Correlations between grain yield and yield related traits in spring barley from European-Siberian origin

Margarita Gocheva, Darina Valcheva, Dragomir Valchev

Abstract: This study is undertaken to determine the relationship between yield and its component symbols in 26 spring barley varieties from European-Siberian origin by applying correlation and path coefficient analysis. The following traits are analyzed: number of productive tillers, plant height, spike length, number of grains, number of sterile spikelets, grain weight per spike, 1000 grain weight. It was found that there are medium to strong positive phenotypic correlations between grain yield and grain weight per spike (r=0.730), grain weight per plant (r=0.753) and 1000 grain weight (r=0.582). The grain weight per spike and number of productive tillers per m2 had the strongest direct effect on grain yield. The 1000 grain weight and number of grains have highest positive indirect effect on grain yield. These interrelationships must be taken into account in determining the selection criteria in spring barley.

Keywords: path coefficient analysis; phenotypic correlation; spring barley; yield

Date published: 2018-03-12