06.00.00 Agricultural sciences
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THE SEARCH FOR NEW SUGAR BEET IMMUNOMODULATORS AMOND PYRIDYLHYDRAZONE DERIVATIVES
06.00.00 Agricultural sciences
DescriptionIn order to find compounds that increase sugar beet resistance to the adverse effects of herbicides, a series of pyridylhydrazone derivatives have been synthesized. The protective effect of new compounds for the herbicide mixture Betanal, Lontrel and Super Zeleke was studied in field conditions. The effect of pyridylhydrazones on the synthesis of photosynthetic pigments in leaves was investigated. Substances with a high protective effect were found
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SUCCESSFUL APPLICATION OF SIGNS OF HEAT INDEX IN MAKING PROGNOSIS FOR EMBRYO DONOR COW PRODUCTIVITY
06.00.00 Agricultural sciences
DescriptionThe researches of the quality of 34 donor cows estrus detection during superovulation induction period, after Pg F2α injections were carried out. The clinical heat index was set up and applied. The clinical heat index is clinical prognostic criterion of successfulness of superovulation induction and embryo productivity. It was shown that donor cows showing signs of oestrus during 48-72 hours after Pg F2α injections had the best embryo collection qualities while certain increase of degenerated or aborted embryos and unfertilized oocytes is determined in embryo collections from cows showing signs of oestrus before or after that period
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THE GROWTH AND PRODUCTION ABILITY OF SHOOTS AT DIFFERENT VARIANTS OF CUTTING FRUITBEARING VINES
06.00.00 Agricultural sciences
DescriptionThe article presents the results of studying the impact of different options for cutting fruit vines on the growth and productivity of shoots of the grapes. The obtained experimental data indicate the excessive overload of vines with eyes and shoots when performing contour trimming bushes without normalizing the choice of shoots, in comparison with other variants of experience. A significant increase of eyes on the vines when performing contour cutting was because during this method of cutting, the cutoff is at a certain level all the shoots are horizontal on the arm vines. A big load of vines shoots when performing contour cutting has reduced the length of shoots at 48 – 51%, and leaf area developed on the shoots of 53 – 54%. While the lowest productivity was different shoots developed on the vines in 3 variant, because here the contour cutting vines was not accompanied by a subsequent breaking of superfluous shoots, which have overloaded the bushes shoots. At the same time, contour cutting vines with subsequent breaking of the normalizing excess shoots were allowed to grow for fruiting the bushes a sufficient amount of normally developed shoots with high productivity and good quality bunches
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MILK PRODUCING ABILITY OF HOLSTEIN COWS OF VARIOUS ECO-GENETIC TYPES
06.00.00 Agricultural sciences
DescriptionThe article presents the comparative assessment of economic traits of Holstein cows of various ecogenetic types in the Volgograd region, the Russian Federation. The study of adaptive ability of Holstein cattle imported from the United States (245 heads), Denmark (245 heads), Germany (386 heads), and Australia (250 heads) has been carried out based on breeding plant OOO "Donskoye" in Russia since 2006. The milk producing ability of the animals was studied during the period of first three lactations. The cows imported from the United States showed the maximum productivity. The cows from the USA and Germany were registered to have the highest fat content in milk. The mathematical modeling for predicting production processes revealed that with respect to the milk yield, the Holsteins of Danish selection were superior to the cows of American, German, and Australian selections by the fifth lactation. The high correlation between the milk yield and the body weight, as well as between the body weight and the fat content of milk from Holstein cows of various selections has been established. The cows of Danish, German, and Australian selections showed a positive correlation between economic traits and genetic parameters for the period of three lactations. The cows from Australia have been proved to have higher indices of protein composition of milk (the total nitrogen content, the amount of essential amino acids). The level of the adaptive ability of the animals of the same breed but different eco-genetic types has been found to be stable
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IMPROVEMENT OF WAYS OF FRUIT TREES WATER SUPPLY
06.00.00 Agricultural sciences
DescriptionNowadays, fruit trees are subjected to influence of abiotic stress-factors. The reaction of fruit plants on the influence of media plays an important role. Experiments were conducted in two (Northern and Central) fruit zones of the Krasnodar region since 2013 to 2015, there was shown the possibility of application of hydroabsorbents as a stable source of water supply of fruit trees in specific natural conditions of the South of Russia in the conditions of field experiment. There were shown the peculiarities of technological ways of water supply of fruit trees in specific natural conditions of the south of Russia. There was determined that the necessity in watering of a garden’s plots with the use of hydroabsorbents Ecogel-1 and Ecogel-2 with the supporting of soil’s moisture in 80% in Northern zone in the end of May, in central fruit zone in the middle of May. There was proven that the application of hydroabsorbents Ecogel-1 and Ecogel-2 guarantees the stable water supply in limits of 75-80% from NV since planting in apple-trees of varieties of Renet Simirenko and Golden Delicious grafted on the stock M9 and planted on the scheme 4,0 х 1,0 м during three years. The work of the system of “soil-roots-leaves” independently on weather and soil conditions is provided
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THE INDICES OF REPRODUCTION IN THE HERD OF MILK CATTLE IN “KUBAN” AGRICULTURAL HOLDING
06.00.00 Agricultural sciences
