scholarly journals ЩОДО ВИВЧЕННЯ БІОЛОГО–ЕКОЛОГІЧНИХ ОСОБЛИВОСТЕЙ ЖУРАВЛИНИ БОЛОТНОЇ OXYCOCCUS PALUSTRIS PERS. В ПОЛІСЬКОМУ ЗАПОВІДНИКУ

Author(s):  
Г.Й. Бумар
Keyword(s):  

Наведено результати багаторічних досліджень біолого-екологічних особливо-стей журавлини болотної Oxycoccus palustris в Поліському заповіднику. Подана характерис-тика основних негативних чинників, які привели до скорочення запасів даного виду (посухи, торфові пожежі). В результаті обстежень журавлинників виявлено декілька морфологічних форм ягід та зафіксоване рідкісне явище – вторинне цвітіння в період масового дозрівання ягід.

2012 ◽  
Vol 62 (1) ◽  
pp. 97-105 ◽  
Author(s):  
Artur Adamczak ◽  
Maciej Gąbka ◽  
Waldemar Buchwald

The aim of this study was to determine fruit yield of <i>Oxycoccus palustris</i> under the climatic and habitat conditions of northern Wielkopolska (the Greater Poland region), depending on the type of occupied plant community. Total fruit number and fruit weight as well as average cranberry leaf size were determined on 33 plots with an area of 1 m<sup>2</sup>, located on 7 peatlands. On the study areas, European cranberry produced crops from 9.2 up to 242.0 g &#56256;&#56457;&#56256;&#56323; m<sup>-2</sup>, which gives 92-2420 kg &#56256;&#56457;&#56256;&#56323;ha<sup>-1</sup>. It has been demonstrated that on the peatlands of northern Wielkopolska <i>O. palustris</i> reaches its generative and vegetative optimum in the communities of the class <i>Scheuchzerio- Caricetea fuscae</i>, in particular in the community <i>Sphagno recurvi-Eriophoretum angustifolii</i>.


2020 ◽  
Vol 10 (3) ◽  
pp. 306-350
Author(s):  
Ekaterina A. Shishkonakova

Oligotrophic ridge-hollow and ridge-hollow-pool complex mires are widely distributed in the central part of West Siberia, including many oil fields of the Middle Pre-Ob region. The article considers the dynamics of re-vegetation of oil and salt-contaminated areas of these mire types subjected to reclamation. Survey materials for 2–3 years and 15 years after reclamation allow to identify the main trends in vegetation restoration in the short and medium term. The reversible oligotrophication of ridges manifests in a relative decrease in the participation of the meso-eutrophic species on contaminated mire sites. In the hollows, however, the similar trend can be traced only in relation to oil-contaminated sites, whereas in the salt-contaminated hollows, the strong eutrophic conditions last. In the medium-term perspective, most typical oligotrophic hollow species, with the exception of Eriophorum russeolum and Oxycoccus palustris, were unable to recover. In the course of dynamic changes in the vegetation, the leading role in recovery successions gradually passes to mesotrophic and eutrophic species possessing massive root systems and aerenchyma – Eriophorum angustifolium, Phragmites australis, Carex rostrata, etc. Restoration of the moss layer is several years behind that of the grass layer, and due to the lack of competition, the participation of liverworts in it is of great importance, especially in salt spills. At the same time, among mosses as in the case of vascular species mesotrophic components are the main dominant ones15 years after reclamation.


VAVILOVIA ◽  
2020 ◽  
Vol 2 (3) ◽  
pp. 42-55
Author(s):  
G. V. Talovina

Eight species classified as rare in the Magadan Province, including those located at the boundary of their natural distribution area, with a narrow ecological amplitude, require not only monitoring of the known, but also search for new populations. These species can be recommended for the inclusion in the Red List of Crop Wild Relatives of the Far East. Most successfully these species can be conserved in protected areas with a special conservation regime. Populations of three species recorded in the Magadansky State Nature Reserve (Allium ochotense Prokh., Caragana jubata (Pall.) Poir. and Oxycoccus palustris Pers.) should be monitored on a regular basis. The occurrence of Rheum compactum L. in the nature reserve needs to be confirmed. Also, Rheum compactum L. and others species not recorded in the nature reserve, i.e., Artemisia dracunculus L., Bromopsis canadensis (Michx.) Holub, Dracocephalum stellerianum F. Hiltebr. and Linum komarovii Juz., require a search for stable cenoses (and establishment of intracenotic relations) in order to justify the need in creating special nature micro-reserves, including those in other specially protected areas of the province.


Author(s):  
V. P. Heluta

Abstract A description is provided for Podosphaera myrtillina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Powdery mildew of plants belonging to the Vacciniaceae only. Infected plants usualy change colour, Ascomata form a brown layer on damaged green parts of host. Development of the disease can by epiphytotic, in which case the crop of berries can be significantly reduced. HOSTS: Arctostaphylos alpina (?), Ledum groenlandicum (?), Vaccinium angustifolium (V. pennsylvanicum), V. × intermedium (V. myrtillus × vitis-idaea), V. membranaceum, V. myrtillus, V. oxycoccos (Oxycoccus palustris, O. quadripetalus), V. uliginosum, V. vitis-idaea. [Type species - Vaccinium myrtillus] GEOGRAPHICAL DISTRIBUTION: Asia (temperate areas only): Republic of Georgia, Russia (all Russian far east including Kamchatka; west, south and east Siberia including Yakutia). Europe: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Greenland, Hungary, Iceland, Italy, Latvia, Lithuania, Netherlands, Norway, Poland, Rumania, Russia (western and northwestern areas of European part, Moscow oblast'), Slovakia, Sweden, Switzerland, Ukraine, former Yugoslavia. North America: Canada, USA (including Alaska). TRANSMISSION: Probably by wind-dispersed conidia. The rôle of ascospores in disease transmission is unknown, although it has been supposed that they can cause the initial stage of the disease. Infection can also, however, occur from colonies surviving in host buds. In addition, ascomata of Podosphaera myrtillina, especially of var. major, intertwine their appendages to form clusters which are dispersed by rain or wind.


Author(s):  
Maryna Sherstuk
Keyword(s):  

Охарактеризовано величини 14 статичних метричних та шести статичних алометричних морфопараметрів рослин Oxycoccus palustris Pers. у чотирьох фітоценозах Українського Полісся. Показано, що особини з різних рослинних угруповань статистично достовірно відрізняються між собою величинами майже всіх розмірних показників. Установлено, що значення більшості статичних метричних морфопараметрів у рослин Oxycoccus palustris зростають у такій послідовності екоряду фітоценозів: Betuleto (pubescentis)–Pinetum (sylvestris) vaccinioso (myrtilli)–sphagnosum (cuspidatі) → Betuleto (pubescentis)–Pinetum (sylvestris) eriophoroso (vaginati)–sphagnosum (cuspidatі) → Pinetum (sylvestris) sphagnosum (cuspidatі) → Sphagnetum (cuspidatі) eriophorosum (vaginati). Доведено, що в кожному фітоценозі формуються особини зі специфічною морфоструктурою. Для досліджуваних угруповань визначено характерні морфоознаки рослин Oxycoccus palustris та побудовано їхні морофограми.


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