00789nam a2200145 a 450000100080000000500110000800800410001910000190006024500410007926000360012030000090015652004460016565000140061170000180062516398112014-01-23 1980 bl uuuu u0uu1 u #d1 aGOEDERT, C. O. aCassava germplasm program of Brazil. aBrasília: CENARGEM/CNPMFc1980 a15p. aBrazil is the center of origin and diversification of species of the genus Manihot, presenting valuable genetic variability, which encompasses primitive land-races, and improved cultivars of M. esculenta and many wild species. Cassava is cultivated hroughout Brazil, from 4. N. 33 S lat. Brazil holds the position of first world producer, presenting, in 1978, a total production of 26.000.000 tons, equivalent to 30% of the world production. agermplasm1 aSILVA, S.O.S.