06.00.00 Agricultural sciences
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06.00.00 Agricultural sciences
Description
The value of the initial material for selection for heterosis is primarily defined by the combining ability in respect to the main economically valuable characteristics. Combining ability with respect to “grain productivity” has been studied among fourteen selfpollinated lines of maize of early ripening and three testers in the system of hybrid combinations. We have proved that weather conditions have an influence on the variability of the estimates of the combining ability. We have identified the new self-pollinated lines of maize SP 165 and SP 175, which are characterized by invariably high evaluations in the effects of GCA (gi) in different years. The new self-pollinated line SP 167 has got high variants of SCA (δ2si). The new lines SP 161, SP 163, SP 167 and SP 174 have been characterized by the variability of the evaluations in the effects of GCA. They are related to the first or second rank in respect of GCA, depending on the year of the conducted evaluation. These are SP 163, SP 164, SP 170, SP 171 and SP 173 that have differed by their variability of the variants of SCA (from the low variants to the high ones). The highly productive testcross hybrids: Madonna M × SP 165 (4.88 t / ha), Madonna M × SP 171 (4.85 t / ha), Madonna M × SP 167 (4.80 t / ha), T 7M × SP 165 (4.78 t / ha) have been obtained based on the self-pollinated lines having invariably high figures of GCA and SCA
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PRODUCTIVITY OF WINTER BARLEY IN LEACHED CHERNOZEM CONDITIONS OF KUBAN
06.00.00 Agricultural sciences
Description
The article discusses the various technologies of cultivation of winter barley at two ways of main tillage (recommended and zero-level) with different backgrounds of soil fertility, fertilization rates, protection from weeds, pests and diseases. Consistent improvement of soil fertility and other fertilizers resulted in an increase in crop productivity. Nutrition is the basis of life of a living organism, including plants. The value of crop yield and its chemical composition depend on the conditions of nutrition. It is achieved with the optimum combination of light, heat, air, water, food, etc. In this connection, in the development of methods of cultivation of this crop, we may not only increase the yield of grain, but also pay due attention to the quality of cultivated products. Thus, studies in the experiment showed that the intensification of cultivation technology of one phenomenon substantially and significantly affects the productivity of the given culture
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RESOURCE-SAVING APPROACHES TO THE POULTRY FEEDING
06.00.00 Agricultural sciences
Description
The experiment studied the use of an herbal component in feeding of young geese, consisting of hay meal and alfalfa juices coagulate. The replacement of 50 % of complete feed by the studied feeding stuff reduced the protein content in the diet by 9.9-14.9 % and increased the content of crude fiber 1.76-2.01 times. Gross weight gain in the experimental group decreased by 3.9 %, with an increase in feed cost by 17.1 %. However, carcasses of geese in experimental group increased absolute weight of muscles of the breast and legs by 28.6%, and the relative – 5.6 % (Р˃0.05). Using of herbal ingredients tended to increase the yield of dressed carcass by 4.8 %, while the share of internal fat and skin with subcutaneous fat was decreased. There were no differences in the chemical composition of poultry muscle tissue in the groups. Using of herbal ingredients decreased the cost of 1 kg of feed by 0.7 rubles, but the cost price of weight gain increased by 5.0 %. It was concluded that it is necessary to carry out additional studies involving the feeding of poultry with the identical by nutritional value compound feed with the additive under study or without it
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HEMATOLOGICAL PARAMETERS OF PIGS WHEN USING YAKON TUBERS AND ADSORBENTS IN RATIONS
06.00.00 Agricultural sciences
Description
Under the current conditions, it is very important to boost the production of pork and improve its sanitary and hygienic quality for the successful handling of problems subjected to import substitution of meat products. This can be reached by means of strengthening of food reserve. For that purposes, in the frame of two experiments yacon tubers in combination with enzymatic agent protosubtilin GZx have been introduced in the intakes of fattening pork stores instead of fodder beat, and various doses of carbitox adsorbent have been additionally added when superfluous background of heavy metals was observed. During the 1st experiment, the substitution of fodder beet with the similar quantity of yacon tubers has allowed the animals of experimental group to outweigh the ones from the control group on 7,5% in the terms of gross formation of body weight, and to gain 100 kg of body weight for 7 days ahead of the animals from control group as well. Additionally, fodder costs per product have been reduced and the morphological and biochemical values of animals blood have been optimized. Based on the data from 2 nd experiment, it has been defined that the better dose for feeding of adsorbent carbitox was 2,0 kg per tonne of concentrates thereby the animals of 3rd experimental group had reasonably higher body weight gain and thereby higher feed-conversion ratio by products. Therewith, the animals intermediary metabolism has been speeded up due to optimization of morphological and biochemical values of blood and reduction of heavy metals content in blood serum, in other words level of zinc, lead and cadmium was not exceeding maximum allowable concentration
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06.00.00 Agricultural sciences
Description
This article summarizes results of the research on the assessment of soil erosion effectiveness of crops and the rationale of the practical application of phytomeliorative actions aimed at improving the erosion resistance of slope lands. We have obtained values of the resistance of soils to erosion under agricultural crops and in terms of pure steam and calculated the indicator of the efficiency of soil conservation crops. The tests allowed differentiating the crops on well, poorly and very poorly in protecting forest soils from erosion
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SELECTION OF NEW SELF-POLLINATED CORN LINES FOR BREEDING OF EARLY MATURING HYBRIDS
06.00.00 Agricultural sciences
Description
