RĂ­os Labrada, Humberto2009-04-062009-04-062005http://hdl.handle.net/10625/37820Text1 digital file (51 p. : ill.)enFOOD CROPSGENETIC RESOURCESGENETIC IMPROVEMENTPLANT BREEDINGSEEDSFARMERSCUBAParticipatory seed diffusion : experiences from the fieldWorking Paper