GENETIC RESPONSE OF SOME POTATO VARIETIES AGAINST BLACKLEG DISEASE

Fifteen potato cultivars were evaluated during year 2007 and in 2008 for resistance against Erwinia sp. associated with blackleg of potato out of which one variety Cardinal was found immune while Faisalabad white was found highly susceptible. The varieties like Faisalabad Red, Hermes and Orla resistant, Lady Rosette, Ascent and Harmony were susceptible while Paramount, Melody, Atlantic and Fontane were found moderately resistant and three other varieties, Desiree, SH-70 and Vales Everest, were found moderately susceptible.