intervention effect Atrazine at 1.0 kg a.i./ ha controlled small black pigweed.
Intervention effect Atrazine at 1.0 kg a.i./ ha controlled small sesbania pea.
Intervention effect Atrazine at 2.25 kg/ha controlled larger black pigweed.
Intervention effect Atrazine at 2.25 kg/ha controlled larger sesbania pea.
Intervention effect Picloram plus 2,4-D controlled larger sesbania pea.
Intervention effect Fluroxypyr controlled larger sesbania pea.
Intervention effect Atrazine mixtures controlled larger sesbania pea.
Intervention effect Atrazine mixtures at 1.0 kg/ha controlled both weeds as effectively as atrazine alone at 2.25 kg/ha.
Intervention effect Several herbicide treatments caused sorghum injury symptoms.
Intervention effect These herbicide treatments delayed sorghum flowering.
Intervention effect These herbicide treatments sometimes reduced sorghum grain yield.
Observation Sorghum susceptibility to the herbicides varied with seasons and cultivars.
Intervention effect Yield reductions were smaller with lower rate herbicides in atrazine mixtures than alone.
Intervention effect All sorghum cultivars tolerated atrazine at 4.5 kg/ha.
Recommendation The authors recommend spraying black pigweed under 10 cm with atrazine at 1.0 kg/ha.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Redroot pigweed root traits declined when grown with black oat

Taxon: Redroot pigweede1
Interactor: black oatAvena strigosae1weed
Outcome: Redroot pigweed root traitse1
Direction: declinede1

Verbatim

t0
“black oat”
✓ located verbatim in the source · title, characters 20–29

e1
“Redroot pigweed root traits declined when grown with black oat”
✓ located verbatim in the source · abstract, characters 585–647

Title

Characterization of black oat root exudates in the presence of interspecific weed species and intraspecific neighbors, and their effects on root traits

Çağla Görkem Eroğlu; Alexandra A. Bennett; Teresa Steininger-Mairinger; et al. Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1729814

Other claims from this paper (6)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Atrazine at 1.0 kg a.i./ ha controlled small black pigweed.

Taxon: sorghumSorghumt0
Treatment: atrazine at 1.0 kg a.i./ hae0
Interactor: black pigweede0weed
Outcome: black pigweede0
Direction: controllede0

Not reportedComparator

Verbatim

e0
“Small black pigweed and sesbania pea (< 10 cm diameter) were controlled with atrazine at 1.0 kg a.i./ ha”
✓ located verbatim in the source · abstract, characters 571–675

t0
“sorghum”
✓ located verbatim in the source · title, characters 81–88

Title

Effect of herbicides on black pigweed and sesbania pea, and yields of five grain sorghum cultivars in central Queensland

SR Walker; WH Hazard; AF Mich; et al. Australian Journal of Experimental Agriculture 1988. doi:10.1071/ea9880327

Other claims from this paper (15)

Intervention effect Atrazine at 1.0 kg a.i./ ha controlled small sesbania pea.
Intervention effect Atrazine at 2.25 kg/ha controlled larger black pigweed.
Intervention effect Atrazine mixtures controlled larger black pigweed.
Intervention effect Atrazine at 2.25 kg/ha controlled larger sesbania pea.
Intervention effect Picloram plus 2,4-D controlled larger sesbania pea.
Intervention effect Fluroxypyr controlled larger sesbania pea.
Intervention effect Atrazine mixtures controlled larger sesbania pea.
Intervention effect Atrazine mixtures at 1.0 kg/ha controlled both weeds as effectively as atrazine alone at 2.25 kg/ha.
Intervention effect Several herbicide treatments caused sorghum injury symptoms.
Intervention effect These herbicide treatments delayed sorghum flowering.
Intervention effect These herbicide treatments sometimes reduced sorghum grain yield.
Observation Sorghum susceptibility to the herbicides varied with seasons and cultivars.
Intervention effect Yield reductions were smaller with lower rate herbicides in atrazine mixtures than alone.
Intervention effect All sorghum cultivars tolerated atrazine at 4.5 kg/ha.
Recommendation The authors recommend spraying black pigweed under 10 cm with atrazine at 1.0 kg/ha.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Atrazine at 2.25 kg/ha controlled larger black pigweed.

