EVALUATION OF TUBER YIELD AND CULINARY QUALITY FOR TRUE POTATO SEED GENOTYPES GROWN UNDER DROUGHT STRESS FIELD CONDITIONS

The main objective of this study was to evaluate under field conditions potato genotypes derived from true seeds, that showed tolerance to in vitro induced water stress. The biological material was represented by 3 genotypes: GIL19-03-07, ZIL19-02-43 and GIL19-03-29, for which tuber number, yield and culinary quality were determined. The genotype GIL19-03-07 obtained the best results in terms of total number of tubers (647.20 thousand/ha), surpassing the variety Cosiana (control). In a dry growing year, in terms of total tuber production, the results obtained point to the genotype ZIL19-02-43 which obtained a production of 27.19 t/ha, followed by the genotype GIL19-03-07 with a production of 21.21 t/ha. The results of the culinary and technological quality analyses suggest that genotypes GIL19-03-07 and ZIL19-02-43 are suitable as raw material for chips, while genotype GIL19-03-29 is suitable for salads and other culinary preparations due to its pleasant taste and pulp texture.