Response of common bean (Phaseolus vulgaris) to Italian populations of four species of Meloidogyne

Abstract

The reactions of lines and cultivars of common bean (Phaseolus vulgaris) to Italian populations of races 1 and 2 of Meloidogyne incognita, M. javanica, race 2 of M. arenaria and M. hapla were evaluated in a glasshouse. Groups of ten pregerminated seeds of each line or cultivar of common bean were sown in trays of 12 dm3 filled with a steam sterilized sandy soil artificially infested with 10,000 eggs and juveniles of each nematode population per plant. The lines Alabama #1 and PI 165426 were resistant to all populations of Meloidogyne spp. tested. The line A 445 was resistant to M. incognita race 2 and M. javanica, and segregated for resistance to M. incognita race 1. The inbreed line ISCI 197/151-5 was resistant to M. incognita race 1, M. arenaria race 2 and M. hapla. The remaining lines and cultivars were susceptible to all four species of root-knot nematodes.