scholarly journals Epiphytic lichen cover of collection trees of arboretum of the Botanical Garden of Petrozavodsk State University

2021 ◽  
Vol 20 (1) ◽  
pp. 23-27
Author(s):  
V. I Androsova ◽  
T. N. Chernisheva
Keyword(s):  
Introduced Species ◽  
Botanical Garden ◽  
Projective Cover ◽  
State University ◽  
Epiphytic Lichen ◽  
Coniferous Species ◽  
Model Object ◽  
Number Of Species ◽  
Lichen Cover ◽  
Introduced Trees

At present, 264 species of lichens and allied fungi have been recorded for the territory of the BotanicalGarden of Petrozavodsk State University (Republic of Karelia) and 112 species have been found in its arboretum, wheremore than 200 species of introduced trees grow. The paper presents the results of studying the features of the epiphyticlichen cover of the collection trees of the arboretum of the Botanical Garden of PetrSU (Republic of Karelia). Results of thestudy are based on 1662 descriptions of the epiphytic lichen cover on 209 trees of coniferous species and 1150 descriptions –on 143 deciduous introduced species.The average total projective cover of lichens on the trunks of the studied coniferous introduced species reaches 18 % atthe trunk base, and 19 % – at a height of 130 cm above the ground. The number of species in the descriptions of epiphyticlichen cover varies from 0 to 12 (0.8 in average). The highest values of the projective cover of lichens and the numberof species in the descriptions were observed on the trunks of conifers of the genus Pinus, the lowest – on the trunks oftrees of the genus Thuja. The average total projective cover of lichens on the trunks of the studied deciduous introducedspecies was 8 % at the base, and 25 % – at a height of 130 cm above the ground. The number of species in the descriptionvaries from 0 to 9 (1.0 in average). The highest values of the projective cover of lichens and the number of species in thedescription are noted on the trunks of the genus Quercus, the lowest – on the trunks of trees of the genus Ulmus. Collectiontrees of arboretum tree represent a model object for observing the features of the formation of the epiphytic lichen cover

scholarly journals The morphogenesis of vegetative buds of Picea species (Pinaceae), introduced in the taiga zone (Karelia)

2021 ◽  
pp. 42-48
Author(s):  
I. T. Kishchenko ◽  
V. V. Trenin
Keyword(s):  
Introduced Species ◽  
Native Species ◽  
Botanical Garden ◽  
Middle Part ◽  
Taiga Zone ◽  
State University ◽  
Annual Increment ◽  
Start Date ◽  
Vegetative Buds ◽  
Picea Species

The observations were carried out in the Botanical garden of the Petrozavodsk state University, located in the taiga zone. Objects of research served 1 native and 5 introduced species: Picea abies (L.) Karst., P. obovata Ledeb., P. mariana Britt., P. glauca (Mill.) Вritt., P. pungens Engelm., P. omorica (Pane) Purk. The study of morphogenesis in vegetative buds was carried out axial shoots from the middle part of the crown since the beginning of the bud swelling until the cessation of laying primordial needles (May to September). The growing shoots are cut off after 2-3 days and were fixed in a mixture of alcohol and glycerin. For the start date of a stage, took the time when it was noted in not less than 30% of the buds. It is established that intrarenal development of vegetative organs from the native species P. abies was studied and introduced species of the genus Picea characterized by similar phases: rest, laying cover scales and laying primordial needles. Morphogenesis of vegetative buds of P. abies on the timing ahead of the development of the bud in the introduced species, which indicates a much greater insistence of the latter to temperature. The duration of the morphogenesis of the buds in all studied types varies slightly (days 131-137). However, the morphogenesis of vegetative buds of native species for 1-4 weeks ahead in terms of development of the buds in introduced species with a similarity of morphogenesis of the bud (P. abies and P. glauca), the value of the annual increment of the shoots is almost the same.

scholarly journals Development of female hametophytis and embryogenesis of introduced species Picea A. Dietr. in the Taiga Zone (Karelia)