The article covers the stages of evaluation and selection of new self-pollinated corn lines. The results of testing of new lines and test crosses were reflected. Comparative analysis of yield of the best test crosses was presented. General and specific combining ability of new lines was calculated. The opportunities of further usage of new lines in breeding programs and early maturing hybrids including these lines are considering. The researches were conducted on the field of the institution, following the course of scientific researches of department of selection and seed management of corn, Federal State Budgetary Scientific Organization Krasnodar Lukyanenko Research Institution of Agriculture
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GROWTH, DEVELOPMENT AND YIELD OF WINTER BARLEY IN THE CENTRAL ZONE OF THE KRASNODAR REGION
06.00.00 Agricultural sciences
Description
The article deals with a combination of different methods of cultivation of winter barley on the background of plowing, and their impact on growth, development and crop yield. The main technological factors allowing implementing the biological potential of culture are adaptive variety, quality seeds, predecessors, sowing and harvesting, fertilizer, soil fertility, crop care, including protection from weeds, pests and diseases. Barley is the culture of versatile use, which is grown for food and feed purposes. Intensification of cultivation methods of this phenomenon is essential and significantly affects the grain yield of this crop. Under the natural fertility of the soil and favorable weather conditions for black earth of Kuban it is possible to get 3,0-3,5 tons per hectare of winter crops of grain, and this requires the creation of an optimal diet, because one of the main factors affecting the productivity of field crops, including one phenomenon are fertilizers. In addition, the level of soil fertility and protection system of weeds, pests and diseases has great importance. Since these types of issues are relevant for agriculture, we have carried out studies to identify the optimal combination of different methods on growth, development and productivity of a single phenomenon
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PHYTO-SANITARY CONDITION OF CROPS OF WINTER BARLEY WHEN GROWING USING DIFFERENT TECHNOLOGIES
06.00.00 Agricultural sciences
Description
The article presents the biennial data on infestation of winter barley infected with his disease and pests, depending on fertilizer rates, the main method of tillage and plant protection. Weeds are one of the most highly potent factors that reduce the productivity of plants. System of agronomic plant cannot increase the productivity of plants, if it contributes to impurity of crops. In the studied years, the most common weeds at the recommended tillage were dead nettle, cleavers, chickweed, field bindweed. At zero processing - foxtail, poppy, wild oats, Leptospermum, dead nettle, veronica. The use of biological and chemical plant protection products reduced the degree of expansion and development of disease
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06.00.00 Agricultural sciences
Description
The most important component of current assets of the agricultural organizations are material stocks. The optimum quantity of them is necessary for production process. The special aspects of formation and using of material stocks in crop research on micro- and meso-levels are considered in the article. It is established that the stok of fertilizers, crop-protection agents, seeds and planting material are exposed to considerable amplitudes of fluctuations during the different periods of year. The natural and biological cycle of development of plants needs of concentration of material stocks at the beginning of a production cycle that causes the necessity of attraction of the credits and commercial loans. The author studied material inputs structure in branch of crop research in Krasnodar region and its change in dynamics. The leading role of mineral fertilizers in formation of cumulative material inputs is revealed and the level of its production in the region is analysed. The researching character of the article is confirmed by the calculations and the analysis of legislative documents regarding recovery and increasing of soil fertility in Kuban region. The author emphasizes need of strengthening of the state intervention in price control in the market of mineral fertilizers, formations of sales system, aimed at minimization of dealers number in a chain "production – processing – consumption"
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IMPLEMENTATION OF POTENTIAL PRODUCTIVITY OF THE OLD VARIETIES OF WINTER WHEAT
06.00.00 Agricultural sciences
Description
In the article, we discuss issues of morphological and physiological control over plants of winter wheat. As the object of the research, we have selected landraces - the population of winter wheat, which was grown on the territory of the Kuban region in the last century. The aim of this work was determination of the effect on the reproductive system of winter wheat varieties of factors such as conditions of cultivation and processing "Cecece 750" 1.5 l/ha D. V. crop retardant. To achieve this goal we have conducted a morphological analysis of the growth cone at the VI stage of organogenesis, which provide quantitative evaluation of potential future seed production of spike of winter wheat. To study the effect of the year of breeding on the reproductive system of winter wheat varieties the analysis of variance was calculated according to the scheme 3×7 factorial variability characteristic due to the influence of genotype (factor B), cultivation year (factor A), that is repeated in time is interpreted as the effect of the year conditions of cultivation. The influence of retardant on the reproductive system of winter wheat varieties was conducted using the analysis of variance on the above described scheme, 2×7, where the factor "A" is presented in two gradations (options, retardant treated and not treated), in this case, repeated for years was excluded as a factor. The result of researches indicates that the rate of realized productivity is variety-specific and can serve as a measure of the flexibility of the studied cultivars to different environmental conditions. The analysis of variance showed significant retardant effect on the realization of potential productivity in all variants of the crops of soft winter wheat. The comparison of the average general population indicates that the genetic potential of tall varieties may not manifest even in favorable for crop cultivation. The artificial reduction of plant height by inhibiting the growth of retardant is an effective way to identify high productivity of these genotypes as varieties of winter and Nemenchinskaya Old No. 346
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