Original scientific paper

ESTIMATION OF PHENOTYPIC AND GENETIC CORRELATIONS FOR QUALITY TRAITS IN A WHEAT POPULATION

Dario Novoselović ; Agricultural Institute Osijek, Osijek, Croatia
Ruđer Šimek ; Agricultural Institute Osijek, Osijek, Croatia
Krešimir Dvojković ; Agricultural Institute Osijek, Osijek, Croatia
Georg Drezner ; Agricultural Institute Osijek, Osijek, Croatia

Abstract

The objective of this paper was to estimate phenotypic and genetic correlations in order to improve existing wheat quality breeding methodology in early generations. For this purpose, one-year trial with population of 143 recombinant inbred lines from crossing combination Bezostaja/Klara was carried out on Osijek and Slavonski Brod locations in 2008/09 year. Among analyzed traits (grain protein content, wet gluten content, gluten index, mid-line peak time -MPT, mid-line peak height -MPH and mid-line tail width -MTW) consistent positive phenotypic and genetic pattern of correlations was found between grain protein content and wet gluten content, negative between gluten index with grain protein content and wet gluten content, and positive between grain protein content and wet gluten content with MPT and MPH. Conformity of the phenotypic and genetic correlations was confirmed by Mantel test on both locations (for Osijek r=0.81** and for Slavonski Brod r=0.88**).

Keywords

wheat; quality; phenotypic correlations; genetic correlations; selection

Hrčak ID:

83368

URI

https://hrcak.srce.hr/83368

Publication date:

12.6.2012.

Article data in other languages: croatian

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