2021 ◽  
Vol 21 (1) ◽  
pp. 48-55
Author(s):  
Ivan T. Kishchenko ◽  
◽  
Vitaliy V. Trenin ◽  
Keyword(s):  
Introduced Species ◽  
Native Species ◽  
Female Gametophyte ◽  
Botanical Garden ◽  
Middle Taiga ◽  
Taiga Zone ◽  
State University ◽  
Nuclear Stage ◽  
Picea Species ◽  
Empty Seeds

The aim of the research was to establish features in macrosporogenesis, macrogametogenesis, and embryogenesis in Picea species (native species P. abies and introduced species P. canadensis and P. pungens) in the Botanical Garden of Petrozavodsk State University (middle taiga subzone). To study the development of the generative sphere, shoots with generative buds and strobiles from the southwestern side of the crown were cut from 10 trees and fixed in a mixture of alcohol and glycerin. The development of the female gametophyte and the embryo was studied with constant preparations. Preparations for anatomical examination of the kidneys were prepared according to standard methods. In this case, double fixation in glutaraldehyde and osmium was used, wiring through alcohol and acetone, and encapsulation in epoxy resin. Sections with a thickness of about 1 μm were prepared on an ultramicrotome and stained in a 1% aqueous solution of methylene blue. Studies have established that in mid-May, the female gametophyte is still at a free stage, and by the beginning of June it already has a cellular structure. Embryogenesis begins in late July and ends in the second decade of August. In introduced species, various deviations are observed in the development of the female generative sphere and during embryogenesis. The main ones are the degeneration of the female gametophyte at the free-nuclear stage and the destruction of archegonia at the stage of proembryogenesis. For this reason, from 37 to 51% of the seeds of introducers are devoid of the embryo. The largest percentage of empty seeds and the most recent stages of the passage of the main stages of morphogenesis are observed in P. pungens. This indicates the least degree of adaptability of the generative sphere of this species of introducer to new conditions.

scholarly journals Seasonal development and perspectivity of introduced species Pinus L. in the taiga area (Karelia)

2021 ◽  
pp. 149-157
Author(s):  
I. T. Kishchenko ◽  
Keyword(s):  
Environmental Factors ◽  
Introduced Species ◽  
Temperature Regime ◽  
Botanical Garden ◽  
Middle Taiga ◽  
Seasonal Development ◽  
State University ◽  
Low Degree ◽  
Almost All ◽  
State Of The Environment

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.

Yield and seed productivity of pear rootstock forms in the conditions of the steppe zone of the Southern Urals

2020 ◽  
Vol 62 ◽  
pp. 39-47
Author(s):  
A. I. Lokhova ◽  
E. Z. Savin ◽  
A. M. Rusanov ◽  
A. A. Mushinskiy
Keyword(s):  
Steppe Zone ◽  
Southern Urals ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
High Yield ◽  
State University ◽  
Maximum Weight ◽  
Seed Productivity ◽  
The Southern Urals ◽  
Typical Soil

The article presents the results of studying the diversity of pear rootstock forms in terms of yield and seed productivity. The research was carried out at the experimental sites of the Orenburg Experimental Station of Horticulture and Viticulture of AllRussian Horticultural Institute for Breeding, Agrotechnology and Nursery and the Botanical Garden of the Orenburg State University in 2017-2019, in typical soil and climatic conditions of the Orenburg city. The purpose of the study is to identify pear rootstock forms characterized by high yield and stable seed productivity for use in the future as a seed rootstock. During the research, 15 pear accessions were studied; the planting scheme was 6x4 m. As a result of research, it was found that the rootstock form Temno-zelenaya is characterized by a high yield (40 kg/tree). High seed productivity of more than 6 seeds in one fruit was observed in samples: Vernaya (6.0-6.5 pcs.), SK-1, SK-3 (6.1-7.8 pcs.), SK-2 (7.0-7.5 pcs.), Chang Bai Li (7.4-7.7 pcs.), Semennaya 214 (7.5-7.8 pcs.). It was revealed that the Xiao he Bai Li variety is characterized by the maximum weight of 1000 seeds (65.2 g). Analysis of accessions by seed yield established that a consistently high yield is observed in the varieties Chang Bai Li (2.5-4.2 %), Vernaya (3.96-4.18 %) and forms SK-1 (2.0-3.25%), SK-2 (2.25-2.75 %), SK-3 (1.43-4.0 %). Pear rootstock forms Chang Bai Li, Vernaya, Semennaya 214, SK-1, SK-2, SK-3 were identifi ed, which can be recommended for production testing as seed pear rootstocks for the conditions of the steppe zone of the Southern Urals.

