№ 108(4), April, 2015
Public date: 30.04.2015
Archive of journal: Articles count 91, 194 kb
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BIO-DIAGNOSTICS OF RESISTANCE OF GREY FOREST SOILS OF ADYGEA TO POLLUTION WITH Zn, Cd, Mo, Se
Description
The essential part of a soil cover of the Republic of Adygea is occupied by gray forest soils. Thus they still remain a little studied, including concerning their resistance to chemical pollution. Contamination of gray forest soils of Adygea with Zn, Cd, Mo, Se causes deterioration of their biological properties. In most cases, the degree of reduction of the values of biological indicators is directly dependent on the concentration of pollutant in the soil. According to the degree of toxicity to the biological properties of the investigated elements form the following sequence: Se > Zn > = Cd > Mo. Biological parameters investigated in research (activity of catalase and dehydrogenase, cellulolytic ability, abundance of bacteria of the genus Azotobacter, radish root length) may be used for purposes of monitoring, diagnosis and regulation of chemical pollution of gray forest soils Zn, Cd, Mo, Se
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Description
In herbaceous communities of annual crops dominate clean sowings, which are characterized by high productivity. However, it is very poorly adapted, different weak transformation of matter and energy and stronger exposed to stressful situations as compared to natural systems. In agroecosystems only structural diversity can supporting many processes on a much aligned level. In agrolandscape system creates mixed sowings that are practiced in forage production of many areas. Great importance is the selection of crops for joint sowing because the relationship of species in created systems are poorly investigated and documented in the literature is not enough. Investigations were carried out on experimental plots on the farm called "Zavety Ilyicha" of the Leningrad district and training farm called "Kuban" in Krasnodar. Formation of joint sowings in different moistening conditions, level of fertility, chemical and physical condition of the soil is a very big problem. Cultivation of different cultures in joint sowings significantly influences the terms the onset of main phases of vegetation in certain species. For example, the placement of sorghum between rows of soybean noticeably extended the period of its vegetation (5-7 days); acceleration of interphase periods was marked for amaranth; height of plant noticeably was changed, leaf area was varied, indicator of competitive features of individual species was differed. The existence of the relationship between the method of sowing crops, their farming practices and composition of species and population of microflora, mesofauna of soil, yield of dry matter and grain was observed
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VISUALIZATION OF THE SPACE OF INITIAL EXCITATION AREA IN SINOATRIAL NODE OF THE CAT,S HEART
Description
The article describes the visualization of the space of initial excitation area in sinoatrial node of the cat’s heart
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INFLUENCE OF FRUITLESS SHOOTS ON QUANTATIVE TRAITS OF GRAPES AND WINE OF SAPERAVI VARIETY
06.00.00 Agricultural sciences
Description
In this study we have shown the influence of fruitless shoots to number of berries in clusters, the mass of 100 berries, average weight of the bunch, yield, sugar content and acid in the juice of the berries, the quality of wine. These indicators have been studied at a ratio of fertile and sterile shoots 1: 1, 3: 1, 6: 1 with a load of bushes 12, 16, 20 fruit-bearing shoots and nutrition area 3 x 1 m2. Control was a natural balance of fruit-bearing and barren shoots. Digital material is processed by one-way analysis of variance experience for each load of bushes, and then the same method of two-experience for all the options. Fragmentation of sterile shoots with load of 12 fruit-bearing shoots per plant decreases, and with loads of 16 and 20 increases the number of fruit-bearing shoots berries in clusters, the mass of 100 berries, average weight of the bunch, yield, and sugar content in berries. For the content of titratable acids we have marked a tendency to increase with a decrease in the number of sterile shoots. The content of phenolic substances on the variants of the experiment was 2.2-2.3 g / dm3, the acidity of 7.3-7.8 g / dm3, alcohol 10,2-10,9% vol. Dry wines tasting score on the options was in the range of 7.4-7.6 points. Significant difference in taste and smell features wines by variants of the experiment was not revealed. Conclusions on the effect of sterile shoots on fruiting vine indicators drawn from the analysis of variance one- and two-factor experiments, in most cases were the same
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06.00.00 Agricultural sciences
Description
The key stage of clonal micropropagation, the micropropagation sensu stricto, affords to increase the propagation index for plants, especially perennials. In this study, we consider ways to optimize clonal micropropagation of remontant raspberry cultivars. It is found that microsprout regeneration rate is 78,5–96,0 % on the multiplication s. str. stage. The most multipurpose nutrient medium is selected with containing 0,5 mg/l both of BAP and GK. When one uses this medium, regeneration rate runs 79,0–94,0% depending on genotype with sprout high running 24,8–32,7 mm and sprout number – 1,2–2,2 per node. The optimal duration of growing cycle is 30 days with the propagation index within 6,6–7,8, depending of genotype
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Description
This article is devoted to treatment effects of cuttings of a grape variety called Moldova with 0.01% solution of heteroauxin on their regenerative capacity, depending on the light conditions. We have established that the germination of cuttings in the dark, as well as the treatment of heteroauxin significantly stimulate their regenerative abilities. The length of the shoots, regardless of the use of heteroauxin, depends on the mode of the light produced during the germination of cuttings. In both studies, the length of the shoots on the end of experiment cuttings germinated in the dark, was 1,71-2,66 times more than when germinated in the light. Cuttings rooting ability also largely depends on the light produced in their germination. In both studies, the rooting of cuttings started earlier and passed more rapidly during their germination in the dark. Processing cuttings with heteroauxin, followed by germination in the dark, speeded up the formation of roots even more, compared with the case where the cuttings treated with heteroauxin germinated in the light. In the best case rooting increased by 42,5-47,5%, the number of roots on basal ends of cuttings in 18,3- 18,5 times, the numbers of cuttings with 3 or more roots to 72,5-80,0%
