tailieunhanh - Effects of climatic factors on grain vitreousness stability and heritability in durum wheat
Modern durum wheat breeding programs are becoming more oriented toward creation of not only high-yield cultivars but also high quality, with good stability for the trait of interest. | Turkish Journal of Agriculture and Forestry Research Article Turk J Agric For (2014) 38: 429-440 © TÜBİTAK doi: Effects of climatic factors on grain vitreousness stability and heritability in durum wheat 1, 2 3 1 Gordana R. BRANKOVIĆ *, Dejan DODIG , Miroslav Z. ZORIĆ , Gordana G. ŠURLAN-MOMIROVIĆ , 2 4 Vesna DRAGIČEVIĆ , Nenad ĐURIĆ 1 Department of Genetics, Plant Breeding and Seed Science, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia 2 Maize Research Institute Zemun Polje, Belgrade, Serbia 3 Institute of Field and Vegetable Crops, Maize Department, Novi Sad, Serbia 4 Department for Cereal Crops, PKB Agroekonomik Institute, Belgrade, Serbia Received: Accepted: Published Online: Printed: Abstract: Modern durum wheat breeding programs are becoming more oriented toward creation of not only high-yield cultivars but also high quality, with good stability for the trait of interest. Vitreousness of grain is associated with semolina granulation, color, and protein content; it is regarded as one of the most important characteristics in the grading industry, affecting the commercial value of the commodity. A set of 15 winter and facultative durum wheat genotypes was tested for grain vitreousness across 6 environments for 2 consecutive years. Three-way analysis of variance showed that genotype, location, and year contributed , , and to the total sum of squares, respectively. Interaction terms, including genotype, contributed to the total sum of squares, and location × year contributed . Stability of grain vitreousness for the examined breeding lines and cultivars of durum wheat was shown by the site’s regression. Broad-sense heritability of grain vitreousness was estimated to be 71%. Climatic variables were used for factorial regression modeling, and most of the interaction term for grain vitreousness was explained
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