Effects of climatic factors on grain vitreousness stability and heritability in durum wheat
Samo za registrovane korisnike
2014
Autori
Branković, GordanaŠurlan-Momirović, Gordana
Dodig, Dejan
Dragičević, Vesna
Zorić, Miroslav
Đurić, Nenad
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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 4.1%, 20.6%, and 42.2% to the total sum of squares, respectively. Interaction terms, including genotype, contributed 6.1% to the total sum of squares, and location x year contributed 27.0%. 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 by mean temperatures in June (54.4%) and April (14.2%), and precipitation (14.4%) and sunshine hours (14.3%) in March. During the grain filling and grain ripening stages, the most influential climatic variables in explaining interaction were maximum temperature (43.4%), precipitation (30.9%), and sunshine hours (5.6%).
Ključne reči:
Durum wheat / climatic factors / heritability / stability / vitreousnessIzvor:
Turkish Journal of Agriculture and Forestry, 2014, 38, 4, 429-440Izdavač:
- Tubitak Scientific & Technical Research Council Turkey, Ankara
Finansiranje / projekti:
- Izučavanje genetičke osnove poboljšanja prinosa i kvaliteta strnih žita u različitim ekološkim uslovima (RS-MESTD-Technological Development (TD or TR)-31092)
DOI: 10.3906/tar-1308-51
ISSN: 1300-011X