GM cassava up to 2,6 times the size of ordinary ones have been celebrated recently in the Journal on Plant Biotechnology. Conventionally bred cassava up to 10 times the original size were not even mentioned in a footnote.</p><p><a href="http://www.blackwell-synergy.com/doi/abs/10.1111/j.1467-7652.2006.00195.x">Plant Biotechnology Journal: Genetic modification of cassava for enhanced starch production</a></p><p><a href="http://www.scidev.net/editorletters/index.cfm?fuseaction=readeditorletter&itemid=93&language=1">Science and development network: Boosting cassava roots the non-GM way</a>