Original work by Ferdinando Pucci
I have done a complete rewrite of this article to make it more focussed, specifically on the methods of crop improvement. Material that relates to genetic engineering techniques will be moved to pages specifically about those techniques, eg Agrobacterium mediated transformationand plant tissue culture, I will delete crop breeding and redirect it to plant improvement. --nixie 23:42, 11 Oct 2004 (UTC)