African Journal of Agricultural Research

Fusarium wilt, caused by Fusarium oxysporum F. sp. phaseoli caused growers to abandon the most popular climbing bean cultivar, Umubano (G2333) in Rwanda. The present objective was to determine the nature of inheritance of fusarium wilt resistance and recommend a breeding strategy to introduce resistance into susceptible cultivars. Two cultivars, vuninkingi (G685) and flora were donors of resistance to fusarium wilt whereas G2333 was highly susceptible. Injured root tips of 10-day old seedlings of the\n parents, progenies of F1 and F2 (G2333 × G685) and (G2333 × Flora), backcrosses F2 (G685 × Flora) were inoculated with 106 conidia ml-1 of Rwandan isolate of F. oxysporum F. sp phaseoli (FOP-RW2) in a…