Abstract:
The researches were conducted during period 2005-2007 in Suceava
Plateau at Agricultural Research and Development Station of Suceava on a
soil of Cernisoils class, on faeoziom cambic type and subtype and in the
mountains area of Suceava County at Agricultural Research Center of
Pojorâta on lithic alluvial soil. In both locations it was taken in the study, a
total of 24 varieties of potato, 23 Romanian and one Dutch. It was pursued
the production potential of genotypes, number of tubers and the percentage
of tubers on size categories, resistance to diseases and the growing season.
Following the results obtained, it was found that in the environmental
conditions of the Suceava Plateau the varieties Astral, Claudiu (semi earlier
group), Loial, Sante, Speranta, Nicoleta and Robusta (semi later group)
achieved the highest yields of tubers, ranging from 34, 6 t/ha and 38.2 t/ha,
production increases from the average taken as control varieties being
distinct and very significant amplitude between 3.6 t/ha and 5.3 t/ha.
In the environmental conditions of Bucovina Obcine, the largest
production of tuber have made Astral, Claudiu. Loial, Robusta and
Dragomirna, between 32.3 t/ha and 36.4 t/ha, the production increases in
comparison with average of varieties yields being very significant
