Fusarium oxysporum Race 1 resistance and quality traits variations in apple banana germplasm
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Plant Breeding and Crop Science
Abstract
Musa species, AAB genome group, commonly known as Sukali Ndizi (SND) in Uganda, has attained a
substantial commercial value in the recent past owing to its superior fruit quality attributes and better
prices. However, its sustainable production and productivity are highly threatened by Fusarium wilt. To
facilitate large scale area expansion of this important dessert banana, the present study was carried out
to identify the near-ideotypic lines of best quality fruit traits that are also resistant to Fusarium wilt.
Nineteen SND ecotypes were subsequently collected from nine key SND growing districts of Uganda
and evaluated in the field and laboratory for different fruit quality attributes and response to Fusarium
wilt. Results showed a wide diversity among SND ecotypes for fruit-quality traits (fruit pulp texture,
flavor and taste). The ecotypes were, however, not significantly different (p > 0.05) for susceptibility to
FOC race 1. Cluster analysis based on organoleptic and physio-chemical properties grouped the 19
ecotypes into two major-clusters, each of which was also split into two sub-clusters. Individual subclusters
summarize levels of similarity amongst the different ecotypes. The study confirmed the
presence of diversity in SND germplasm that could be exploited for SND genetic improvement of the
crop through hybridization and selection.
Description
Keywords
Sukali Ndizi, Fruit-quality traits, Fusarium wilt, Ecotypes, Desert banana, Diversity
Citation
Buregyeya, H., Tumuhimbise, R., Matovu, M., Tumwesigye, K. S., Kubiriba, J., Nowankunda, K., ... & Rubaihayo, P. (2020). Fusarium oxysporum Race 1 resistance and quality traits variations in apple banana germplasm. Journal of Plant Breeding and Crop Science, 12(1), 16-24. DOI: 10.5897/JPBCS2019.0815