Grimmer, Heidi Renate.2019-11-282019-11-281993https://hdl.handle.net/10539/28620A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy.PoIyphenoIs, suspected of being mutagenfc, were extracted from sorghum cultivars SNK3144,. NK222, NK300, PNR8311, SSK30, SSK52 and Barnard Red with 80% (v/v) aqueous acetone. (Abbreviation abstract)enPolyphenols.Antimutagens.Sorghum -- Genetics.Thesis