Evaluation of faba bean (viciaaha l.)‎ Cultivars for resistance to macrophomina phaseolina under greenhouse conditions

Abstract EN

M phaseolina was isolated on potato dextrose agar from dark brown to black lesion on feeder and secondary roots of faba bean plants grown in the experimental station of King Saud University at Drab in Riyadh region in 1999.

Drab isolate was used in a greenhouse study to evaluate of resistance and susceptibility of seven faba bean cultivars to M phaseIonia .as well as measurements of plant growth characteristics and yield.

Results from this study showed that Giza blank was resistant cultivar, Giza 957 susceptible cultivar, and other tested cultivars rated as moderately resistance (Giza 3,Giza 461, Giza 643, Giza 761, and Giza 843) to M phaseolina.

Significant differences were also found in plant height, branches, shoot and root weight and yield between all inoculated and uninoculated faba bean cultivars.

Giza blank inoculated with M phaselonia was recorded a higher weight of seed and pods with the average of 25.54 and 43.45 g) than inoculated plants of Giza 957 with the average of 5.40 and 14.85 (g).

This is the first report of M phaselonia on Faba bean in Riyadh region.