SciELO - Scientific Electronic Library Online

vol.67 issue3Utilization of Microsatellites to Determine Genetic Variability of the Codling Moth Cydia pomonella L. (Lepidoptera: Tortricidae) in Central ChileGrowth-Yield Relationship of Grapevine Cultivars on Soils with Hardened Layers, Alto Valle of the Rio Negro, Southern Wine-Growing Region of Argentina author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Agricultura Técnica

Print version ISSN 0365-2807


INOSTROZA, Luis; DEL POZO, Alejandro; MATUS, Iván  and  HAYES, Patrick. Drought Tolerance in Recombinant Chromosome Substitution Lines (RCSLs) Derived from the Cross Hordeum vulgare subsp. spontaneum (Caesarea 26-24) × Hordeum. vulgare subsp. vulgare cv. Harrington. Agric. Téc. [online]. 2007, vol.67, n.3, pp.253-261. ISSN 0365-2807.

Grain yield (GY) and drought tolerance of recombinant chromosome substitution lines (RCSLs) derived from the cross between Hordeum vulgareL.subsp. spontaneum (K. Koch) Thell. and H. vulgare L. subsp. vulgare cv. Harrington, were studied in two contrasting environments, one with water stress (WWS)  and the other with no water stress (NWS), during three growing seasons, 2004-2005, 2005-2006 and 2006-2007. In the first season 80 RCSLs were sowed and in the following a selection of 13 RCSLs. An a-lattice design was used in all the experiments. With the data of GY obtained in sites WWS and NWS it was calculated the drought sensitivity index (DSI). During 2004-2005 growing season GY varied greatly among locations, reflecting differences in water availability. The average GY of the 80 RCSLs was 4.4 and 8.0 Mg ha-1 in sites WWS and NWS, respectively. The DSI varied between genotypes from 0.24 to 1.53. Furthermore, the DSI was negative and significantly correlated with the grain yield obtained in the WWS site and allowed to select a group of genotypes tolerant and other sensitive to drought. The group of drought tolerant genotypes yielded in WWS 18, 12 and 17% more than the sensitive ones, in 2004-2005, 2005-2006 and 2006-2007 seasons, respectively

Keywords : barley; drought sensitivity index; grain yield water stress; genotype.

        · abstract in Spanish     · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License