Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 1
Written by Florența-Elena HELEPCIUC, Leonard-Alexandru DUMITRU, Alina Gabriela TURCU, Alexandra Gabriela CIOCAN, Daniel CRISTINA, Matilda CIUCĂ, Elena PETCU, Cătălin LAZĂR, Elena Monica MITOI
Drought induces morphological changes in plants, and among these, certain characteristics can be identified as markers of drought tolerance or resistance. The identification of drought resistance morphostructural markers can facilitate the selection of tolerant genotypes with increased productivity. Our aim was to establish a reliable and reproducible set of drought adaptation markers for Izvor and F628 wheat varieties and their DH lines, A1-3, A1-20, A1-65, A1-66, A1- 72, A2-92, A2-255 and B1-16 under field conditions. For this purpose, different leaf morphoanatomical parameters were compared with field productivity parameters. Although other studies associate these characteristics with drought tolerance, in our research most of the studied flag leaf morphological and anatomical traits were not correlated with main spike productivity or the Drought Tolerance Index (DTI). Stomatal density was the only characteristic that showed a significant correlation with the DTI, thus being considered a reliable marker for drought tolerant genotypes with increased productivity.
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