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dc.contributor.author
Oreja, Fernando Hugo
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dc.contributor.author
Batlla, Diego
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dc.contributor.author
de la Fuente, Elba Beatriz
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dc.date.available
2022-09-12T03:18:19Z
dc.date.issued
2021-05
dc.identifier.citation
Oreja, Fernando Hugo; Batlla, Diego; de la Fuente, Elba Beatriz; Effect of soybean crop structure on large crabgrass (Digitaria sanguinalis) growth and seed dormancy; Weed Science Society of America; Weed Science; 69; 3; 5-2021; 372-378
dc.identifier.issn
0043-1745
dc.identifier.uri
http://hdl.handle.net/11336/168233
dc.description.abstract
Crop-weed interactions are affected by environmental alterations resulting from a crop's presence, such as modifications in temperature, light quality and quantity, and moisture conditions that could modify weed performance. The objectives of this work were to study (1) how soybean [Glycine max (L.) Merr.] crop structure modifies the environment under the canopy and large crabgrass [Digitaria sanguinalis (L.) Scop.] plant structure, biomass, and seed production and dormancy; and (2) the relative importance of these environmental changes on the weed's characteristics. A field experiment in a completely randomized block design with five replicates was performed to evaluate narrow and wide interrow spacing and soybean maturity groups 3 and 4. Measured variables were intercepted solar radiation (RAD); red-far red (R-FR) ratio; humidity; minimum, maximum, and alternating temperatures; and weed biomass, tillers per plant, height, and seed dormancy. Crop canopy reduced solar radiation, R-FR ratio, and daily average maximum and alternating temperatures. Soybean presence reduced the weed biomass, tillers and seeds per plant, and seed dormancy. High solar radiation intercepted by the crop during the reproductive phase was the main environmental variable related to reductions in weed biomass, tillers per plant, and fecundity. The combination of low temperature and solar radiation received by developing seeds was more related to seed dormancy than the rest of the variables. Crop management decisions focused on the fact that keeping the crop canopy alive for a longer time at the end of the season would not only reduce the weed growth but also seed dormancy.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Weed Science Society of America
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MATERNAL EFFECTS
dc.subject
ROW SPACING
dc.subject
SEED GERMINATION
dc.subject
SOYBEAN MATURITY GROUP
dc.subject
WEED BIOMASS
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Effect of soybean crop structure on large crabgrass (Digitaria sanguinalis) growth and seed dormancy
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-23T20:53:18Z
dc.journal.volume
69
dc.journal.number
3
dc.journal.pagination
372-378
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Laurence
dc.description.fil
Fil: Oreja, Fernando Hugo. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Batlla, Diego. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: de la Fuente, Elba Beatriz. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.journal.title
Weed Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/wsc.2021.17
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/weed-science/article/abs/effect-of-soybean-crop-structure-on-large-crabgrass-digitaria-sanguinalis-growth-and-seed-dormancy/1035687D0FC5DCCDEF2A760CF2B56C80
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