Evaluation of Eight Bean Cultivars for Resistance to Root-Knot Nematode (Meloidogyne javanica)

This study was conducted to evaluate the response of eight Iranian bean cultivars, Derakhshan, Akhtar, Azna, Naz, Jamaran, Goli, Sayad and Khomein, to root-knot nematode, M. javanica, in the glasshouse condition. A factorial experiment was performed using two factors, bean cultivars and nematode inoculation, in a completely randomized design with four replications. Each pot was filled with pasteurized soil and seven days old bean seedlings were inoculated with 2000 second stage larvae of M. javanica. Plant growth and nematode reproductive factors were measured eight weeks after inoculation. Bean cultivars showed different levels of susceptibility to the nematode. Regarding to growth-related factors, the cultivars Sayad, Azna and Akhtar were significantly less influenced by nematode attack than other cultivars. In case of nematode-reproduction parameters, Khomein, Jamaran and Derakhshan cultivars showed less susceptibility.