scholarly journals Phenology of Pentaphylloides representatives in the Mari El Republic

Author(s):  
Lyudmila Vitalievna Sukhareva ◽  
Svetlana Valer'evna Mukhametova ◽  
Tat'yana Yur'evna Zhelonkina

Representatives of the genus Pentaphylloides are low ornamental shrubs that are valued for long abundant flowering, compact size and unpretentiousness to growing conditions. P. fruticosa is a valuable plant that has not only decorative value, but also food, medicinal, soil protection. For medicinal purposes, young flowering shoots are used, harvested during budding and flowering. The article presents the results of phenological observations in 2018-2020. The objects of the study were plants of 8 kinds of Pentaphylloides in the collection of the Botanical Garden-Institute of Volga State University of Technology (Yoshkar-Ola, Mari El Republic). The studied plants undergo most phases of seasonal development, with the exception of the mass end of shoot growth, complete lignification of shoots, mass ripening of fruits, mass leaf fall. Species and cultivars vegetated from the end of April – the beginning of May to the end of October in a short time. The vegetation period was 177-182 days. There was no significant difference in the timing of the passage of phenophases between the taxa. Plants of Р. × friedrichsenii and P. mandschurica passed most of the phenophases earlier than the average dates for the genus, and 'Goldfinger' and 'Klondike' – later. The earliest and longest flowering was characterized by P. friedrichsenii (65 d.), the latest and shortest – P. fruticosa (28 d.). All plants of P. fruticosa cultivars bloomed for a longer period than the species. After mass flowering, single flowers were observed in representatives of Pentaphyloides until mid-October.

Author(s):  
N. M. Kuz'mina ◽  
А. V. Fedorov

Representatives of the genus Hortensia (Hydrangea L.) are ornamental shrubs that are highly valued in landscape construction. Today, it is important to create new and reconstruction of existing recreational areas for the recreation of the population. This leads to an increase in the demand for ornamental trees and shrubs as a material for green building. In the Middle Urals, the species of Hydrangea are still rarely used due to the poor knowledge of the bioecological characteristics of various species and varieties under the given growing conditions. The paper gives a characteristic of varying degrees of adaptability to unfavorable abiotic and biotic environmental factors of 14 species and varieties of Hydrangea (Hydrangea) from the collection of the Department of Plant Introduction and Acclimatization, which was planted on the territory of the UdmFIC UB RAS in Izhevsk in 2017. For decorative features, a technique developed by the staff of the Botanical Garden of Ufa was used. Methodological developments on decorativeness of various cultures are taken as a basis. The characteristics of meteorological conditions during the years of research (2019-2020) are given. According to the research results, 7 representatives of the Hydrangea genus were noted as the most promising candidates for green construction in the cities of the Middle Urals. Hydrangea paniculata (H. Paniculata): ‘Lime Light’. ‘Pinkie Winky’, Weems Red ’, Vanilla Fries’. Hydrangea serrata (H. Serrata) 'Bluebird', Hydrangea petiolar (H. petiolaris) and hydrangea tree (H. arborescens). According to the results of two years of observation (2019-2020), these taxa had a decorativeness rating of 50 to 73 points and were assigned to the II group of decorativeness, winter hardiness (5 points). It was noted that unfavorable climatic conditions (moisture deficit, cool May and June 2020) reduced the average decorative score of the entire collection of representatives of the genus Hydrangea by 10 points. This was mainly due to the quality of the flowering.


