Mycoflora associated with infected fruits of different varieties of Musa sapientum L. and their pathogenic potentiality

Abstract

A total of 11 fungal species were isolated from the 25 infected fruit samples
of three varieties (Sabri, Champa and Sagor) of Musa sapientum. The isolated
fungi were Aspergillus flavus Link, A. fumigatus Fresenius, A. niger van Tiegh.,
Colletotrichum musae (Berk. & Curt.) Arx, Curvularia brachyspora Boedijn.,
Fusarium semitectum Berk. & Rav. Fusarium sp. Link, Penicillium sp., Pestalotiopsis
disseminata (Thum) Steyaert, Rhizopus sp. Ehrenb. and Trichoderma viride Pers. ex
Gray. Fusarium semitectum showed the highest (28.61) per cent association
frequency in Sabri variety whereas Fusarium sp. showed the lowest (3.33).
Curvularia brachyspora showed the highest (21.11) per cent frequency in Champa
variety whereas A. fumigatus showed the lowest (2.78). Fusarium sp. showed the
highest (41.67) per cent frequency in Sagor variety whereas T. viride showed the
lowest (3.34). Among the isolated fungi C. musae, C. brachyspora, F. semitectum,
Fusarium sp. and P. disseminata were found to be pathogenic to three banana
varieties. The presence of Pestalotiopsis disseminata (Thum) Steyaert in Sabri
variety of banana is the first record in Bangladesh.