Journal of
Plant Breeding and Crop Science

  • Abbreviation: J. Plant Breed. Crop Sci.
  • Language: English
  • ISSN: 2006-9758
  • DOI: 10.5897/JPBCS
  • Start Year: 2009
  • Published Articles: 386

Full Length Research Paper

Fusarium oxysporum Race 1 resistance and quality traits variations in apple banana germplasm

Henry Buregyeya
  • Henry Buregyeya
  • National Banana Research Program, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Robooni Tumuhimbise
  • Robooni Tumuhimbise
  • National Banana Research Program, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Moses Matovu
  • Moses Matovu
  • Food Bioscience and Agribusiness, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Kashub S. Tumwesigye
  • Kashub S. Tumwesigye
  • Food Bioscience and Agribusiness, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Jerome Kubiriba
  • Jerome Kubiriba
  • National Banana Research Program, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Kephas Nowankunda
  • Kephas Nowankunda
  • Food Bioscience and Agribusiness, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Wilberforce K. Tushemereirwe
  • Wilberforce K. Tushemereirwe
  • National Banana Research Program, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Deborah Karamura
  • Deborah Karamura
  • Bioversity International, P. O. Box 24384, Kampala, Uganda.
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Eldad Karamura
  • Eldad Karamura
  • Bioversity International, P. O. Box 24384, Kampala, Uganda.
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Robert M. Kityo
  • Robert M. Kityo
  • Department of Zoology, Entomology and Fisheries Sciences, College of Natural Sciences, School of BioSciences, Makerere University, P.O. Box 7062, Kampala, Uganda.
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Patrick Rubaihayo
  • Patrick Rubaihayo
  • Department of Agricultural Production, College of Agricultural and Environmental Sciences, Makerere University, P. O. Box 7062, Kampala, Uganda.
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  •  Received: 28 April 2019
  •  Accepted: 23 December 2019
  •  Published: 29 February 2020

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 sub-clusters 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.

Key words: Sukali Ndizi, fruit-quality traits, Fusarium wilt, ecotypes, desert banana, diversity.