By interacting organism › Plants › Amaranthaceae › Amaranthus deflexus

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Amaranthus deflexus showed the highest sensitivity to the Brassica extracts.

Taxon: BrassicaBrassicat0
Interactor: A. deflexusAmaranthus deflexuse1weed
Outcome: sensitivitye1
Direction: higheste1

Verbatim

t0
“Control of Amaranthus spp. using the allelopathic potential of Brassica extracts”
✓ located verbatim in the source · title, characters 0–80

e1
“Extract concentrations of 50% and 100% completely inhibited both germination and seedling development across all Amaranthus species, with A. deflexus exhibiting the highest sensitivity”
✓ located verbatim in the source · abstract, characters 667–851

Title

Control of Amaranthus spp. using the allelopathic potential of Brassica extracts

M. R. Barbosa; P. A. Monquero Brazilian Journal of Biology 2025. doi:10.1590/1519-6984.296196

Other claims from this paper (11)

Intervention effect Extract concentrations of 50% and 100% completely inhibited germination and seedling development of Amaranthus, compared with 0%.
Intervention effect The 12% extract concentration unexpectedly stimulated growth of all tested Amaranthus species, compared with 0%.
Intervention effect All extracts negatively affected the germination speed index of Amaranthus, with a 100% reduction at the highest concentration.
Intervention effect Hypocotyl length of Amaranthus did not differ significantly among treatments.
Intervention effect Root system development of Amaranthus was severely impaired by the extracts.
Intervention effect Shoot growth of Amaranthus was poor under the extracts.
Intervention effect Seedlings exposed to increasing extract doses showed clear phytotoxic symptoms that culminated in necrosis.
Observation Phytochemical screening detected coumarins, steroids and flavonoids in the Brassica extracts.
Observation Phytochemical screening detected phenolics, glycosides and tannins in the Brassica extracts.
Observation Phytochemical screening detected terpenes in the Brassica extracts.
Recommendation The authors suggest brassicaceous extracts may be a viable alternative for managing Amaranthus species.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Amaranthus deflexus was the most important species of the weed community in cassava.

Taxon: cassavaManihot esculentae0
Interactor: Amaranthus deflexusAmaranthus deflexuse3weed
Outcome: most important speciese3

Verbatim

e0
“identify the weed community associated with cassava cultivation”
✓ located verbatim in the source · abstract, characters 256–319

e3
“The most important species was Amaranthus deflexus”
✓ located verbatim in the source · abstract, characters 684–734

Title

Phytosociological survey of weeds in cassava growth area

Hélder Horácio Eduardo; Bernardino José António Cabo Isac; Carlos Sousa Elias; et al. African Journal of Agricultural Research 2024. doi:10.5897/ajar2022.16212

Other claims from this paper (3)

Observation The weed community in the cassava area comprised 27 weed species.
Observation The weed community comprised 15 families.
Observation Asteraceae had greater emphasis in the weed community than other families, followed by Poaceae.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Black oats, pencilflower and jack bean had higher potential for controlling Amaranthus hybridus and Amaranthus deflexus

Taxon: cover cropse1
Material: Black oats, pencilflower, and jack beane2
Treatment: cover crop phytomasse0
Interactor: Amaranthus hybridusAmaranthus hybriduse2weed
Second interactor: Amaranthus deflexusAmaranthus deflexuse2weed
Outcome: potential for controllinge2
Direction: highere2

Not reportedComparator

Verbatim

e0
“this study aimed to evaluate the effect of using cover crop phytomass to control species of the genus Amaranthus”
✓ located verbatim in the source · abstract, characters 413–525

e1
“The treatments resulted from the combination of nine cover crops with Crotalaria species (Crotalaria juncea, Crotalaria breviflora, and Crotalaria spectabilis), black oats (Avena strigosa), sorghum (Sorghum bicolor), jack bean (Canavalia ensiformis), pigeonpea (Cajanus cajan), lablab bean (Dolichos lablab), and pencilflower (Stylosanthes macrocephala)”
✓ located verbatim in the source · abstract, characters 826–1179

e2
“Black oats, pencilflower, and jack bean showed higher potential for controlling Amaranthus hybridus and Amaranthus deflexus”
✓ located verbatim in the source · abstract, characters 1382–1505

Title

Use of vegetation cover in the control of different species of the genus Amaranthus

Luiz Gustavo Castro Guidette; Bruna Ferrari Schedenffeldt; Patricia Andrea Monquero Revista Agro mbiente On-line 2023. doi:10.18227/1982-8470ragro.v17i00.7310

Other claims from this paper (2)

Intervention effect Sorghum and jack bean were more efficient in controlling Amaranthus viridis
Intervention effect Phytomass amounts T100% and T200% were the most promising for suppressing weeds in green mass terms

Observationobservedoriginal resultmeasured

Claim · model-written summary

All A. deflexus populations were glyphosate sensitive.

