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Прошлое и современное распространение сосновых лесов на Южном Урале и в Башкирском Предуралье

Authors: Putenikhin V. P.

По литературным источникам кратко охарактеризованы история распространения и современная пространственная структура ареала сосны обыкновенной (Pinus sylvestris L.) на Южном Урале и в Башкирском Предуралье. Указаны основные области распространения сосновых лесов, различающиеся историей становления, географическим положением и лесоводственными особенностями.В пределах каждой такой области выделены отдельные районы обитания вида. 

К семенному возобновлению Сalophaca wolgarica (l. fil.) dc.) в естественных ценопопуляциях Волгоградской области

Authors: Shilova I. V., Demochko Y. A., Petrova N. A., Pastukhova A. I.

Описаны морфология и окраска семян Calophaca wolgarica (L. fil.) DC.). Определены размеры семян, масса 1000 шт. семян, семенная продуктивность растений, лабораторная всхожесть и энергия прорастания семян, собранных в природных популяцияx на территории Волгоградской области.

The diversity of the steppes of the Southern part of the Right bank of Saratov region

Authors: Reshetnikova T. B.

The features of the steppe vegetation in the southern part of the right bank of Saratov region. Studied and described the types of steppes and variations found on the site, showing their floristic composition and cenoticheskoe variety.

Distribution of broomrape qom and blednocvetkovoj in crops of sunflower broomrape and related weeds in the Saratov region

Authors: Sibikeeva Y. E., Borisov S. Y., Mikhaylov M. A.

The review of a condition of a problem in the last century is resulted. The distributions broomrape in the Saratov area for last 12 years on sunflower and weeds in sunflower crops was is studied. The dependence of widespread and intensity of severity broomrape from structure of areas under crops and expansion  of its racial and specific structure is shown.

Effects presowing seeds spring wheat

Authors: Starichkova N. I., Sorokovikova E. S., Kushneruk М. А., Antonyuk L. P.

Are cited data about influence of the microbiological preparations containing roststimuliruyushchy rizobakteriya, on efficiency of plants of spring-sown weak field. Good results are received at wheat cultivation in stressful conditions. At a slight deviation of climatic conditions from norm, positive influence of bacteriemic preparations on increase in a sign «the productive kustistost» statistically is not confirmed.

Ontogenesis and structure of tsenopopulation of the yarrow noble (Achillea nobilis L.) in the conditions of the Saratov region

Authors: Bulanaya M. V., Reshetnikova T. B.

Are submitted data on research of an ontogenesis and structure of a tsenopop- ulyation of Achillea nobilis L. in the conditions of the Saratov region.

Quality of Oxytropis spicata (Pall.) O. et B. Fedtsch. (Fabaceae) seeds from natural populations

Authors: Elizareva О. А., Kunakasova G. G.

Data on the study of laboratory germination of endemic species Oxytropis spicata (Fabaceae) seeds collected in 7 populations of the Bashkortostan Republic and Orenburg region are presented.

Hidrophilic plants of river Medvedica and their relation with phytophylous chironomids (Diptera, Chironomidae)

Authors: Oglezneva A. A., Durnova N. A.

Seven species of macrophytes (Sagittaria sagittifolia L., Sparganium erectum L., Typha angustifolia L., Butomus umbellatus L., Bolboschoenus maritimus (L.) Palla, Eleocharispalustris (L.) R. Br., Glyceria arundinaceae Kunth) were detected in Medvedica river, live tissues of which are populated by chironomids larvae. The most populated macrophyte is Sagitaria sagitifolia - 2298,65 ex/kg.

Vitality state cenopopulations of Hypericum perforatum in Saratov region

Authors: Parkhomenko V. M., Kashin A. S.

In this article authors write about the vital structure ofpopulations H. perforatum in the Saratov region. According to vitality of investigated cenopopulations most of them belong to prosperous type. Vitality of cenopopulations is retrogressing in the following range habitats: anthropogenic transformed - forest glades and forest edges - steppe -forest. On vital status of individuals influence weather conditions. The maximum decline in vitality occurred in populations of steppe habitats, and the minimum - on abandoned arable land, surrounded by forest plantations.

Characteristic of plant associations with the big stonecrop (Sedum maximum L.) in the Saratov region

Authors: Plastun V. O., Zabaluev A. P.

