Selection of New Lentil Lines Resistant to Wilt Disease Caused by Fusarium oxysporum f.sp. lentis , for Bilehsavar Region, Moghan

Lentil (Lens culinaris Medik.) is an important widely caltivated food legume crop in Bilehsavar, Moghan, northwest of Iran. Wilt disease caused by Fusarium oxysporum f. sp. lentis (Vasd. and Srin.) Gordon, has been appeared severely in this region during recent years and caused sharp failing in yield and cultivation areas of lentil. To find resistant cultivars suitable for the region, responses of 32 lentil promising lines were evaluated for four years in glasshouse and field conditions. In the glasshouse, plants were artificially inoculated by immersing root tips in spore suspension, and also by sowing seeds in infected soil in pots. Field experiments were carried out in a highly naturally infected farm. In all experiments responces of plants were recorded based on the percentage of dead plants. Cluster analysis of the glasshouse and first year field data led to selection of lines that were resistant in these experiments and also in two following years experiments in field conditions. In the fourth year, the selected resistant lines were evaluated for some important agronomic traits in the same farm. Based on the results of four years, lines ILL6037 and ILL7531 were selected as the most resistant and suitable lines for the region