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Genetic control of dry matter, starch and sugar content in sweetpotato

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Title Genetic control of dry matter, starch and sugar content in sweetpotato
 
Creator Baafi, E.
Gracen, V.E.
Manu-Aduening, J.A.
Blay, E.T.
Ofori, K.
Carey, E.E.
 
Subject sweet potatoes
starch
dry matter
additive effect
breeding
genetic variation
heterosis
 
Description Sweetpotato (Ipomoea batatas L. (Lam)) is a nutritious food security crop for most tropical households, but its utilisation is very low in Ghana compared to the other root and tuber crops due to lack of end-user-preferred cultivars. Knowledge on the genetic control of important traits such as dry matter, starch and sugar content of sweetpotato storage roots in a breeding population is critical for making breeding progress in developing sweetpotato varieties preferred by farmers and consumers. This study used diallel mating design to elucidate general combining ability and specific combining ability, to determine the gene action controlling storage root dry matter, starch and sugar content in sweetpotato and the heterotic potential of the traits to facilitate the crop’s improvement for increased utilisation. A general model for estimating genetic effects, GEAN II, was used to analyse the data. Genetic variability was seen for dry matter, starch and sugar content of sweetpotato and much of this genetic variation was additive in nature. The study also revealed significant heterosis in sweetpotato which offers opportunity for breeding non-sweet, high dry matter sweetpotato varieties that are preferred by farmers and consumers in Ghana.
 
Date 2017-02-17
2018-04-03T19:11:19Z
2018-04-03T19:11:19Z
 
Type Journal Article
 
Identifier Baafi, E.; Gracen, V.E.; Manu-Aduening, J.; Blay, E.T.; Ofori, K.; Carey, E.E. 2017. Genetic control of dry matter, starch and sugar content in sweetpotato. Acta Agriculturae Scandinavica, Section B: Soil and Plant Science. (Norway). ISSN 0906-4710. 67(2):110-118.
0906-4710
https://hdl.handle.net/10568/92011
https://doi.org/10.1080/09064710.2016.1225813
 
Language en
 
Rights Limited Access
 
Format 110-118
 
Publisher Informa UK Limited
 
Source Acta Agriculturae Scandinavica, Section B - Soil and Plant Science