Abstract
This is research of biological features of the growth and development rhythm of 11 Hosta species in the conditions of forest-steppe zone of Western Siberia. A comparative analysis of the organogenesis of the species H. decorata, H. sieboldiana, and H. lancifolia is carried out. The seed productivity and viability of pollen of 9 species were established. It is provided the description of upper and lower epidermis, cross section of leaf. It is revealed that the structure of lamina is characterized by xeromesophytic characters. It is mentioned species specificity in arrangement of adaxial and abaxial stomas pursuant thereto leaves of two types of Hosta are amphistomatic and hypostomatic. It is concluded that on the lower epidermis of the leaf, the transpiration capacity is 3 – 8 times greater.
Highlights
IntroductionRepresentatives of the genus Hosta Tratt. (hosta, funkia), Hostaceae B
Representatives of the genus Hosta Tratt., Hostaceae B
The beginning of host regrowth in the forest-steppe zone of Western Siberia is observed on May 15 – 30, when the average daily temperature passes through + 150C and the soil warms up to + 100C
Summary
Representatives of the genus Hosta Tratt. (hosta, funkia), Hostaceae B. Mathew are perennial polycarpic herbaceous rhizomatous plants of the East Asian flora. They are cultivated in botanic gardens worldwide from of old. It is known that culture conditions exert impact on changes of adaptive characters of plants. The life form is the most plastic vegetative organ and in its structure reflects the ecological adaptation forming under the influence of species habitat conditions [1]. The aim is a comparative study of organogenesis, reproductive ability and of leaf anatomic structure of eleven species of the Hosta genus in the conditions of the forest-steppe zone of Western Siberia
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