Abstract:
Ceratocystis manginecans has been reported to cause a serious wilt disease of
mango in Oman and Pakistan. To identify plants resistant to this disease, 30 mango
cultivars were artificially inoculated with isolates of C. manginecans in three trials.
Statistical analysis revealed significant differences (P < 0.0001) in lesion lengths among
mango cultivars. Similarly, there were significant differences in the aggressiveness of
the isolates used for inoculations. However, in trials where more than one isolate was
used, there was no significant isolate x cultivar interaction suggesting that isolates do
not affect the ranking of cultivars as susceptible or resistant. Cultivar ‘Pairi’ and local
mango cultivars had the longest lesions and were ranked as highly susceptible. In
contrast, cultivars ‘Hindi Besennara’, ‘Sherokerzam’, ‘Mulgoa’, ‘Baneshan’, ‘Rose’
and ‘Alumpur Baneshan’, had the smallest lesions and are considered as relatively
resistant against C. manginecans. The inoculation results are concurrent with the
incidence of wilt of these cultivars under field conditions.
