Genetic incompatibilities in sweetpotato and implications for breeding end-user preferred traits

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dc.creatorBaafi, E.
dc.creatorCarey, E.E.
dc.creatorBlay, E.T.
dc.creatorOfori, K.
dc.creatorGracen, V.E.
dc.creatorManu-Aduening, J.
dc.date2016-06
dc.date2024-05-15T18:31:43Z
dc.date2024-05-15T18:31:43Z
dc.date.accessioned2026-06-27T18:02:39Z
dc.descriptionSweetpotatoes utilization is low in Ghana due to lack of farmer and consumer preferred cultivars. Poor flowering and incompatibilities among genotypes limit breeding progress in its improvement. The objective was to assess compatibilities among sweetpotato genotypes to select good parents for breeding end-user preferred varieties for increased utilization. Twenty-one genotypes selected from 115 accessions evaluated across three contrasting environments were crossed using full diallel mating scheme. In all, 6388 crosses were carried out and 3214 seeds produced. This study sought to understand the genetic incompatibilities based on the number of seeds set per capsule after self- or cross-fertilization. Lack of flowering or poor flowering, and self- and cross-incompatibilities were major constraints to sweetpotato improvement found. Four genotypes (Histarch, Apomuden, Beauregard, and Ogyefo) were the best parents based on cross compatibilities and they can be used to determine the genetic control of beta-carotene, dry matter and sugar content in sweetpotato. Histarch and Ogyefo are recommended as parents for the development of non-sweet, high dry matter sweetpotato varieties that are the preferred cultivars in Ghana because of their low sugar content. Use of many genotypes in hybridization and establishment of crossing blocks in the minor cropping season is highly recommended.
dc.identifierhttps://hdl.handle.net/10568/141854
dc.identifier.urihttp://hdl.handle.net/123456789/153314
dc.languageen
dc.publisherSouthern Cross Publishing
dc.rightsOpen Access
dc.sourceBaafi, E.; Carey, E.E.; Blay, E.T.; Ofori, K.; Gracen, V.E.; Manu-Aduening, J. 2016. Genetic incompatibilities in sweetpotato and implications for breeding end-user preferred traits. Australian Journal of Crop Science. ISSN 1835-2707. 10(6), 887–894. https://doi.org/10.21475/ajcs.2016.10.06.p7618
dc.subjectgenetics
dc.subjectsweet potatoes
dc.subjectbreeding
dc.titleGenetic incompatibilities in sweetpotato and implications for breeding end-user preferred traits
dc.typeJournal Article

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