Peach fruit is much demanded worldwide. The
success of its cultivation depends on the optimal
plant placement of all the huge biodiversity
considering the cultivar demands. The northern
boundary of the peach cultivation passes through the
Kiev-Kharkov-Rostov-on-Don, Maikop, Nalchik,
Grozny, Astrakhan (Witkowski, 2003). However,
because of extreme temperatures there are almost no
suitable areas for Peach crop cultivation in these
borderlands, in the Krasnodar and the Stavropol
regions. From the other hand, extreme temperatures
for peach cultivation in the humid Russian subtropics
were not observed. Spring frosts till -5 ° C were
observed in 2004, 2014. However, the cultivar
productivity in the region influenced by the duration
of low temperatures (7,2 ° C and below) that were
observed from December to March. The amount of
low temperatures for each cultivar was established
using the highest coefficient of yield determination,
depending on the temperature, amount of
precipitation and the "cooling unit." The yield of
peach cultivars is closely linked with the abovementioned
agro-climatic conditions during the
flowering period. Paired correlation coefficients of
yield with precipitation and with temperatures (for
most cultivars) were negative, and since they are
unregulated value, the flowering phase is crucial for
peach culture in the Russian subtropics
A comparison of quantitative and qualitative performance of the selected clones of breeding of A.S. Yablokov and S.N. Bagaev has been made. At the same forest conditions, the clones are much higher than regular at reserves, the absolute completeness, the average heights and diameters of trees. Gigantic forms of P. tremula L. are resistant to infectious diseases, and at the fifth grade are characterized by good sanitary condition. We have also shown the economic feasibility of using of fast-growing clones in the genetic reserve for the organization of giant aspen of P. tremula L. plantation
Grape variety assembly lines by zones of Krasnodar region worked out by the staff of the chair of grape growing on the basis of many years data and with
an account of really existing areas of every variety
by the end of 2007 have been presented in this article.
Assembly lines allow to plan more balanced entering of grape production to the processing enterprises
or to a consumer market.
В статье изложены результаты исследований влияния в рационах цыплят-бройлеров новой кормовой добавки на основе L-аспарагиновой аминокислоты содержащей в своем составе железо, цинк, медь и марганец в органической форме на продуктивность и содержание этих микроэлементов в грудных мышцах и помёте
The sort of Artemis is created as a result of the Greek-Russian scientific creative cooperation, it is breed in Greece P.Zamanidi and L.Troshin in 2003, by mating of the Greek sort of Kondokladi with Traminerom pink introduct. Duration of rule-oriented phase is 146-155 days. Productivity is high. The medial mass of a racemation is 140gr. Differs the raised sustainability to fungous diseases and a drought in comparison with Vitis vinifera sorts. A flower is bisexual. A racemation is small, cylinder-conic, a medial denseness. A bacca is small-medial, circular, greenish-yellow, with a dense wax coating. A peel is tight. Pulp and juice with the expressed high quality flavor. Sugar content is high. The sort of Artemis on morpho-physiological performances is referred to the West European ecological geographical bunch. The sort is designed for production of dry white wines of the excellent class, and also for high-grade dessert and sweet wines; it is applicable for development of high-grade juice, compotes, grape honey as well
In the article review of data about yearly change-ability for the scope of grain production in Russia and variability of crop capa¬city under irrigation and without it is given. Theoretical substan¬tiation of the part of irrigated area for ensuring sustainability of grain production in arid regions is suggested
The article examines the creation of the expert system
in the development of epiphytotics in winter bread
wheat sowing. Increasing the accuracy of the forecast
epiphytotics should be based on the improvement
forecasting of move daily temperature (minimum,
maximum and average). In this case, the calculation
algorithm must not be cumbersome. In the algorithm,
there are indicators of cyclical annual variations of
temperature, i.e. the change in average daily
temperatures for the year. For the treatment method of
local forecast of daily average temperatures during the
year used data of meteorological station for 9 years.
Having considered the main issues to epidemics of
brown rust and its influence on the production of
wheat cenoses, you can proceed to the modeling expert
logic. The analysis includes the following indicators:
cultivated variety; agricultural machinery (predecessor,
fertilizer, pre-processing, and others.); general
condition of sowing; phase of plant development at the
time of the field survey; date of onset of the disease (if
selected); prevalence of sowing at the time of
observation. Installed that the purposeful creation of
varieties of winter wheat resistant to the pathogen, it is
necessary to carry out environmental testing stability
as a latent breeding and recommended sources and
sustainability of donors, which will allow to plan
economic occupancy resistant genotypes of winter
wheat
The algorithms of estimating breeding value, allowing increasing its accuracy several times are developed on the basis of establishment of the selection characteristics of existing selection criteria and the definition of the coefficient
The article reflects the results of the scientific research on creation and implementation of applications in industrial conditions of livestock enterprises of the country. The staff of the laboratory of the development of theoretical bases of selection of animals of Don SAU has created the selective cross-breeding information filter “SIF”. The system is constantly updated with new programs. The analysis of the information accumulated in the system allows to develop the recommendations, to make operational decisions and correct selection of the program
The efficiency of mineral and bacterial fertilizers ap-plication for various agricultural crops (watermelon, soy bean, millet and potato) is investigated in the Rostov region. We established the bacteria stocks un-der each culture, allowing to receive the greatest in-creasing of productivity, both on a natural background of fertility, and in a combination with mineral fertiliz-ers: for soy bean - 626а, watermelon - Azorizin-8, millet - Azorizin-6, potato - 18-5. The optimum com-binations of mineral and bacterial fertilizers for each culture are established