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dc.contributor.author
Agüero, Juan José
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dc.contributor.author
Acreche, Martín Moisés
dc.contributor.author
Sühring, Silvia Susana
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dc.contributor.author
Bertero, Hector Daniel
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dc.contributor.author
Curti, Ramiro Nestor
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dc.date.available
2024-01-18T15:27:41Z
dc.date.issued
2023-06
dc.identifier.citation
Agüero, Juan José; Acreche, Martín Moisés; Sühring, Silvia Susana; Bertero, Hector Daniel; Curti, Ramiro Nestor; Genotype-dependent responses of Andean and Coastal quinoa to plant population density for yield and its physiological determinants in Northwest Argentina; Csiro Publishing; Crop and Pasture Science; 6-2023; 1-8
dc.identifier.issn
1836-5795
dc.identifier.uri
http://hdl.handle.net/11336/224163
dc.description.abstract
Context: In quinoa, similar yields are found under a wide range of plant population densities due to its phenotypic plasticity. Aims: This study aimed to identify optimal plant population densities for achieving attainable yields, in relation to the most adapted genotype for a given environment. Methods: Andean (RQ252 and RQ420) and Coastal (Titicaca and Puno) genotypes were tested at conventional (14 plants/m2) and low (7 plants/m2) plant population densities, in Dry Valley and Highland mega-environments for 2 years. Key results: More than 64% of total variation was explained by genotype, location, and interaction effects for grain yield, biomass, and harvest index. For these variables, the genotype × location × plant population density term presented the highest percentage of variation among triple and quadruple interaction terms. In the Highlands, grain yields decreased with plant population density for Andean genotypes (30-40%), in contrast to lower reductions for Coastal genotypes (9-20%). In the Dry Valleys, no effect of plant population density was found for all genotypes. In the Highlands, reductions in biomass and harvest index explained grain yield response, in parallel with increases in small grain percentage of up to 16% when frosts came early, related to uneven maturity at low plant population density. Conclusions: Attainable yields in Northwest Argentina were achieved by exploring local adaptation and response to plant population density of Andean genotypes in the Highlands, in contrast to stable yields of Coastal genotypes through locations and plant population densities. Implications: Understanding genotype-dependent responses to plant population density according to Northwest Argentina mega-environments can reduce yield gaps in quinoa production and refine breeding strategies.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Csiro Publishing
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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
ANDEAN AND COASTAL QUINOA
dc.subject
BIOMASS
dc.subject
GENOTYPE BY LOCATION BY PLANT POPULATION DENSITY INTERACTION
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GENOTYPE-DEPENDENT RESPONSE
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HARVEST INDEX
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LOCAL ADAPTATION
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NORTHWEST ARGENTINA
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YIELD STABILITY
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
Genotype-dependent responses of Andean and Coastal quinoa to plant population density for yield and its physiological determinants in Northwest 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
2024-01-18T15:11:43Z
dc.journal.pagination
1-8
dc.journal.pais
Australia
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dc.journal.ciudad
Canberra
dc.description.fil
Fil: Agüero, Juan José. Instituto Nacional de Tecnologia Agropecuaria. Centro Regional Salta-jujuy. Estacion Experimental Agropecuaria Abra Pampa. Agencia de Extension Rural Hornillos.; Argentina
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Fil: Acreche, Martín Moisés. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Salta-Jujuy. Estación Experimental Agropecuaria Salta; Argentina
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Fil: Sühring, Silvia Susana. Universidad Nacional de Salta; Argentina
dc.description.fil
Fil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Producción Vegetal; Argentina. 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: Curti, Ramiro Nestor. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Escuela de Agronomía. Laboratorio de Investigaciones Botánicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Crop and Pasture Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/?paper=CP23040
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1071/CP23040
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