Author(s):  
Svetlana Valer'evna Mukhametova

Among fruit crops, Rowan is one of the most winter-hardy. In Russia, the predominant varieties are those derived from Sorbus aucuparia. Rowan fruits are used in fresh and dried form, they are valuable in food, dietary, and medicinal terms. The objects of this study were 7 Rowan varieties in the exposition «Wild fruit plants» of the Botanical garden-Institute of Volga State University of Technology (Yoshkar-Ola, Mari El Republic). The research was conducted in 2014–2019. The fruits were collected in the mass maturation phase and weighed in 3 samples of 100 pieces. The yield of air-dry fruits, expressed as a percentage, was obtained by the ratio of the mass of dried fruits to the mass of freshly harvested ones. It was found that the varieties ‘Alaya Krupnaya’, ‘Titan’, ‘Granatnaya’, and ‘Burka’ are characterized by large fruits. ‘Desertnaya Michurina’, ‘Nevezhinskaya’, and ‘Doch Kubovoy’ are small-fruited varieties. The most favorable for fruiting of most varieties were 2016 and 2019 with dry conditions of the growing season. Excessively moistened conditions in 2017 negatively affected the formation of Rowan fruits. The yield of air-dry raw materials was inversely correlated with the weight of fruits. The obtained data can be used in the organization of plantation cultivation of Rowan varieties in the conditions of the Volga-Vyatka region.


2018 ◽  
Vol 7 (3) ◽  
pp. 88-93
Author(s):  
Nadezhda Vasilyevna Portnyagina ◽  
Elmira Elizbarovna Echishvili ◽  
Vasiliy Vitalyevich Punegov ◽  
Marina Gennadyevna Fomina

The paper presents the results of studying the introduction of seven Tanacetum vulgare samples of different geographical origin in the Botanical garden at the Institute of Biology of Komi Scientific Center of the Ural Branch of RAS. In the first year of life the plants of tansy ordinary are in the pregenerative period, from the second year they bloom regularly and bear fruit. It has been established that in the conditions of culture the species are highly resistant and long-lived (more than 12 years). The study of the seasonal development of plants Tanacetum vulgare has showed that all samples retain phenological rhythms peculiar to this species: stretched flowering periods (33-44 days) and fruiting periods (44-52 days). Early and late samples have been identified by the timing of the entry of plants into the flowering phase. The vegetation period from the beginning of vegetation to the formation of mature fruits is 116-138 days. The growth of plants in height (109-131 cm) continues to the phase of mass flowering. The highest average daily growth (2,6-3,6 cm) was observed in the budding phase. Morphological options of generative escape have been studied. It has been revealed that the signs characterizing the flora part of the escape vary in populations at high and very high levels, which indicates the real possibility of improving the population by the method of targeted selection. The productivity and component composition of the essential oil from above-ground phytomass Tanacetum vulgare have been determined. The obtained data indicate the possibility of cultivation of this species in order to obtain high-quality medicinal raw materials. The optimal method of growing plants to create long-term plantations has been revealed.


