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dc.contributor.advisor Shimelis, H.A. Ramalema, Seganka Piet
dc.contributor.other Ncube, I. 2013-02-21T06:10:24Z 2013-02-21T06:10:24Z 2007
dc.description Thesis (M.Sc. (Crop science)) --University of Limpopo, 2007 en_US
dc.description.abstract Vernonia (Vernonia galamensis) is a new potential industrial oilseed crop. The seeds of this crop contain unusual naturally epoxidised fatty acids which are used in the production of various industrial products. The objective of this study was to evaluate the genetic diversity of selected vernonia lines in Limpopo Province through morphological, seed oil content and RAPD DNA markers. Significant differences were observed for days to 50 % flowering (93 - 140 days), plant height (141.80 - 166.33 cm), number of productive primary heads (29 - 60 head/plant), number of productive secondary heads (12 - 30 head/plant), thousand seed weight (1.85 - 3.52 g) and seed yield (454.44 - 786.85 kg/ha) between lines. Further results from oil analysis showed differences in the contents of seed oil (22.4 - 29.05%), vernolic acid (73.09 - 76.83%), linoleic acid (13.02 - 14.05%), oleic acid (3.77 - 5.28%), palmitic acid (2.48 - 2.98%) and stearic acid (2.26 - 2.75%). Among 13 RAPD DNA primers screened, primer OPA10 amplified DNA samples and resulted in four distinct groupings among tested lines. Four promising lines were selected viz. Vge-16, Vge-20, Vge-27 and Vge-32 displaying greater seed yield, increased vernolic acid content and reduced number of days to 50 % flowering. en_US
dc.description.sponsorship National Research Foundataion en_US
dc.format.extent X, 89 leaves en_US
dc.language.iso en en_US
dc.relation.requires pdf en_US
dc.subject Morphological diversity en_US
dc.subject Genetic diversity en_US
dc.subject Vernonia galamensis en_US
dc.subject.ddc 583.99 en_US
dc.subject.lcsh Compositae en_US
dc.subject.lcsh Vernonia en_US
dc.title Morphological and genetic diversity analysis in selected vernonia lines en_US
dc.type Thesis en_US

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