Trade ‐ off between seed yield components and seed composition traits in sea level quinoa in response to sowing dates

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Background and objectives: The relative influences of genetic and environmental factors on seed composition traits as well as the interrelations among these attributes and seed yield are largely unknown in quinoa. These aspects are approached here through experiments conducted at a low elevation tem...

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Detalles Bibliográficos
Otros Autores: Curti, Ramiro Néstor, Sanahuja, María del Carmen, Vidueiros, Silvina M., Pallaro, Anabel N., Bertero, Héctor Daniel
Formato: Artículo
Lenguaje:Inglés
Materias:
EMBRYO WEIGHT
GENOTYPE-BY-ENVIRONMENT INTERACTION
PROXIMATE COMPOSITION
SEED QUALITY
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2018curti.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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024 |a 10.1002/cche.10088 
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245 1 0 |a Trade ‐ off between seed yield components and seed composition traits in sea level quinoa in response to sowing dates 
520 |a Background and objectives: The relative influences of genetic and environmental factors on seed composition traits as well as the interrelations among these attributes and seed yield are largely unknown in quinoa. These aspects are approached here through experiments conducted at a low elevation temperate environment with four quinoa genotypes sown at three dates and the hypothesis that variation in seed composition traits can be explained by the relative embryo size was tested. Findings: There was an important range of variation for almost all seed composition traits, and the genotype‐by‐sowing date (G × S) interaction effect was significant for yield and its components plus protein and oil concentrations. Variation in fat and protein concentration was associated with embryo and seed size but not with relative embryo size (trait indifferent to environmental and genetic factors). A winter sowing date induced positive associations between fat and carbohydrate concentrations, seed, and embryo weight, but negative associations among almost all of these traits and seed yield and protein content. On the other hand, a midspring sowing date induced positive associations between seed yield and protein content. Conclusions: Winter sowing dates are suited for obtaining heavier seeds associated with higher fat and carbohydrates concentrations under the explored conditions; whereas under mid‐spring sowings higher seed yield, associated with high protein content but at the expense of smaller seeds are achieved. Significance and novelty: Variability in the main seed composition traits in sea level quinoa cultivars was explained mostly by G × S interaction. The choice of genotypes and sowing dates that modify the trade‐offs between the main yield and seed composition traits might contribute to obtain a specific quality and higher yields. Variation in protein and fat concentrations was no associated with the relative embryo size. 
653 |a EMBRYO WEIGHT 
653 |a GENOTYPE-BY-ENVIRONMENT INTERACTION 
653 |a PROXIMATE COMPOSITION 
653 |a SEED QUALITY 
700 1 |9 36519  |a Curti, Ramiro Néstor  |u Universidad Nacional de Salta. Facultad de Ciencias Naturales and Sede Regional Sur. Laboratorio de Investigaciones Botánicas (LABIBO). Salta, Argentina.  |u CONICET - Universidad Nacional de Salta. Salta, Argentina. 
700 1 |9 68167  |a Sanahuja, María del Carmen  |u Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Cátedra de Nutrición. Buenos Aires, Argentina. 
700 1 |9 68168  |a Vidueiros, Silvina M.  |u Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Cátedra de Nutrición. Buenos Aires, Argentina. 
700 1 |9 68169  |a Pallaro, Anabel N.  |u Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Cátedra de Nutrición. Buenos Aires, Argentina. 
700 1 |9 8170  |a Bertero, Héctor Daniel  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Buenos Aires, Argentina.  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. 
773 0 |t Cereal chemistry  |w SECS000057  |g vol.95, no.5 (2018), p.734-741, tbls., grafs. 
856 |f 2018curti  |i en reservorio  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2018curti.pdf  |x ARTI201902 
856 |z LINK AL EDITOR  |u https://www.wiley.com 
942 1 |c ARTICULO 
942 1 |c ENLINEA 
976 |a AAG 

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