Biotechnology and Sustainable Agriculture 2006 and Beyond is a collection of papers presented at the XIth international congress of the International Association of Plant Tissue Culture & Biotechnology (IAPTC&B). It continues the long tradition of the IAPTC&B to publish the proceedings of its quadrennial congresses. It provides an up-to-date report of the most significant advances in plant tissue culture and biotechnology as presented by leading international scientists.