Postagrogenic development of Retisols in the middle taiga subzone of European Russia (Komi Republic)

2018 ◽  
Vol 29 (3) ◽  
pp. 495-505 ◽  
Author(s):  
Alexey A. Dymov ◽  
Yuriy A. Dubrovskiy ◽  
Viktor V. Startsev
Keyword(s):  
Komi Republic ◽  
European Russia ◽  
Middle Taiga ◽  
Middle Taiga Subzone

Soil Formation in the Quarries after Forest Reclamation in the Middle Taiga Subzone of the Northeast of European Russia

2021 ◽  
Vol 54 (4) ◽  
pp. 631-647
Author(s):  
I. A. Likhanova ◽  
E. G. Kuznetsova ◽  
E. M. Lapteva ◽  
S. V. Deneva ◽  
B. A. Makeev
Keyword(s):  
Soil Formation ◽  
European Russia ◽  
Middle Taiga ◽  
Middle Taiga Subzone ◽  
Forest Reclamation

scholarly journals Morphological features of the plant Pyrethrum majus (Desf.) Tzvel. and variability of the component composition of essential oil during introduction in the North-East of the European part of Russia

2020 ◽  
Vol 9 (4) ◽  
pp. 142-148
Author(s):  
Nadezhda Vasilyevna Portnyagina ◽  
Vasiliy Vitalyevich Punegov ◽  
Elmira Elizbarovna Echishvili ◽  
Marina Gennadyevna Fomina ◽  
Ivan Vladimirovich Gruzdev
Keyword(s):  
Essential Oil ◽  
Weather Conditions ◽  
Component Composition ◽  
Komi Republic ◽  
Middle Taiga ◽  
Aboveground Phytomass ◽  
Middle Taiga Subzone ◽  
North East ◽  
The North ◽  
European Part Of Russia

The paper presents the results of the research on the growth, development, and biochemical evaluation of introduced Pyrethrum majus plants in the middle taiga subzone of the Komi Republic. It is established that in the conditions of culture the species is characterized by a high stability and winter hardiness. The phenology and dynamics of plant growth were studied. Morphological parameters of vegetative and generative shoots were determined. The yield of essential oil from the aboveground phytomass of P. majus and its component composition were studied. It was found that the content of essential oil of flowering plants varied over the years of research from 0,25 to 1,41% and depended on the weather conditions of the growing season. More than 190 components were found in the essential oil of P. majus plants using the method of GLC analysis, 48 of them were identified. The main terpenoids in the essential oil were S-(+) carvone (5465%), -tuyon (610%), TRANS-and CIS-p-Menta-2,8-dienols (2,32,8%), 1,8-Cineol (1,42,9%), CIS Menta-1(7)8-Dien-2ol (1,52,1%), germacrene d (1,21,8%) -cadinol (0,51,5%), -muurolol (0,22,6%). It was found that the component composition of the essential oil from perennial plants P. majus corresponds to the carvone-Tuyon chemotype and did not change significantly due to the meteorological conditions of the environment. Taking into account a high adaptation of plants of this species to the conditions of the middle taiga subzone of the Komi Republic, high indicators of aboveground phytomass with a sufficient content of essential oil, P. majus can be successfully cultivated in the North as a promising spicy-aromatic medicinal and ornamental plant.

Micromycetes in podzolic and bog-podzolic soils in the middle taiga subzone of northeastern European Russia

2014 ◽  
Vol 47 (10) ◽  
pp. 1027-1032 ◽  
Author(s):  
F. M. Khabibullina ◽  
E. G. Kuznetsova ◽  
I. Z. Vaseneva
Keyword(s):  
European Russia ◽  
Middle Taiga ◽  
Podzolic Soils ◽  
Middle Taiga Subzone

scholarly journals Raw materials of Hypericum perforatum L. of different geographical origin in the conditions of introduction

2021 ◽  
pp. 117-124
Author(s):  
E. E. Echishvili ◽  
N. V. Portnyagina
Keyword(s):  
Hypericum Perforatum ◽  
Raw Materials ◽  
Geographic Origin ◽  
Komi Republic ◽  
Culture Conditions ◽  
Middle Taiga ◽  
Middle Taiga Subzone ◽  
Second Year ◽  
High Yields ◽  
Phenological Phases

The results of studying the growth, development and formation of the raw phytomass of Hypericum perforatum plants of different geographic origin during the introduction in the middle taiga subzone of the Komi Republic are presented. Seven samples of Hypericum perforatum were examined, including two cultivars: Zolotodolinsky and Solnechny. A sample (Tallinn No. 885) was identified, which differed in earlier dates of the onset of phenological phases. Hypericum perforatum plants under culture conditions in the middle taiga subzone of the Komi Republic are characterized by a stable developmental rhythm. It has been determined that the number of generative shoots in Hypericum perforatum increases with age. So, in two-year-old plants this indicator was 3-4, in four-year-old plants - 18-26 pcs. per individual. It has been established that from the second year of life, with the seedling method of growing, Hypericum perforatum plants are able to form high yields of medicinal raw materials. As a result of an assessment of the productivity of samples of cultivar Solnechny and sample from Barnaul.

scholarly journals Features of flowering and fruiting of the genus Cotoneaster Medik. species in the introduction of the Komi Republic

2019 ◽  
pp. 30-36
Author(s):  
A. N. Punegov ◽  
A. N. Smirnova ◽  
O. V. Skrotskaya
Keyword(s):  
Introduced Species ◽  
Plant Species ◽  
Growth Conditions ◽  
Komi Republic ◽  
Climatic Conditions ◽  
Middle Taiga ◽  
Seed Productivity ◽  
Seasonal Rhythm ◽  
Biological Features ◽  
Middle Taiga Subzone

