Biology

Vegetation of the natural monument “Urochishche Kuzilinka” and its surroundings (Orel region)

Authors: Averinova E. A., Kazakov M. V., Kugusheva A. S., Sobolev N. A.

The article describes the calciphytic steppe communities located in the territory of the natural monument “Urochische Kuzilinka” and its surroundings (Orel region). The communities were assigned to the association Onosmato simplicissimae–Salvietum nutantis Averinova ass. nov. That unit was included in the sub-union Bupleuro falcati–Gypsophilenion altissimae Averinova 2005 (union Festucion valesiacae Klika 1931, order Festucetalia valesiacae Soó 1947, class Festuco–Brometea Br.-Bl. et Tx. ex Soó 1947) on the basis of a diagnostic species analysis. The new association was characterized.

The Genus Alchemilla L. (Rosaceae) in the Flora of Chuvashia

Authors: Chkalov A. V., Gafurova M. M.

In the flora of the Chuvash Republic, 40 species of the genus are revealed. 11 of these (A. altaica, А. argutiserrata, A. barbulata, A. cheirochlora, A. exilis, A. gibberulosa, A. hebescens, A. oxyodonta, A. plicata, A. sibirica, A. vorotnikovii) are registered in the Republic for the first time. Earlier, two species (A. pustynensis Czkalov and A. obtusa auct. non Buser) were noted here erroneously. Species are revealed whose richness corresponds to the level seen in neighbouring regions and approaches the maximum possible.

Influence of Amanita muscaria (class Agaricomycetes, fam. Amanitaceae) and Flammulina velutipes (class Agaricomycetes, fam. Physalacriaceae) on the growth and development of seedlings of Picea abies (class Pinophyta, fam. Pinaceae) and Abies sibirica (cla

Authors: Kalyakina R. G., Bastaeva G. T., Anhalt E. M., Bastaeva G. T., Lyavdanskaya O. A.

The article presents studies of the influence of Amanita muscaria and Flammulina velutipes on the growth and development of seedlings of species of the Pinaceae family. The positive effect of mycorrhization by these fungi species on the growth and development of Picea abies and Abies sibirica was established. Thus, the presence of Flammulina velutipes and Amanita muscaria in the substrate accelerated the appearance of the first shoots by 4–8 days. Mycorrhization of Amanita muscaria influenced the morphometry of the seedlings of Picea abies and Abies sibirica.

Diagnostics of Seed Reproduction Mode in Some Species Calamagrostis Adans. from Flora of Peninsula Kamchatska

Authors: Yudakova O. I.

The mode of seed reproduction in four species Calamagrostis of peninsula Kamchatka (Russia) flora has been examined (C. langsdorffii (Link) Trin., C. lapponica Wahl., C. neglecta (Ehrh.) Gaertn., C. sesquiflora Trin.). In C. lapponica and C. neglecta studied plants are characterized by highly degree of pollen sterility (61,2 and 24,8% respectively) and significant variation of pollen grains size (CV = 17,4 and 18,7%), which is typical for apomictic forms. The embryological particulars specific to apomictic plants were found in the analysis of female generative sphere too.

Species Composition of Beetles (Insecta: Coleoptera) Border Area «Wate – Land» of Medveditsa River Lysogorsky District (Saratov Area)

Authors: Sazhnev A. S.

The article contains the results of the coastal beetles research (Medveditsa river Lysogorsky district Saratov region). There is also a brief description of the investigated biotope. List of 19 faunal species of beetles, that contains 9 species and one family, which are specified as new to the fauna of the Saratov Area, is presented. The representatives of investigated set of beetles are divided into ecological groups.

To the Question of the Suitability of Soils Territory the Educational Centre «Botanical Garden» of Saratov State University for Growing Hybrid Gladiolus

Authors: Shakina T. N.

The hybrid gladiolus occupies one of the leading places among the huge number of perennial plants thanks to its decorative qualities and the timing of flowering. In order to select a site for the cultivation of gladiolus it is necessary to consider its requirements for agrochemical soil condition. The analysis was made of the soil territory the Educational Centre «Botanical Garden» of Saratov State University, which is used for the cultivation of corms gladioli. Necessary measure agrochemicals have been considered, in order to successfully cultivate gladioli in a botanical garden. 

Water Buttercups in Herbarium of Saratov State University (SARAT, SARP)

Authors: Arkhipova E. A., Sedova O. V., Boldyrev V. A.

Labels of specimens of genus Batrachium in Herbarium of Saratov State University (SARAT, SARP) are given. Comments to determination of some species of this genus are given.

Formation of Elements of Efficiency of the Spike Spring Soft Wheat

Authors: Stepanov S. A., Signaevski V. D., Kasatkin M. Y., Marina V. В.

Formation of elements efficiency of an spike wheat of different cultivar is analysed. It is offered to use for an estimation of potential productivity of a cultivar morphogenetic an efficiency index.

Features of Klonal Micropropogation of the Mountain Ash, Var. «Granatny»

Authors: Reshetnikova T. B., Kashin A. S.

The optimum variant of explant sterilization of mountain ash var. «Granatnaya» for introduction in culture in vitro has been picked up. It is shown that the nutrient medium WPM with addition of 1,0 mg/l of BAP is optimum for klonal mikropropogation, spontaneous regenerant rooting being found only on nutrient media without hormones. It has been established that the optimum variant of the nutrient medium at the stage of rooting is 1/2WPM with addition of 1,0 mg/l of NАА. Steadily propagating culture has been obtained and regular development of regenerants has been reached.

Steller Sea Lion (Eumetopias Jubatus Shreder 1776) Female Mating Behavior on Kozlova Cape Rookery (Kamchatka Peninsula)

Authors: Godyashcheva Y. S., Altuchov A. V., Belyachenko A. V., Burkanov V. N.

Cause-effect relationship has been identified for each of the observed mating event. There are a numbers of behavioral phases that occurring before and after a mating process. The most important factor that initializes precopulation behavior for males is an active aggressive behavior of females, indicating the behavioral manifestations of estrus. It was estimated that a high level of activity of females on a rookery after mating can cause other mating with another males.

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