Морфобиохимические особенности интродуцированных видов Hemerocallis в лесостепи Новосибирской области

Abstract

In the conditions of the forest-steppe zone of Western Siberia in the Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences, the morphobiochemical features of five species of the genus Hemerocallis were studied: H. lilio-asphodelus – Yellow Daylily, H. minor – L. Malyi, H. middendorffii – L. Middendorf, H. citrina – L. lemon yellow, H. fulva – L. brown-yellow. The paper presents comparative data for 2020-2021. The rhythm of growth and development of spring-early summer flowering species is presented: H. lilio-asphodelus, H. minor, H. middendorffii, H. citrina and summer flowering species H. fulva. Individual morphometric parameters of the height of the generative shoot, the size of the flower, their number in the inflorescence and the number of formed generative shoots over two growing periods are described. Comparative results on the content of ash, ascorbic acid, tannins in leaves, flowers and rhizomes of five species are analyzed. In flowers, the greatest accumulation of ash substances was observed in H. middendorfii (8.3–9.4 %), ascorbic acid in H. citrina (18.1–19.7 mg%). The concentration of ascorbic acid in the leaves of plants of the studied species was high and varied from 15.2 to 17.9 mg%. The ash content in the leaves ranged from 7.1 to 10.4 %, with the highest content in H. lilioasphodelus and H. middendorfii. It was found that the concentration of tannins in the leaves of all species was higher in 2021: 1.1 times in H. lilio-asphodelus; 1.3 times in H. fulva; 1.5 times in H. citrine; 2.1 times in H. minor. In H. middendorfii this indicator was relatively stable (2.3– 2.4 %).The species specificity of morphobiochemical features of introduced species in the south of the Novosibirsk region with aligned and stable adaptive potential is noted, which makes it possible to use them in the landscaping of this region.