2020 ◽  
pp. 162-175
Author(s):  
Mikhailo Matusiak

The analysis of the results of phenological observations on 7 phases, which reflect the main moments of seasonal development of plants, was carried out: 1 – the beginning of vegetation, which is characterized by budding and appearance of a cone of leaves; 2 – from the end of the growing season until the phase of massive leaf fall; 3 – the beginning of shooting; 4 – the end of shoot formation; 5 – the beginning of flowering; 6– flowering completion; 7 – massive ripening of fruits. To compare the rhythm of introducers’ development in the new conditions, the European Forsythia, as the most adapted to our conditions variety, was chosen. It was established that under our conditions the vegetation period of Forsythias begins at the late March – early April, when the average daily temperature does not exceed +4 0C, that is, at the general period of vegetation beginning of woody plants. Most of the varietie sunder study start their vegetation by April, 3, when, according to the long-termaverage data, the growing season usually begins. The sum of positive temperatures above 0 0C during this period ranges from 3.2 to 17 0C. Forsythia Ovata begins to vegetate a bit later. As a result of the research, we have determined that at Forsythias under study the shoot formation began in the third decade of April – the first decade of May. This corresponds to the11.5-18.7 0C average air temperature, with a 25.6-29.8 0C sum of active temperatures above zero. According to duration of the period of shooting and its completion, we have attributed the studied Forsythias to the group with a short (up to 115 days) growth period. According to our observations, in Vinnytsia the flowering periods of Forsythia lasts averagely for 13-15 days. The shortest flowering period – 13 days – was observed at the Forsythia Ovata. The period of fruit formation in the studied Forsythia varieties is rather short (from 18 to 32 days) and depends on the sum of temperatures, terms of the variety flowering, its geographical origin and systematic position. As a result of the conducted observations, 30% of the annual shoots tips of the Forsythia Suspensa (up to 10-15 cm) were found damaged, but this did not cause a loss of decorativeness, since this species has a high growth rate (50-90 cm), thus there is no reason to claim its complete winter intolerance and low perspectives for its growing. Forsythia Ovata was not bitten by the frost, annual shoots of Forsythia Europaea was slightly frostbite during the frosts at the end of March 2019 at the level of 15% (5-6 cm). Study of the given species showed that all the Forsythia plants introduced in the territory of the VNAU biostationary show regular growth of shoots, satisfactory level of winter hardiness, formation of seeds capableof germination in Vinnytsia conditions (F. Sus. var. Sieboldii, F. Sus. var. Fortunei). Key words: biostationary, botanical garden, forsythia, tolerance, vegetation period, acclimatization, winter hardiness, drought resistance.


Author(s):  
Lyudmila Vitalievna Sukhareva ◽  
Svetlana Valer'evna Mukhametova ◽  
Kseniya Aleksandrovna Veselova

Species of the genus Philadelphus L. (mock orange) are among the most popular ornamental shrubs. They are valued for low maintenance, abundant flowering, exceptional aroma of flowers and a prolonged flowering period during high summer, by when many shrubs already fade. The results of phenological observations of 2018-2020 are presented in the article. The objects of the research were the plants of 8 cultivars of mock orange selected by N. K. Vekhov in the Botanical Garden-Institute of VSUT (Yoshkar-Ola, Mari El Republic). The vegetation of plants lasts from the beginning of May to the end of September and has a duration of 177-189 days.  The 'Airborne force' (Vozdushny desant) cultivar was characterized by the longest growing season.  The full leafing occurred in the first decade of June, the growth of scions ended in the first half of August. Flowering began in the third decade of June and lasted on average for 13-28 days. The cultivar 'Vosdushny Desant' has the earliest beginning of flowering, 'Arktika' has the latest one. The plants of 'Elbrus' were characterized by the longest flowering, 'Yunnat' – by the shortest one. There was no connection between the duration of flowering and the structure of flowers.


Author(s):  
S. Y. Kazarova ◽  
G. A. Boyko

This work analyzes the seasonal development of some representatives of the genus Acer L. growing inthe arboretum of the Botanical Garden of Moscow State University. M. V. Lomonosov. Of the 23 taxa studied, therepresentatives of the genus are distinguished by the greatest adaptability to the temperate continental climate of CentralRussia, having negative indicators of the atypicality coefficient with values from – 1,14 to – 0,15. Plants of this groupmainly have natural habitats in the temperate regions of the Far East, Central Asia, Europe, and North America. The leastadapted species have FA indices from 1,08 to 1,11, growing in the Eastern Transcaucasia , Iran, Japan.


Author(s):  
A. N. Danilova ◽  
A. A. Sumbembaev ◽  
Yu. A. Kotukhov

Аn adaptive assessment was given to 3 samples of Cypripedium macranthon attracted to the introductionfrom different ecological and phytocenotic growing conditions for the formation of a cultigenic population of the speciesin the Altai Botanical garden. According to the results of phenon observations and biometric indicators, Cypripedium macranthon samples were attracted to the introduction from young birch communities from the territory of the Southern Altaiwith a vertical distribution threshold from 415 to 1057 m above the sea level. They are stable in culture and undergo a fullcycle of seasonal development. However, due to the lack of self-seeding, it is premature to talk about the success of creatinga cultigenic population of Cypripedium macranthon.


