Naslov
Genetic advance in yield components, grain yield and grain quality of soybean OS-lines

Autori
Sudarić, Aleksandra ; Vratarić, Marija ; Sudar, Rezica ; Duvnjak, Tomislav

Izvornik
Sjemenarstvo (1330-0121) 21 (2004), 3-4; 115-125

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
soybean (Glycine max (L.) Merrill); grain yield; grain quality; yield components; genetic advance; heritability; genetic ain from selection; relative genetic gain
(soybean (Glycine max (L.) Merrill); grain yield; grain quality; yield components; genetic advance; heritability; genetic gain from selection; relative genetic gain)

Sažetak
Genetic improvement of soybean cultivars has had significant role in yield increasing as well as in development, improvement and stabilization of soybean production, respectively. The aim of this study was to evaluate genetic advance in yield components, grain yield and grain quality of soybean throughout analysis of agronomic values of new domestic elite breeding soybean lines in comparison with commercial cultivars. The reliability of the grain quantity traits as selection criteria in soybean breeding on grain yield were determined, too. The investigations were carried out at the Agricultural Institute Osijek from 2001 to 2003 and involved 31 domestic soybean genotypes ranging maturity groups I. Mean values, broad-sense heritability, genetic gain and relative genetic gain from selection were calculated for grain yield components, grain yield, protein and oil content in grain. The obtained results of quantitative genetic analysis indicated progress through breeding in grain quantity and quality traits that will contribute to further improving and increasing of soybean production in our region. Likewise, recent breeding materials represent good genetic basis for future hybridizations aimed at advancing of quantity and quality of grain yield in soybean genetically. Regarding to traits reliability as selection criteria, grain yield omponents are determined as more reliable criteria for selection of superior genotypes than grain yield per se due to higher heritability (61.87-82.31%) and better progress inselection (10.63-22.78%). Grain quality traits had medium heritability (60.04-65.89%) and better progress in selection (6.95-8.94%) compared to grain yield that had less heritability (29.87%) and relative genetic gain from selection was 0.43%.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA