BIOCHEMICAL CHARACTERISTICS AND MINERAL COMPOSITION OF IRIS x HYBRIDA HORT. GROWN IN CONTRASTING CLIMATIC ZONES

Nadezhda Alexandrovna Golubkina; Larisa Vsevolodovna Startseva; Irina Vladimirovna Ulanovskaya; Alexandra Leonidovna Sheynina; Andrey Alexandrovich Koshevarov; Anna Vladimirovna Molchanova; Gennady Dmitrievich Levko; Gianluca Caruso

doi:10.36305/0513-1634-2020-135-57-65

BIOCHEMICAL CHARACTERISTICS AND MINERAL COMPOSITION OF IRIS x HYBRIDA HORT. GROWN IN CONTRASTING CLIMATIC ZONES

Nadezhda Alexandrovna Golubkina, Larisa Vsevolodovna Startseva, Irina Vladimirovna Ulanovskaya, Alexandra Leonidovna Sheynina, Andrey Alexandrovich Koshevarov, Anna Vladimirovna Molchanova, Gennady Dmitrievich Levko, Gianluca Caruso

https://doi.org/10.36305/0513-1634-2020-135-57-65

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Аннотация

Climate and geochemical environment are known to affect greatly mineral composition and antioxidant activity of plants. Comparative evaluation of antioxidant activity and antioxidants and trace elements content in garden irises grown in two contrasting climatic zones (the Moscow region and the Nikitsky Botanical Gardens) was achieved. Despite close content of phenolics in roots, leaves and petals, petals antioxidant activity (AOA) was significantly higher in the Crimean cultivars. Contrary to garden irises Iris pseudacorus demonstrated significantly higher AOA in roots. Element composition of iris roots indicated strong mineral loading at the seacoast with the highest intervarietal differences in accumulation levels of Fe in irises of the Nikitsky Botanical Gardens (CV 49.3%) and Zn in plants of the Moscow region (CV 44.1%). A negative correlation was revealed between AOA of roots, leaves, petals of the Northern irises with copper content in roots and between leaves phenolics and Zn of the Southern irises.