8 associations with Sedum maximum from different districts of Saratov region were studied. 76 species, 64 genera, 22 families of vascular plants were found. It was established, that associations are different in general among themselves. In the researched associations permanent herbs prevail.

Influence of conditions of cultivation and preseeding processing on the productive kustistost of spring-sown weak field

Authors: Starichkova N. I., Zlobina L. N.

Are cited data about influence of the microbiological preparations containing roststimulirnyushchy rizobakteriya, on efficiency of plants of spring-sown weak field. Good results are received at wheat cultivation in stressful conditions. At a slight deviation of climatic conditions from norm, positive influence of bacteriemic preparations on increase in a sign «the productive kustistost» statistically is not confirmed.

The morfological chacteristics of fruits and seeds of the South-ural Oxitropis uralensis(L.) Dc. species

Authors: Arslanova L. R., Maslova N. V.

A comparative analysis of morphometric characteristics of Oxytropis uralensis fruits and seeds from natural populations of the South Ural was conducted. There  was no a significant differences in the value of the coefficient of variation between the populations. However the studied populations of O. uralensis have significant differences between lenth of stem, thickness of fruit, width of abdominal and spinal partition, seeds width and thousand seed mass.

Broad-leaved forests of South Urals Reserve (distribution and structure characteristics)

Authors: Gorichev Y. P., Davydychev A. N.

Data on the phytocenosis distribution and structure and the stands of trees composition of some associations of broad-leaved forests of South Urals Reserve are presented.

Pollen anomalies in scots pine under different ecological conditions

Authors: Kalashnik N. A.

Pollen anomalies in Scots pine (Pinus sylvestris L.) were studied under different ecological conditions. The results obtained testified to an adverse effect of technogenic pollution on the grain quality in Scots pine. The comparison of anomaly/fertility values using χ2-criterion revealed the significant differences between the test plots located under contrasting ecological conditions. The cytological method applied is considered as a very sensitive one for the assessment of the influence of unfavorable factors on Scots pine ecosystems.

Heavy metals accumulation in different varieties of annual lupin in botanical garden

Authors: Kudrjashova V. I.

The work is devoted to the determination of heavy metals accumulation in different varieties of annual lupin according to the content of the given metals in soil.

The investigations of heavy metals were conducted on the following varieties of an annual lupin – Dikaf I, SN 40\9, Nemchinovskij 846, Zhemchug, Narrow–leaf 109. The botanical garden soils taken at the places of lupin growing have been also studied. As a result of our investigations it was established that the content of Pb, Zn,

On the resource stock plants Helichrysum arenarium in Saratov region

Authors: Mashurchak N. V., Kashin A. S.

Studied the resource supply of medicinal plant resources flowers Helichrysum arenarium in the Saratov  region.  It  is  shown  that  the  Saratov  region  is  suitable for industrial preparations of plant material. Calculated regression equation for determining the operating margin herbal flowers Helichrysum arenarium, which minimizes the damage caused by the populations of plant species in the assessment   of their productivity.

Changeability and flexibility of some morphological parameters Hypericum perforatum (using the example of the Right-bank area of Saratov region)

Authors: Parkhomenko V. M., Kashin A. S.

The habitat conditions have a considerable influence on habitus of individuals. The most parameters of morfogenesis are flexible (plastic) enough. The Fertility of individuals reduces in the most xerophitic places. In the anthropogenic-tranfomed, upland habitats and in the forests the changeability of the most morphological parameters are less than in the steppers.

The productivity of Solidago canadensis L. (Asteraceae) in condition of Stavropol Height

Authors: Pecshanskaya E. V.

In article adduce results of research vegetative reproductions (part of rhizome), influence of feeding area (0,7×0,2 m2, 0,7×0,4 m2, 0,7×0,6 m2) and planting time (autumn, spring, late spring) to part of rhizome on the productivity receipt plants Solidago canadensis.

Новые памятники природы, предлагаемые для охраны уникальных лесных и дендрологических объектов в Республике Башкортостан

Authors: Putenikhin V. P., Farukshina G. G.

На территории Республики Башкортостан  за  последние  годы  выявлены уникальные лесоводственные и дендрологические объекты, требующие длительного сохранения в форме памятников природы.

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