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Screening of barley landraces by direct selection for crop improvement

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Barley (Hordeum vulgare L.) landraces display a high degree of variability in morphological and developmental traits, in disease resistance, and in protein content. Representatives of 29 barley landraces from southeast Turkey were collected from farmers' fields, for a total of 800 accessions. The objectives of this study were to characterize these accessions over four years for morphological and agronomical traits to be used for future selection and breeding program. The observed variation between landraces was very large for all traits. In the first year of testing the accessions showed average grain yields ranging from 197-2225 kg ha-1. After three years of selection, promising accessions were tested at two different geographical regions and using two different irrigation methods. One line was identified which significantly out-yielded the local landrace in all of the testing years and had a higher average yield than the check genotypes.
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Keywords: Earliness; Hordeum vulgare; Turkish landrace; genetic diversity; selection

Document Type: Research Article

Affiliations: Faculty of Agriculture, Field Crops Department, University of Dicle, Diyarbakir, Turkey

Publication date: 2009-01-01

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