Taxon: sorghumSorghumt0
Treatment: atrazine at 2.25 kg/hae0
Interactor: black pigweede0weed
Outcome: black pigweede0
Direction: effectivee0
Qualifier: up to 15 cm diametere0

Not reportedComparator

Verbatim

e0
“for larger black pigweed (up to 15 cm diameter) atrazine at 2.25 kg/ha and atrazine mixtures were effective”
✓ located verbatim in the source · abstract, characters 683–790

t0
“sorghum”
✓ located verbatim in the source · title, characters 81–88

Title

Effect of herbicides on black pigweed and sesbania pea, and yields of five grain sorghum cultivars in central Queensland

SR Walker; WH Hazard; AF Mich; et al. Australian Journal of Experimental Agriculture 1988. doi:10.1071/ea9880327

Other claims from this paper (15)

Intervention effect Atrazine at 1.0 kg a.i./ ha controlled small black pigweed.
Intervention effect Atrazine at 1.0 kg a.i./ ha controlled small sesbania pea.
Intervention effect Atrazine mixtures controlled larger black pigweed.
Intervention effect Atrazine at 2.25 kg/ha controlled larger sesbania pea.
Intervention effect Picloram plus 2,4-D controlled larger sesbania pea.
Intervention effect Fluroxypyr controlled larger sesbania pea.
Intervention effect Atrazine mixtures controlled larger sesbania pea.
Intervention effect Atrazine mixtures at 1.0 kg/ha controlled both weeds as effectively as atrazine alone at 2.25 kg/ha.
Intervention effect Several herbicide treatments caused sorghum injury symptoms.
Intervention effect These herbicide treatments delayed sorghum flowering.
Intervention effect These herbicide treatments sometimes reduced sorghum grain yield.
Observation Sorghum susceptibility to the herbicides varied with seasons and cultivars.
Intervention effect Yield reductions were smaller with lower rate herbicides in atrazine mixtures than alone.
Intervention effect All sorghum cultivars tolerated atrazine at 4.5 kg/ha.
Recommendation The authors recommend spraying black pigweed under 10 cm with atrazine at 1.0 kg/ha.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Upon black oat root exudate application, pronounced effects on redroot pigweed root traits were observed

Taxon: redroot pigweede1
Treatment: black oat root exudate applicatione1
Interactor: black oatAvena strigosae1weed
Outcome: redroot pigweed root traitse1

Not reportedDirection

Verbatim

t0
“black oat”
✓ located verbatim in the source · title, characters 20–29

e1
“Upon black oat root exudate application, pronounced effects on redroot pigweed root traits were observed”
✓ located verbatim in the source · abstract, characters 695–799

Title

Characterization of black oat root exudates in the presence of interspecific weed species and intraspecific neighbors, and their effects on root traits

Çağla Görkem Eroğlu; Alexandra A. Bennett; Teresa Steininger-Mairinger; et al. Frontiers in Plant Science 2026. doi:10.3389/fpls.2026.1729814

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Support tissue to leaf ratios decreased in eastern black nightshade and tumble pigweed as irradiance declined.

Taxon: eastern black nightshade and tumble pigweede0
Outcome: decreasede0
Direction: decreasede0

Verbatim

e0
“decreased for eastern black nightshade and tumble pigweed”
✓ located verbatim in the source · abstract, characters 875–932

Title

Response of Soybeans (Glycine max) and Four Broadleaf Weeds to Reduced Irradiance

Edward W. Stoller; Randy A. Myers Weed Science 1989. doi:10.1017/s0043174500072428

Other claims from this paper (8)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hexane extract inhibited velvetleaf, proso millet, black nightshade and redroot pigweed germination.

Taxon: SweetpotatoIpomoea batatast0
Treatment: Ite0
Outcome: velvetleaf, proso millet, black nightshade, and redroot pigweed germinatione0
Direction: inhibitede0

Not reportedComparator

Verbatim

e0
“It inhibited velvetleaf, proso millet, black nightshade, and redroot pigweed germination”
✓ located verbatim in the source · abstract, characters 302–390

t0
“Sweetpotato”
✓ located verbatim in the source · title, characters 47–58

Title

Differential Inhibition of Seed Germination by Sweetpotato (Ipomoea batatas) Root Periderm Extracts

Joseph K. Peterson; Howard F. Harrison Weed Science 1991. doi:10.1017/s0043174500057970

Other claims from this paper (17)