2020 ◽  
Vol 9 (3) ◽  
pp. 148-151
Author(s):  
Irina N. Turbina ◽  
Inessa V. Kravchenko

The paper deals with the results of introduction studies of herbaceous perennials of the family Asteraceae Centaurea dealbata Willd., Helenium hoopesii Gray, Achillea filipendulina Lam; family Hemerocallidoideae Hemerocallis fulva L.; family Scrophulariaceae Penstemon digitalis Nutt. ex Sims in Surgut State University Botanical Garden. It has been established that their seasonal development is characterized by long vegetation; phenorithmotype has been identified as spring-summer-autumn-green, with a flowering period starting in late summer and autumn periods. The quantitative determination of pigments of the introduced species leaves has been carried out by a spectrophotometric method. As a result, it has been revealed that the pigment composition of the leaves of experimental perennials indicates their relatively high physiological status, species specificity and dependence on the phase of plants vegetation. It has been noted that the content of yellow pigments during the growing season was stable and several times inferior to the level of chlorophylls. An increase in the concentration of carotenoids and flavonoids of most of the experimental plants has been observed during the formation of generative organs and fruits ripening. The data obtained highlight the relevance of analyzed species as a source of decorative perennials stable in culture, characterized with long vegetation and flowering periods.


Author(s):  
I. T. Kishchenko ◽  

The results of studies carried out in 1988–2016 are presented, from April to October in the Botanical Garden of Petrozavodsk State University (South Karelia, middle taiga subzone). The objects of research were representatives of 4 introduced species of the genus Pinus: P. strobus L., P. montana Mill., P. pu-mila (Pall.) Regel., P. sibirica Du Tour. The timing of the onset of almost all phenophases in the species of the species Pinus under study largely depends on the current temperature regime of the air, the state of the environment for several days prior to the beginning of a particular phenophase, and also on the values – of the main environmental factors during the formation of wintering buds of the last year. A straight-forward correlation was found between the dynamics of the studied environmental factors and the timing of the onset of phenophases. The earliest dates of the onset and end of phenophases were noted in P. pu-mila, and the latest in P. strobus. A comprehensive assessment of the prospects of the studied species made it possible to establish that P. sibirica, P. montana, and P. pumila (58–65 points) are quite promis-ing, and P. strobus are promising (57 points). These species can be recommended for introduction into cultural communities and landscaping of settlements with a low degree of pollution by pollutants.


Author(s):  
Svetlana Valer'evna Mukhametova ◽  
Natalya Olegovna Novgorodskaya ◽  
Svetlana Viktorovna Anisimova

The article contains the results of observations over 5 maple (Acer L.) species conducted in 2014 - 2018. The research objects are the plants growing in the Botanic garden of the Volga region State University of Technology: A. campestre, A. platanoides, A. pseudoplatanus, A. tataricum, A. trautvetteri. Their natural habitats are in the Caucasian-European region. In the wild, only A. platanoides grow on the territory of the Republic, others are introduced species. The authors analyze weather conditions over 5 years of research and establish that at higher average daily temperatures in 2016, the seasonal development stages came earlier, while colder weather conditions of 2017 hampered the phenophase. On average, the maples under study started vegetation in the first decade of May, and finished it in the third decade of September - mid October. The earlier vegetation started, the earlier sprouts started growing and flowering began. The easiest flowering was registered for A. platanoides in the second decade of May, then for A. campestre in the third decade of May. The latest and the longest flowering was registered for A. tataricum. Long-vegetating species were characterized by long growing of sprouts and late fall of leaves. In the autumn period, A. campestre and A. tataricum are the fanciest with a long period of leaves coloring.  A. pseudoplatanus and A. trautvetteri don’t have a phase of generative development due to poor winter resistance, and are not recommended for use in landscaping.   


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