Biological Factors Affecting Seed Production in East African Highland Bananas

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationSustainable Agriculture for Rural Development, Ugandaen
cg.contributor.affiliationMakerere Universityen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationNamulonge Agricultural and Animal Production Research Institute, Ugandaen
cg.contributor.donorRockefeller Foundationen
cg.coverage.countryUganda
cg.coverage.iso3166-alpha2UG
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.identifier.doihttps://doi.org/10.1300/j411v16n01_05en
cg.issn1542-7528en
cg.issue1-2en
cg.journalJournal of Crop Improvementen
cg.reviewStatusPeer Reviewen
cg.volume16en
dc.contributor.authorSsebuliba, R.en
dc.contributor.authorMagambo, M.en
dc.contributor.authorTalengera, D.en
dc.contributor.authorMakumbi, Danen
dc.contributor.authorTenkouano, A.en
dc.contributor.authorRubaihayo, P.R.en
dc.contributor.authorPillay, M.en
dc.date.accessioned2018-03-23T06:48:45Zen
dc.date.available2018-03-23T06:48:45Zen
dc.identifier.urihttps://hdl.handle.net/10568/91781
dc.titleBiological Factors Affecting Seed Production in East African Highland Bananasen
dcterms.abstractSeed production from hybridizations involving the East African Highland bananas (Mum spp., AAA group) is low due to high levels of sterility. This is a major impediment for the development of hybrids with disease and pest resistance and superior agronomic traits. The objective of this study was to examine the effect of inflorescence and stigma developmental stages on seed production in East African Highland bananas. Five female-fertile cultivars were pollinated daily with Musa acuminata spp. burmannicoides ‘Calcutta 4’ as the male parent. The level of female bract opening, distribution of the stigma development stages, and seed production per hand of a bunch were recorded. Means and standard deviations were computed for the ratings given to levels of bract opening. AChi-square test was used to determine whether hand position affects the distribution of stigma classes. Correlation coefficients were calculated to determine the relationship of seed set to stigma development stages. At the time of pollination it was observed that the bracts of the upper hands were narrowly open, the bracts on the lower hands widely open and those in the middle hands were intermediate between the two extremes. Stigma development stages I and II were common in the upper hands, III in the middle hands, while lower hands were in stage IV. More seeds were obtained from the middle than from the upper and lower hands in a bunch. Stage III stigmas were highly receptive, stages I and II were not yet receptive while stage IV stigmas had lost receptivity. Pollinating hands with stage III stigmas could improve seed production in the East African Highland bananas.en
dcterms.accessRightsLimited Access
dcterms.available2008-09-21
dcterms.bibliographicCitationSsebuliba, R., Magambo, M., Talengera, D., Makumbi, D., Tenkouano, A., Rubaihayo, P. & Pillay, M. (2006). Biological Factors Affecting Seed Production in East African Highland Bananas. Journal of Crop Improvement 16(1-2): 67-79. https://doi.org/10.1300/J411v16n01_05en
dcterms.extentpp. 67-79en
dcterms.issued2006-07-20
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherInforma UK Limiteden
dcterms.subjecteast african highland bananaen
dcterms.subjectfertilityen
dcterms.subjectseed productionen
dcterms.subjectstigma receptivityen
dcterms.subjectgeneticsen
dcterms.typeJournal Article

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