@INBOOK {ORTIZ:2006, title = {Breeding vegetatively propagated crops}, author = {Ortiz, R. and Dochez, C. and Asiedu, R. and Moonan, F. }, year = {2006}, type = {Plant Breeding: the Arnell R. Hallauer International Symposium}, pages = {251--268}, publisher = {Blackwell Publishing}, address = {Ames, Iowa}, }