03.00.00 Biological sciences
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COMPLEX COMPOST AND CIRCULATION OF NITROGEN AND CARBON AT THE AGROLANDSCAPE SYSTEMS
DescriptionComplex compost includes all elements of the periodic table and is valuable due to the complexity of its system. Among the elements forming a chemical composition of the complex compost we can identify two most important, which are distinguishing a specific character of the interaction with each other and defining the basic processes to ensure vegetation of living system - nitrogen and carbon. Nitrogen determines the rate of energy and connects with living forms of organic matter; it is included as the part of protein and is a major element in determining the productivity of ecosystems. At the cycle of carbon its organic forms and carbon dioxide take a part, presenting the main factors of the processes of respiration and photosynthesis
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COMPLEX COMPOST AND DETOXICATION OF AGROLANDSCAPE SYSTEMS
DescriptionToxicity complex compost arises during compiling of organomineral mixtures of various waste of life, agriculture and mineral industries. One of detoxification factors of complex compost is the ability of heavy metal cations to the formation insoluble compounds, which are fixed by clay materials and different disperse systems, and differ markedly by calcium content, acidity and humus soil-absorbing complex
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Description
The article presents the results of a study of microbiological content of the soil after microbial protection of plants. Preparations were obtained by the technology developed by Ltd. "Kuban agrotehnoloogy". We have established the presence of bacteria Azotobacter chroococcum and fungus Trichoderma viride in the soil. Investigation of Trichoderma viride was made with using plant residues. It is proved that the use of microbiological preparations for plant protection have positive effect to improve the microbiological composition of soil. We have substantiated the example of the summary application of Azotobacter chroococcum and Trichoderma viride for plant protection. A number of provisions of the article have a scientific basis of view for the "food chain" microorgaisms. Trichoderma viride enzymatic hydrolysis products are good food source for Azotobacter chroococcum . Azotobacter chroococcum facilitates transfer of available nitrogen for plant nutrition. These microbiological preparatioты were recommended for seed treatment of plants during the growing season and crop residues after harvest. We used such culture media as Capek, Beijerinck and Ashby. Soil samples for research were selected by "Temizhbekskaya" Ltd in the Stavropol region. The study may be interested for agronomists, biotechnologists, mycologists, microbiologists
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Description
Differentiation of temperature influence on embryos at incubation of eggs shows positive results: the output of chickens is synchronized, duration of embryogenesis is reduced, deductibility of eggs raises, the young growth output increases
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EVALUATION OF SELECTION OF TREES OF SALIX ACUTIFOLIA WILLD
DescriptionIn order to identify high-genotypes in natural stands of Sacutifolia Willd we worked to identify the categories of breeding trees. Experimentally proved, that for breeding to increase the productivity of bark of Salixacutifolia Willd the selection would be best carried out with plants, the diameter of the barrel of which is in the range of 9 to 16 cm, tree age 15 - 19 years
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SEGREGATION OF THE PLANT HEIGHT AT INTERSUBSPECIES HYBRIDS OF THE SECOND GENERATION RICE
DescriptionThe article presents the results of the genetic analysis of the trait ‘plant height’ for six crosses involving the forms related to different subspecies of rice. There have been estimated the types of inheritance and a number of genes, which assist to determine this quantitative trait. We have found out that the variance of the trait ‘plant height’ is determined by 3-5 pairs of genes having additive and dominant activities and the degree of dominance reduces in case the variance among parental forms increases. The non-allelic interaction of the genes of the initial forms produces transgressive dwarf and tall forms. The cross ‘Lampo’x’Virazh’ showed the highest degree of transgression in ‘plant height’ due to short height of both parental forms (61.7%), but the frequency of transgression was larger than that of the cross ‘Lampo’x’Komandor’(17.6%). This combination (‘Lampo’x’Komandor’) produced more tall forms (up to 135 cm). The segregation of a great number of tall forms into F2 testifies that the parental forms of these hybrids vary in the allelic state of several pairs of genes, whose various combinations form phenotypes with a longer stem. Thus, the semi-dwarf feature of the varieties ‘Lampo’, ‘Komandor’ and ‘Virazh’ is determined by various non-allelic genes
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PROPERTIES OF FOREST SEED SAMARA, WITHOUT PTERYGOID APPENDAGES, LEGUMES AND WITHOUT PERICARP
DescriptionProperties of forest seeds are the basic and initial data for substantiate technology and technical means constructions, to separate the seeds from the samaras and extraction them from the legumes, and also to substantiate constructive, technological parameters and operating modes of seed-cleaning machines. So far, there are not enough full information about the technological and mechanical properties of forest seeds, this makes it difficult substantiation and developing new technologies and technical means, in particular, to separate the seeds from samaras hardwoods and extracting legumes from the leguminous trees. The article presents the results of studies of technological and mechanical properties of forest seeds with samara and without pterygoid appendages: Norway maple, ash and elm ordinary, as well as legumes: honey locust, white acacia, acacia yellow and pure seed. Were studied: weight of 1000 seeds, volume weight, mass and volume coefficients, angle of repose, the coefficient of static friction and the coefficient of dynamic friction of the various working surfaces, holding strength samaras to forest seeds and strength of legumes pods. The data obtained are used for substantiate technology and technical means constructions, to separate the seeds from the samaras and extraction them from the pericarp
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SANITARY CONDITION OF TREES IN URBAN PLANTINGS (ON THE EXAMPLE OF VORONEZH)
DescriptionThe article presents a comparative analysis of the sanitary condition of green plantings in park area and street network of trees of local forest origin and exotic species
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DUCKWEED – A PERSPECTIVE VEGETABLE PLANT
DescriptionThe questions of use duckweed as green vegetable are considered in article. The structure of types of duckweeds, their biological features, distribution in the world and in the territory of the Krasnodar region is shown. Possibility of their use as biotesters and bioindicators of the water environment, as analytical system for the analysis is shown. Questions of use of duckweed in artificial conditions as well as requirements to the content of culture are considered
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Description
The article presents the results of studying the growth-stimulating activity of the microorganisms of the genus Bacillus of leaf surface microflora arboreal plants in Stavropol. Isolated and identified strains of epiphytic microorganisms of the genus Bacillus with the leaf surface of plants: Quercus robur L., Carpinus caucasica Grossh., Fraxinus excelsior L., Acer campestre L.. Growth stimulating properties of 43 strains of aerobic spore-forming bacteria (Bacillus subtilis, Bac. megaterium, Bac. pumilis, Bac. cereus, Bac. Licheniformis) are researched. Selected strains are potentially promising in the development of microbial preparations for plants. A regional collection of strains of epiphytic organisms was formed