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Barley populations for drought tolerance

Authors: Lasa Dolhagaray, José Manuel; Pavón Freire, Alberto; Medina del Río, Blanca;

Barley populations for drought tolerance

Abstract

[ES} Tras la evaluación en condiciones de sequía de familias S1 procedentes de cuatro Cruzamientos Compuestos de cebada, las poblaciones CC XXXIX desarrollada en USA para condiciones de un único aporte de agua, y CRC-1 desarrollada en España para tolerancia a sequía, han sido seleccionadas para su utilización como puente en la introducción y recombinación de antiguos cultivares locales, y su posterior manejo mediante selección recurrente. Ambas poblaciones muestran un aceptable nivel de tolerancia a sequía y elevada variabilidad intrapoblacional para la mayor parte de los caracteres estudiados. Las estimaciones visuales de ahijamiento en fase de elongación, y de biomasa en el inicio de espigado, ofrecen buenas posibilidades como indicadores de la producción.

[EN] After evaluation under drought conditions of S1 progenies from four different Composite Crosses, CC XXXIX developed in US for one irrigation culture regime, and CRC-1 developed in Spain for drought tolerance, were selected to be used as a bridge for the introduction and recombination of local adapted old cultivars, and to undergo recurrent selection processes. Both populations showed acceptable drought tolerance, and high within population variability for most of the traits studied. Visual scores on tillering at stem elongation, and biomass at spike emergence offer good opportunities as indirect indicators of yield.

Work financed by CAICYT and CONAI-DGA.

Peer reviewed

Keywords

Drought, Barley, Populations, MSFRS

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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