The paper deals with the biological features of introduced species of Cotoneaster genus in the middle taiga subzone of the Komi Republic. The vegetation, flowering, fruiting, rhythm of shoots growth, winter resistance and seed productivity of six species of perennial plants of the genus Cotoneaster in new growth conditions were studied. The seasonal rhythm of development of all studied plant species at the point of introduction corresponds to the climatic conditions of the middle taiga subzone. The most promising species were selected for cultivation.

scholarly journals Amygdalus nana L. reproductive structures features study when introduced in the North

2018 ◽  
Vol 7 (3) ◽  
pp. 72-78
Author(s):  
Svetlana Alekseevna Miftakhova ◽  
Olga Valerievna Skrotskaya
Keyword(s):  
Structure Study ◽  
Komi Republic ◽  
Abnormal Development ◽  
Middle Taiga ◽  
Flower Structure ◽  
Additional Information ◽  
Reproductive Structures ◽  
Middle Taiga Subzone ◽  
The North ◽  
Flower Structures

As a result of Amygdalus nana plant flowers structure study, when introduced in the middle taiga subzone of the Komi Republic, its conformity to the species features of the plant is shown. The authors also note teratological changes, expressed in the abnormal development of sterile or fertile flower structures. The number of petals increases, their edges become wavy; stamens transform into petals, there is pistil underdevelopment, etc. The life cycle of A. nana flowers was traced in the conditions of the North, the duration of the phases of their development was determined (Phase I - dense green bud, II phase of pink bud, III phase - beginning of blossoming flower, IV phase - full blossoming of the flower and V phase - fading). The features of the fruiting process of A. nana are shown, where degeneration of fertilized ovules is noted, which is due to the possible violation of different stages of embryogenesis. In this case, a significant number of anomalies in the fertile parts of the flower, possibly, lead to a small number of fruits on plants. The analysis of the A. nana flower structure in the middle taiga subzone of the Komi Republic gives additional information on the intraspecific changes in the reproductive structures of this plant; the results obtained can serve as additional information for establishing anthocological differences within the taxon.

scholarly journals Growth, development, morphology and biochemical characteristics of Solidago canadensis L. plants when introduced in the middle taiga subzone of the Komi Republic

2021 ◽  
Vol 10 (3) ◽  
pp. 87-94
Author(s):  
Nadezhda Vasilyevna Portnyagina ◽  
Vasiliy Vitalyevich Punegov ◽  
Elmira Elizbarovna Echishvili ◽  
Marina Gennadyevna Fomina ◽  
Konstantin Vitalievich Chucha ◽  
...  
Keyword(s):  
Amino Acids ◽  
Komi Republic ◽  
Raw Material ◽  
Middle Taiga ◽  
Geranyl Acetate ◽  
Solidago Canadensis ◽  
Aboveground Phytomass ◽  
Middle Taiga Subzone ◽  
The North ◽  
First Time

The paper presents the results of a long-term study of four samples of Canadian goldenrod ( Solidago canadensis L.) of different geographic origin introduced in the middle taiga subzone of the Komi Republic. Under cultural conditions, the species is highly resistant and longevity (up to 18 years). It has been established that with the introduction in the North, reproduction of the Canadian goldenrod is possible by vegetative means, as well as from seeds of foreign origin. The mass transition of plants grown by seedlings to the generative period occurs in the third year of life. According to the flowering rhythm (July 31 - September 25), the species is classified as a mid-summer-mid-autumn plant. Fruiting of plants is interrupted by frost, full-fledged seeds are not formed. The morphological features of the generative shoot have been studied. The plant height in culture reaches 143-155 cm. The number of leaves on the stem is 63-101. The floral part of the shoot (inflorescence) 30-39 cm long is formed from the axils of 41-49 leaves and consists of 21-41 paracladia 8-13 cm long. The number of baskets on one shoot in different specimens of Canadian goldenrod varies from 2700 to 4200. The content of nitrogen mass fraction (1,8-3,0%) in the aboveground raw phytomass of Canadian goldenrod has been studied for the first time and the quantitative and qualitative composition of amino acids in plant proteins has been determined. The total content of amino acids in the plant raw material of Canadian goldenrod has varied from 7,9 to 15,1% over the years. In the aboveground phytomass of plants, 17 amino acids have been found and determined, including 7 irreplaceable ones. The share of essential amino acids has averaged 37% of the total. The highest rates of equity participation have been noted for the following amino acids: proline, glutamic, aspartic, lysine, leucine, valine, alanine, arginine and glycine - 13,2; 11,0; 10,8; 8,4; 8,0; 5,9; 5,8; 5,7 and 5,2%, respectively. In the conditions of the North, biochemical studies of this species have been carried out for the first time. The content of flavonols in the aboveground raw phytomass of Canadian goldenrod have been 4,5-5,7% and met the requirements for medicinal raw materials (more than 3%). The yield of essential oil and its component composition have been determined. The EO content in the aboveground phytomass of plants has varied from 0,85 to 1,7% in terms of absolutely dry raw material. In the composition of EM, 39 components have been reliably identified, nine of which have been attributed to the main ones. The dominant compounds are: -pinene (up to 43,9%), myrcene (up to 18,2%), limonene (up to 13,2%), -3-carene (up to 12,0%); from sesquiterpenoids: germacrene D (up to 54,3%), bornyl acetate (up to 5,8%), geranyl acetate (up to 2,4%), cadinadiene (up to 2,0%), sesqui-fellandrene (up to 1,4%).

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