With the purpose to know the behavior of yield and it's components seven potato varieties were evaluated with low resources in mountain conditions of Cuba. A plain terrace with 677 m² on red Fersialitic soil and altitude of 900 meter above sea level was used. The area of the plots was 14 m² distributed in random blocks with four repetitions. The 'Chieftain ', 'Mondial' and 'Picasso' varieties showed yields of 15.44; 15.25 and 14.78 t/ha, respectively. Also a positive and significant relation of yield with the number and weigth of comercial tubers per plant was found with a determination coeffiecient (r²) of 92.4%.