Shimelis, Hussein.Olaolorun, Boluwatife Modupeoluwa.2021-06-182021-06-1820202020https://researchspace.ukzn.ac.za/handle/10413/19492Doctoral Degree. University of KwaZulu-Natal, Pietermaritzburg.Abstract available in PDF.enEthyl methanesulphonate.Genetic variation.Lethal dose.Root-to-shoot ratio.Mutant family generation.Breeding wheat (triticum aestivum L.) for drought tolerance, improved yield and biomass allocation through chemical mutagenesis.Thesis