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: 325

Full Length Research Paper

Development of two high-yielding, consumer-acceptable apple banana hybrids (Musa species, AAB genome group) with resistance to Fusarium oxysporum f. sp. cubense race 1

Henry Buregyeya
  • Henry Buregyeya
  • National Banana Research Programme, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Robooni Tumuhimbise
  • Robooni Tumuhimbise
  • National Banana Research Programme, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Jerome Kubiriba
  • Jerome Kubiriba
  • National Banana Research Programme, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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David Talengera
  • David Talengera
  • National Banana Research Programme, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Kephas Nowankunda
  • Kephas Nowankunda
  • National Banana Research Programme, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Geofrey Arinaitwe
  • Geofrey Arinaitwe
  • National Banana Research Programme, National Agricultural Research Organization, P. O. Box 7065, Kampala, Uganda.
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Wilberforce K. Tushemereirwe
  • Wilberforce K. Tushemereirwe
  • National Banana Research Programme, 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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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: 09 January 2018
  •  Accepted: 05 March 2018
  •  Published: 30 June 2018

Abstract

Fusarium wilt of bananas (Musa species) is caused by Fusarium oxysporum f. sp. cubense (Foc). Foc race 1 in particular affects dessert bananas in Uganda, causing >60% yield loss. This study was conducted to assess the performance of two new apple banana genotypes for bunch yield, resistance to Foc race 1 and consumer acceptability. The new apple banana genotypes (NAMU1 and NAMU2), along with two check cultivars, one susceptible but preferred by consumers (Sukali ndiizi) and the other resistant (Yangambi-KM5), were evaluated at the National Agricultural Research Laboratories in Uganda. Bunch yields of the two new apple bananas were higher than those of check cultivars by >50%. NAMU1 and Yangambi-KM5 showed no symptoms of Foc race 1, whereas NAMU2 showed mild symptoms on its corms. Sukali ndiizi showed severe pseudostem splitting and corm discoloration as the key symptoms of Foc race 1. The consumer acceptability of NAMU1 and NAMU2 was as high as that of Sukali ndiizi, implying that they can be perfect substitutes for the Foc race 1 susceptible Sukali ndiizi.   
 
Key words: Dessert banana hybrids, host plant resistance, Panama disease, sensory attributes.