Reproductive fitness of five Pratylenchus thornei populations from Isparta Province in Turkey on sterile carrot discs, wheat and barley cultivars

Abstract

In the study, five populations of Pratylenchus thornei which obtained from different locations in Isparta Province inTurkey were investigated for their reproductive fitness on carrot discs and wheat varieties of Ikizce and Altay andbarley varieties of Tarm92 and Burakbey. Reproductive fitness evaluated as the ratio of the final number of nematodesto the number of nematodes inoculated. There was a significant difference in reproductive fitness among the five P.thornei populations on carrot discs. The highest reproductive fitness on carrot discs was obtained with the P. thorneipopulations of SK11 and SK24 whereas pathogenicity of these populations was differentiated among wheat andbarley varieties. The highest reproductive fitness was found at SK11 population with all wheat and barley varieties.GD18 and ISP10 populations developed better in barley than in wheat varieties. This study showed that there mightbe differences in reproduction of populations of the same nematode species isolated from different geographicalareas.