Kirsten, Johann F.2013-09-062005-06-022013-09-062004-02-172006-06-022005-06-02a 2004 H34/thhttp://hdl.handle.net/2263/25189Dissertation (MSc (Agric))--University of Pretoria, 2006.Please read the abstract in the section, 00front, of this documenten© University of Pretoria 2004 H 34/UCTDTransgenetic plants economic aspects South AfricaDissertationhttp://upetd.up.ac.za/thesis/available/etd-06022005-131602/