Anatomical and ecological and biological features of the genus Malus Mill. in training botanical garden of the Kuban State University

2019 ◽  
Vol 1 (77) ◽  
pp. 122-128
Author(s):  
Lyudmila Makarova ◽  
◽  
Svetlana Bergun ◽  
Tatyana Yanenka ◽  
Sergey Krivorotov ◽  
...  
Keyword(s):  
Botanical Garden ◽  
State University ◽  
Biological Features

scholarly journals Taxonomic synopsis and analytical key for the genera of Solanaceae from Rio Grande do Sul, Brazil

2011 ◽  
Vol 25 (2) ◽  
pp. 346-362
Author(s):  
Edson Luís de Carvalho Soares ◽  
Márcia Vignoli-Silva ◽  
Lilian Auler Mentz
Keyword(s):  
Introduced Species ◽  
Native Species ◽  
Rio Grande ◽  
Identification Key ◽  
Rio Grande Do Sul ◽  
Number Of Species

This work consists of a taxonomic synopsis of the genera of Solanaceae in Rio Grande do Sul state, Brazil. Solanaceae is represented by 28 genera in this state: Acnistus Schott, Athenaea Sendtn., Aureliana Sendtn., Bouchetia Dunal, Browalia L., Brugmansia Pers., Brunfelsia L., Calibrachoa La Llave & Lex., Capsicum L., Cestrum L., Datura L., Dyssochroma Miers, Grabowskia Schltdl., Jaborosa Juss., Lycianthes (Dunal) Hassl., Melananthus Walp., Nicandra Adans., Nicotiana L., Nierembergia Ruiz & Pav., Petunia Juss., Physalis L., Salpichroa Miers, Schwenckia L., Sessea Ruiz & Pav., Solandra Sw., Solanum L. (including Cyphomandra Sendtn. and Lycopersicon Mill.), Streptosolen Miers and Vassobia Rusby. Of these, 23 consist of native species , while five are represented exclusively by introduced species. The total number of species is 149, of which 118 are native and 31 are introduced (adventitious or cultivated). An identification key for genera, and also comments on the most relevant taxonomic characters of each one are presented, plus comments on the species that occur in Rio Grande do Sul state.

scholarly journals Ecological Resource and its realization in the Botanical Garden of the Voronezh State University

2016 ◽  
Vol 11 (11) ◽  
pp. 20-33
Author(s):  
Andrey Alekseevich Voronin ◽  
Zoya Pavlovna Mukovnina ◽  
Alla Vitalyevna Komova
Keyword(s):  
Botanical Garden ◽  
State University

scholarly journals Introduction and ex-situ conservation of red-list medicinal plants in Andhra University Campus

2016 ◽  
Vol 5 (3) ◽  
pp. 31-42
Author(s):  
J Prakasa Rao ◽  
SB Padal
Keyword(s):  
Medicinal Plants ◽  
Introduced Species ◽  
Ex Situ Conservation ◽  
Botanical Garden ◽  
Red List ◽  
Ex Situ ◽  
University Campus ◽  
Great Pressure

Medicinal plants are now under great pressure due to their excessive collection so there is a need to immediate attention for conservation of some important medicinal and red list plants. During the period of 2009-2015 germplasm was collected and introduced in to the Andhra University Botanical Garden. A total of 72 introduced species belonging to 66 genera and 35 families were successfully acclimatized in the botanical garden, included 18 red list plants. After acclimatization all plants are transferred to the garden and special block was maintaining as red list medicinal garden.International Journal of Environment Vol.5(3) 2016, pp.31-42

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