Assessment of the cropping cycle effects on black leaf streak severity and yield decline of plantain and plantain hybrids

摘要: Abstract Black leaf streak (BLS), an airborne fungal spot disease, caused by Mycosphaerella fijiensis Morelet, is a major constraint to plantain production. Owing limitations associated with the use of chemicals in Africa, development resistant cultivars seems be appropriate approach control disease. Resistance and yield performance three hybrids (TMP × 597–4, TMP 548–4 548–9) were evaluated compared maternal ‘Obino I'Ewai’ over two cropping cycles. The had significantly less damage than I'Ewai1 without fungicide treatment. BLS effects on more severe ratoon crop (RC, second cycle) plant (PC, first owing depletion soil nutrients. Plantain loss from was 33% PC 76% RC, as calculated difference between fungicide‐treated non‐treated plantain. Yield declin...