Abstract
Ushbu maqolada O‘zbekiston Milliy Universiteti Botanika bog‘i iqlim sharoitida o‘rganilayotgan Paeonia L. turkumiga mansub Paeonia lactiflora turining 3 ta – Sara Bernard, Anjelika va Avalanj navlarining kunlik transpiratsiya jadalligining maksimum va minimum ko‘rsatkichlari, mavsumiy o‘zgarishlari, transpiratsiya jadalligi bo‘yicha navlar o‘rtasidagi farqlar hamda mavsumiy amplitudasini o‘rganishdan olingan natijalar keltirilgan. Tadqiqotda bahor va yoz mavsumida Avalanj navining Sara Bernard va Anjelika navlariga nisbatan kunlik o‘rtacha transpiratsiya jadalligi yuqori ekanligi, barcha turlarning bahor mavsumidagi transpiratsiya ko‘rsatkichlari yoz mavsumiga qaraganda yuqori bo‘lishi hamda Avalanj navi eng yuqori mavsumiy amplitudaga ega ekanligi aniqlandi
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