Valuable medicinal and nutritional properties contributed to the initiation of the adaptation study, testing selection aiming at the subsequent introduction into the crop of Nigella sativa and Nigella damascena species for their implementation. The researches carried out and the results obtained allowed us to choose two forms of Nigella sativa and Nigella damascena, which in the climatic conditions of our republic, to a great extent achieved a high potential productivity which constituted 80.6 - 86.6 %. Average productivity over three years reached values of 446.5- 594.6gr / m2, which is much higher than the biological potential for productivity, obtained in other regions.