DescriptionThe article contains complex research results dedicated of reproduction the cattle of the animal breeding industry in the agricultural holding called “Kuban”. Key indicators characterizing reproductive function at cows were set; they were estimated in terms of the plans of the economy in the milk cattle breeding industry. The reduced values of the birth-rate of calves were revealed on 100 cows and in the term of the production use of cows, their main reasons were set. The performed calculations prove the possibility of increasing the profitability of milk production
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INFLUENCE OF DURATION OF THE FIRST LACTATION PERIOD OF SOWS ON REPRODUCTIVE QUALITY
06.00.00 Agricultural sciences
DescriptionThe article contains research results on the influence of duration of the first lactation period of sows on reproductive qualities. The authors have detected basic problems which reduce indices reproduction of purebred pigs of the breed of Yorkshire and hybrids of F1 (Yorkshire x Landras) under conditions of a new complex. It was found that because of the increase in duration of lactation period of the sows it is impossible to increase the safety of the piglets with a reduced live mass (from big nests and slow in growth) and improve the reproductive quality of sows. This method has been used in the economy what led to a notable improvement in the indices of pig breeding
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THE SHORTAGE OF WINTER WHEAT GRAIN CAUSED by P. triticina
06.00.00 Agricultural sciences
DescriptionThe article studies the influence of the interaction of two technologies of plant protection: breeding- immunological and chemical. The studies were conducted on the varieties and lines of soft winter, durum wheat and triticale, established in Krasnodar research institute named after P. P. Lukyanenko, and also, on varieties of an alien and foreign selection. When considering the correlations in the group of genotypes, forming a necrotic type of reaction to the introduction of the pathogen (the first group of varieties), the significant negative correlation (r - 0,76) between the change in the mass of 1000 grains and the number of unproductive stems formed by one plan was established. The model of the severity of brown rust pathogen in sparse crops of wheat has been collaborated. According to the model, the development of the pathogen in the tissues of the leaves of the host plant leads initially to a change in the relations of the productive and unproductive stems. The change of these parameters significantly affects on the variability of indicators such as the mass of grains from one ear, number of grains per ear and 1000 grain weight. Negligible volatility of weight for 1000 grains suggests that the major losses of productivity in the flowering stage are due to abortive flowers. This model can explain the increase in the mass of 1000 grains in some varieties for tolerance change experiments with the defeat of plants of P. Triticina on micro-plots
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06.00.00 Agricultural sciences
DescriptionThe created hybrids with new lines and testers were studied in 2014-2015, in the conditions of the central zone of the Krasnodar region and the Central Black Earth Region (Voronezh and Belgorod regions). As a parent forms for selection of early ripening and Medium early corn hybrids there were used lines of various groups of ripeness of the ident heterosis group: Kr 714 Kr 740 Kr 757 Kr 651 Kr and 602. All of these lines had high combining ability, and the line 602 Cr was used as a donor for a quick return of moisture from the grain when ripening. With the participation of the lines from the collection of the Institute and the donor line, we have created four hybrid combinations on the basis of which, the selection was received by the five-year selection of new source material for breeding new hybrids of corn. The assessment of comutiny capacity of new lines was performed using a linetesters of the genetic institute collections of 721MV Cr, Cr 801MV, Kr 654 Kr 244MV, Cr 602MV, Kr and Kr 802MV 752. Lines testers were represented by a heterosis group of Lancaster, Stiff Stalk Synthetic and wide lines with a genetic basis. According to the guidelines of the State strain testing of crops, and as a result of the field experiment, we have calculated the energy savings for new early maturing corn hybrids in comparison with the standard ones. Saving energy for equivalent fuel from new hybrids of corn comparing to the standard for 1 ha of crop was due to their grain productivity and varied depending on the conditions of the Voronezh region from 81.4 to 101.5 kg, in the Krasnodar region it was 79,0-97,9 kg
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STUDY OF SOIL WATER REGIME ON VINEYARDS OF ANAPA - TAMAN SUBZONE
06.00.00 Agricultural sciences
DescriptionOne of the limiting factors to obtain high yields of grape plantations in Anapa-Taman subzones with good quality is moisture. Grape plant adapts well to a limited amount of moisture in the soil. The penetration of roots deep into the soil horizons may reach 5-6 meters, provided with a moderate density of the soil and the lack of limiting factors such as the presence of ground water and limiting the content of toxic soluble salts. In the course of mathematical data processing we have established a trend of increasing average annual rate of precipitation in the period from 1932 to 2015. In the years when the amount of precipitation for the year exceeds the average long-term performance, the key amount of precipitation in the summer months in a downpour and in a limited area. Average annual amount of precipitation in the period from 1932 to 2015 was 519 mm, the minimum was recorded in 2002 (324 mm), the maximum - in 1981 (800 mm). Despite the general trend of increasing average annual rainfall over the years, moisture deficit is in the soil. Accounting of moisture saving dynamics in the soil in the 2015-2016's indicates the absence of moisture reserves. Optimal soil moisture values were observed only in May and June, and only half meter layer of soil. In the phase of growth and ripening berries (July, August, September) soil moisture content was much lower than the permissible value, which is comparable with the level of wilting point. For the stable-quality grape raw materials it is necessary to pay more attention to the water and the air regime of the soil