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dc.contributor.author
Gastaldi, A.
dc.contributor.author
Alvarez Prado, Santiago
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dc.contributor.author
Arduini, J. A.
dc.contributor.author
Miralles, Daniel Julio
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dc.date.available
2022-09-13T13:57:33Z
dc.date.issued
2020-04
dc.identifier.citation
Gastaldi, A.; Alvarez Prado, Santiago; Arduini, J. A.; Miralles, Daniel Julio; Optimizing wheat (Triticum aestivum L.) management under dry environments: A case study in the West Pampas of Argentina; Elsevier Science; Agricultural Water Management; 233; 106092; 4-2020; 1-8
dc.identifier.issn
0378-3774
dc.identifier.uri
http://hdl.handle.net/11336/168517
dc.description.abstract
Water shortage, caused by large variations in the amount, frequency and timing of rainfall during the crop cycle, is one of the major abiotic stresses limiting crop production. In this context, environmental variability represents a significant challenge for farmers as optimal management practices vary from season to season. The aim of this study was to optimize wheat (Triticum aestivum L.) management practices considering rainfall variability in the West sandy Pampas of Argentina. This region is characterized by a high annual rainfall variability with predominant summer rainfall and probable deficits during winter and early spring in analogy with many other regions around the world. Two commercial cultivars, commonly used by farmers, with different time to flowering (LF: late flowering; EF: early flowering), under three initial soil water conditions (well-watered, moderately-watered and dry conditions) at three sowing dates were simulated with CERES-WHEAT for a series of 39 years. Wheat yield was higher for the LF than the EF cultivar under average (LF = 5437 vs. EF=5112 kg ha−1) and no-water restriction years (LF = 7915 vs. EF=6956 kg ha−1), while the opposite was observed in dry years (EF = 4128 vs. LF=3255 kg ha−1). Reductions in grain yield were associated with reductions in grain number, mainly explained by a lower partitioning to reproductive organs, principally limited by water shortage. The LF cultivar used more water than the EF cultivar before anthesis depleting soil water reserves (p < 0.05) and losing the yield potential advantage in dry years. Genotypic differences were more evident under initial soil well-watered conditions (16 %) compared to moderately-watered (13 %) or dry conditions (9%). Therefore, cultivar selection could partially compensate the deleterious impacts of water deficit on wheat yield under early water stress pattern environments. These results highlight the relevance of design management practices under variable water scenarios in order to reduce yield gaps.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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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
CERES-WHEAT
dc.subject
DROUGHT
dc.subject
INTERANNUAL RAINFALL VARIABILITY
dc.subject
TRANSPIRATION
dc.subject
YIELD
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
Optimizing wheat (Triticum aestivum L.) management under dry environments: A case study in the West Pampas of Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-27T15:19:39Z
dc.journal.volume
233
dc.journal.number
106092
dc.journal.pagination
1-8
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Gastaldi, A.. Mab Consultora S.r.l.; Argentina
dc.description.fil
Fil: Alvarez Prado, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.description.fil
Fil: Arduini, J. A.. Mab Consultora S.r.l.; Argentina
dc.description.fil
Fil: Miralles, Daniel Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.journal.title
Agricultural Water Management
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0378377419304950
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.agwat.2020.106092
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