Ecosystem Transformation (), 42-51

The growth and development of some members of the genus Hosta Tratt.

Voronina О.Е., Kabanov А.V., Mamaeva N.А., Khokhlacheva J.А.  

This paper presents the results of a study of the adaptive potential of Hosta undulata (control) and its two forms, H. undulata var. univittata and H. undulata var. albomarginata, growing on open ground. It was shown that, despite having the maximum values of total leaf area and photosynthetic pigment content during almost the entire growing season, H. undulata var. albomarginata did not show high growth rates. A distinctive feature of H. undulata var. univittata had a maximum accumulation of pigments in the II period, mainly due to a noticeable increase in the diameter of the bush. Stable indicators were recorded in H. undulata during the observation period. The results of measuring growth processes, as well as the absence of viable seed progeny in all the studied samples, allowed us to make an assumption about their dependence on the meteorological conditions of the growing area. Stable growth rates and content of photosynthetic pigments in H. undulata var. univittata throughout the growing season indicate the high adaptive potential of this variety of hosta, and allow us to recommend it for mass urban landscaping.

О. Е. Voronina
Tsitsin Main Botanical Garden, Russian Academy of Sciences
ul. Botanicheskaya 4, Moscow, 127276 Russia

Cand. Sci. (Agricultural Sciences), researcher

А. V. Kabanov
Tsitsin Main Botanical Garden, Russian Academy of Sciences
ul. Botanicheskaya 4, Moscow, 127276 Russia

Cand. Sci. (Biological Sciences), senior researcher

N. А. Mamaeva
Tsitsin Main Botanical Garden, Russian Academy of Sciences
ul. Botanicheskaya 4, Moscow, 127276 Russia

Cand. Sci. (Biological Sciences), senior researcher

J. А. Khokhlacheva
Tsitsin Main Botanical Garden, Russian Academy of Sciences
ul. Botanicheskaya 4, Moscow, 127276 Russia

Cand. Sci. (Agricultural Sciences), senior researcher
ldr_gbsran@mail.ru

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