Observation Hexane extract was least inhibitory.
Intervention effect Hexane extract reached 56% maximum inhibition of black nightshade at 200 mg periderm extracted per ml.
Intervention effect Ethyl acetate fraction inhibited germination of seven named species.
Observation Ethyl acetate I50 was 17 mg periderm extracted per ml for black nightshade.
Observation Ethyl acetate I50 was 201 mg per ml for coffee senna.
Intervention effect Ethyl acetate extract did not inhibit sweetpotato, tall morningglory or eclipta germination at tested concentrations.
Intervention effect Aqueous methanol extract was more inhibitory than hexane or ethyl acetate extracts.
Observation Species varied considerably in response to aqueous methanol extract.
Observation Aqueous methanol I50 was 0.5 mg ml –1 for velvetleaf.
Observation Aqueous methanol I50 was 0.6 mg ml –1 for proso millet.
Observation Aqueous methanol I50 was 2.8 mg ml –1 for black nightshade.
Observation Aqueous methanol I50 was 4.4 mg ml –1 for goosegrass.
Observation Aqueous methanol I50 was 5.1 mg ml –1 for sweetpotato.
Observation Aqueous methanol I50 was 9.6 mg ml –1 for tall morningglory.
Observation Aqueous methanol I50 was 15.7 mg ml –1 for eclipta.
Observation Aqueous methanol I50 was 21.0 mg ml –1 for coffee senna.
Observation Aqueous methanol I50 was 25.8 mg ml –1 for pigweed.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Pigweed leaf extract reduced black gram germination from 34% to 6%.

Taxon: mash beane0
Treatment: leaf extract of black pigweede0
Interactor: black pigweede0weed
Outcome: mash bean leaf germination percentagee0
Direction: decreasee0
Value: 34% to 6%e0

Not reportedComparator

Verbatim

e0
“leaf extract of black pigweed decrease the mash bean leaf germination percentage (34% to 6%)”
✓ located verbatim in the source · abstract, characters 388–480

Title

The BIOHERBICIDAL ACTIVITY OF Pseudomonas SPP (PF-097) To SUPRESS THE ALLELOPATHIC STRESS OF Trianthema portulacastrum LEAF EXTRACT ON Vigna mungo

Sumaira Abdul Raouf; Nadia Jabeen; Nadia Jabeen JOURNAL OF WEED SCIENCE RESEARCH 2021. doi:10.28941/pjwsr.v27i4.1015

Other claims from this paper (16)

Intervention effect Pigweed leaf extract reduced seedling length from 10 cm to 3 cm.
Intervention effect Pigweed leaf extract reduced seedling fresh biomass from 2.4 g to 0.94 g.
Intervention effect Pigweed leaf extract reduced seedling dry biomass from 1.2 g to 0.47 g.
Intervention effect Pseudomonas PF-097 increased germination by 8–42%.
Intervention effect Pseudomonas PF-097 increased seedling length by 12–54%.
Intervention effect Pseudomonas PF-097 increased seedling fresh biomass by 8–17%.
Intervention effect Pseudomonas PF-097 increased seedling dry biomass from 0.47 g to 1.2 g.
Intervention effect Whole pigweed material reduced shoot length from 46 cm to 18 cm.
Intervention effect Whole pigweed material reduced shoot fresh biomass from 2.6 g to 0.66 g.
Intervention effect Whole pigweed material reduced shoot dry biomass from 1.31 g to 0.33 g.
Intervention effect Pseudomonas PF-097 increased shoot length by 4–12% in vivo.
Intervention effect Pseudomonas PF-097 increased shoot fresh biomass by 18–35% in vivo.
Intervention effect Pseudomonas PF-097 increased shoot dry biomass by 17–35% in vivo.
Intervention effect Pigweed treatment increased catalase and peroxidase activity.
Intervention effect Pseudomonas treatment decreased catalase and peroxidase activity.
Intervention effect Pseudomonas amendment significantly raised seedling protein content against negative treatments.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Emergence of common lambsquarters, redroot pigweed and black nightshade was not affected by steam application.

Taxon: common lambsquarters, redroot pigweed, and black nightshadee5
Treatment: steam applicatione5
Outcome: Emergencee5
Direction: not affectede5

Not reportedComparator

Verbatim

e5
“Emergence of common lambsquarters, redroot pigweed, and black nightshade was not affected by steam application”
✓ located verbatim in the source · abstract, characters 874–984

Title

Effect of Steam Application on Cropland Weeds¹

ROBERT L. KOLBERG; LORI J. WILES Weed Technology 2002. doi:10.1614/0890-037x(2002)016[0043:eosaoc]2.0.co;2

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

large crabgrass, smooth pigweed, and eastern black nightshade reached the reported emergence threshold after 280 DD.

Taxon: large crabgrass, smooth pigweed, and eastern black nightshadee0
Outcome: emergede0
Value: after 280 DDe0

Not reportedDirection

Verbatim

e0
“The last weeds to emerge were large crabgrass, smooth pigweed, and eastern black nightshade, which emerged after 280 DD.”
✓ located verbatim in the source · abstract, characters 803–923

Title

Predicting weed emergence for eight annual species in the northeastern United States

Matthew W. Myers; William S. Curran; Mark J. VanGessel; et al. Weed Science 2004. doi:10.1614/ws-04-025r

Other claims from this paper (4)

“black pigweed”

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Over time

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