Taxon: citrusCitrust0
Interactor: A. deflexusAmaranthus deflexuse0weed
Outcome: A. deflexuse0

Not reportedDirection

Verbatim

e0
“all populations of A. deflexus, A. hybridus, B. pilosa, and T. procumbens were sensitive to glyphosate”
✓ located verbatim in the source · abstract, characters 921–1023

t0
“Citrus Orchards”
✓ located verbatim in the source · title, characters 63–78

Title

Occurrence of Multiple Glyphosate-Resistant Weeds in Brazilian Citrus Orchards

Gabriel da Silva Amaral; Ricardo Alcántara-de la Cruz; Rodrigo Martinelli; et al. AgriEngineering 2023. doi:10.3390/agriengineering5020067

Other claims from this paper (15)

Observation All A. hybridus populations were glyphosate sensitive.
Observation All B. pilosa populations were classified glyphosate sensitive.
Observation All T. procumbens populations were glyphosate sensitive.
Observation Three Olimpia B. pilosa populations showed signs of resistance, with LD50 of 355–460 g ae ha−1.
Observation C. bonariensis populations were resistant, within the reported 1.9 to 27.6 resistance-ratio range.
Observation C. elata populations were resistant, within the reported 1.9 to 27.6 resistance-ratio range.
Observation D. insularis populations were resistant, within the reported 1.9 to 27.6 resistance-ratio range.
Observation Solanum americanum showed resistance ratios of 4.3 to 25.4.
Observation Nossa Senhora had one resistant weed species.
Observation Olhos D’agua had two resistant weed species.
Observation Passatempo had two resistant weed species.
Observation Araras had four resistant weed species.
Observation Cordeiropolis had up to five resistant weed species.
Observation Mogi-Mirim had up to five resistant weed species.
Observation Most sampled orchards contained more than one resistant weed species.

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Management of Amaranthus deflexus is advised despite low indices because of herbicide resistance cases.

Taxon: soybeanGlycine maxe1
Interactor: Amaranthus deflexusAmaranthus deflexuse0weed
Outcome: managing the dicotyledons Amaranthus deflexuse0
Qualifier: despite their low indices because of herbicide resistant casese0

Verbatim

e0
“Attention is required for managing the dicotyledons Amaranthus deflexus, Conyza canadensis and Senna obtusifolia despite their low indices because of herbicide resistant cases.”
✓ located verbatim in the source · abstract, characters 1178–1354

t0
“Crop management and its effects on weed occurrences”
✓ located verbatim in the source · title, characters 0–51

e1
“cotton/soybean/Urochloa rotation”
✓ located verbatim in the source · abstract, characters 922–954

Title

Crop management and its effects on weed occurrences

Marco Aurelio Castro; Sebastião Ferreira de Lima; Germison Vital Tomquelski; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2021

Other claims from this paper (9)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Crotalaria ochroleuca straw suppressed Amaranthus deflexus, especially with incorporated plus surface and surface management.

Taxon: Crotalaria ochroleucaCrotalaria ochroleucat0
Treatment: different straw amountse0
Interactor: A. deflexusAmaranthus deflexuse0weed
Outcome: suppressing of A. deflexuse0
Direction: suppressinge0
Qualifier: incorporate+surface and surfacee0
Comparator: control treatment without the use of cover crope1

Verbatim

t0
“Crotalaria ochroleuca cover crop”
✓ located verbatim in the source · title, characters 22–54

e0
“The management of different straw amounts was efficient, mainly when the incorporate+surface and surface in suppressing of A. deflexus forms were used.”
✓ located verbatim in the source · abstract, characters 905–1056

e1
“a control treatment without the use of cover crop (control -0 t ha -1 )”
✓ located verbatim in the source · abstract, characters 695–766

Title

Suppression effect of Crotalaria ochroleuca cover crop on Amaranthus deflexus emergence and development

Tiago de Oliveira Sousa; Wéverson Lima Fonseca; Adaniel Sousa dos Santos; et al. Australian Journal of Crop Science 2016. doi:10.21475/ajcs.2016.10.10.p7817

Observationobservedoriginal resultmeasured

Claim · model-written summary

Dicotyledonous weeds were most relevant under no-tillage in maize and bean crops.

Taxon: maize and beane1
Interactor: Amaranthus deflexusAmaranthus deflexuse0weed
Outcome: dicotyledonous weed speciese0
Setting: no-tillagee0

Verbatim

e0
“in no-tillage the dicotyledonous weed species (Amaranthus deflexus, Bidens pilosa, Euphorbia heterophylla, Galinsoga parviflora Ipomoea grandifolia) were the most relevant.”
✓ located verbatim in the source · abstract, characters 790–962

e1
“successive maize and bean crops”
✓ located verbatim in the source · abstract, characters 32–63

Title

Population Dynamics of Weeds in No-Tillage and Conventional Crop Systems

Aroldo Machado; Adriano Jakelaitis; Lino Ferreira; et al. Journal of Environmental Science and Health Part B 2005. doi:10.1081/pfc-200034259

Other claims from this paper (3)

Amaranthus deflexus 7 claims

7 claims