On June 30, at a meeting of the Dissertation Council ED 1.26, operating under the Institute of Botany, MSERA, Ulkar Mahmud gizi Mammadova defended her dissertation for the degree of Doctor of Philosophy in biology in the specialty 2417.01-Botany on the topic "Bioecological characteristics, reserves and phytochemical study of some species of the Valerianaceae Batsch. family, common in the flora of the Nakhchivan Autonomous Republic."