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Description
Communicative tolerance is connected with many properties and spheres entering the structure of a personality. We have selected such ones which are influenced by the level of communicative tolerance. They are intellectual, valuable-orientation, ethic, esthetic, emotional, sensory (perceptional), energetic-dynamic, algorithmic, characteristic and functional spheres of a personality. These personal factors concerns to the pivotal one determining the life way and activity of a person, its professional condition, activity in promotions of the carrier, execution of professional duties, interaction with colleagues and surrounding people. The manifestation of the mechanism of psychological emotional expression of personal differences of communicative differences of communicative tolerance allows singling out such types as (situational, typological, professional, general communicative tolerance) which are possible at communication with the manifestation of definite behavior signs and moods. The communicative tolerance influencing the personal factors of a student-manager, touches intellectual, valuable-orientation, ethic, esthetic, emotional, sensory (perceptional), energetic-dynamic and functional spheres. The development of communicative tolerance in the process of training of foreign language by students-managers allows to single out the levels of communicative tolerance (low; intermediate (upper-intermediate and pre-intermediate) and work out methods and ways increasing the tolerance behavior embracing the spheres of a personality of a student
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INFLUENCE OF REFRACTORY FILLERS ON THE PROCESS OF COMPOSITE BRAZING OF DIAMOND-ABRASIVE TOOLS
Description
Brazes with increased viscosity are needed for brazing of abrasive diamond tools with working surface of complex contoured shape. It’s known that high viscosity is a property of composite brazes consisting of fusible matrix and refractory filler that is not melting during brazing. Goal of the work is to research the influence of refractory fillers on the process of composite brazing of diamond-abrasive tools and on that basis discover the optimal composition of braze. Composite brazes Sn-Cu-Co were researched in the work. It is determined that at least 26-28% (by mass) of cobalt powder should be included in brazes for giving the braze Sn-Cu-Co necessary viscosity and for creation of uniform diamond-comprising layers with thickness up to 2.5 mm on the vertical layers and sharp edges of tools. It is determined that solid-state sintering of powders on the initial stage of heating the composite braze leads to emerging of internal stresses and forming cracks. Inert additions that prevent solid-state sintering should be include in braze to prevent cracking. Optimal inert addition for brazes Sn-Cu-Co is the tungsten powder. Minimum content of tungsten needed to prevent cracking is 6% (by mass). Optimal content of components in composition braze for brazing shaped diamond-abrasive tools is (% by mass): 30 Co, 20 Sn, 43 Cu, 7 W
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CHALLENGES TO CONTROLLING IN THE MANAGEMENT OF THE HEAD OF THE CORPORATION
Description
Management is considered as a service providing value creation in the corporation. Improving the quality of management and the formation of its competitive advantages is a priority. Controlling has a significant influence on the quality of management. However, for its implementation it is necessary to form the need to the head to establish a system of information - analytical management support. The survey of CEOs identified the lack of sustainable demand for controlling. The main source of the challenge for controlling is corporate executive. The reason of the lack of significant challenges to controlling lies in the existing system of management of corporations and, above all, in the person of the head. Formal and informal management as two complementary approaches, the components of the success of the head - the leader, the key characteristics of managerial behavior of the head and needs for intelligent management services were discussed in this article, a new concept of controlling as the management of intellectual service was offered
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GENETIC PECULIARITIES OF SYMMENTAL LIVESTOCK DROPPED OFF INTO FARMS OF THE KRASNODAR REGION
06.00.00 Agricultural sciences
Description
Farms of Krasnodar region purchase cattle of milk, combined and meat direction of productivity. Imported cattle are accompanied with documents which differ from analogous ones specified in such cases by pedigree service of Russia. There were studied 1000 heads of symmental cattle of milk-meat direction of productivity imported from Austria. More than 5000 kg of milk can be obtained from cattle of symmental breed of milk-meat direction of productivity, except it they show enough high meat productivity. The analysis of accompanying documents on purchased cattle is joined not only with language barrier but with the lack of knowledge of adopted abbreviations, contractions and other attributes used by foreign breeders abroad. Having studied the accompanying documents connected with hereditary information of purchased cattle there was determined that imported heifers and their mothers were obtained in Austria, and mothers of bulls on 55,5% obtained in Austria and 41,6% in Germany. So, on formation of imported micropopulation of cattle greatly influenced the breeding school of Germany. In accordance with the adopted classification in Austria due to revealed cases of adoption of Holstein blood, there is a ground to consider the present herd as a belonging to the group of pure breed of symmental cattle and in prospect to conduct the mating of cattle with pure breed symmental oxen with the aim of absorption of mixtures of Holstein blood in pedigree. The researches determined that one can purchase the producers with characteristics of milk productivity at daughters of oxen not lower than Austrian indexes on voluminous milking and German – on milk quality, the purchase of symmental cattle from other countries must be subjected to this demand.
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