At present, the farmers have to develop varieties and
hybrids, which fully meet the requirements of
agricultural production. The study of correlation among
economic-valuable characteristics of grain sorghum is of
great importance nowadays, as it allows optimizing
plant-breeding work at its early stages. For a more
productive process of developing of the initial material in
breeding, it is necessary to determine the correlation
among the traits to identify the strongest connections,
and to conduct further work, based on the obtained data.
Knowing the correlation, the estimation of timeconsuming
economic trait can be replaced by the
assessment of the simpler trait correlated with it. The
article presents the analysis of correlation among various
traits of grain sorghum. The degree and direction of the
correlation have been estimated. The significant effect of
the length of vegetation period on many traits has been
seen. There have been also mentioned the characteristics,
having an influence on a size and a number of kernels
per panicle. There is a positive correlation between a size
of panicle and dimensions of a leaf (length, width).
Along with it there has been found a positive correlation
among linier dimensions of a panicle, length and width
of a leaf, a number of leaves with a number of kernels
per panicle. While studying the correlation between an
extension of a panicle with other traits, there has been
noted a negative correlation between a length of
vegetation period, length and width of a leaf, but there
has been found a positive correlation with plant height. There has been found a positive effect of 1000-kernel
weight, a number of kernels per panicle, a number of
leaves and their dimensions on the formation of kernel
weight per panicle
The article researches a question of effective using of meat of sheep and chicken meat for increasing of product list
In the conditions of foothill soil-climatic zones of the Republic of Dagestan we have explored the creation of low-cost intensive apple orchards. This work was initiated by the authors in 2011 due to the Republic "Horticulture Development Program for 2011-2016", according to which, it was planned to plant 6,200 hectares of new gardens. However, the experience of gardening in the Republic, taking into account recently prevailing socio-economic relations, subsidized nature of the economic and a chronic lack of funds, shows the riskiness of the creation of high-tech pillar-dwarf plants with the cost of 1-1,5 million rubles per hectare. Inability to overcome quickly the existing problems in the development of the industry sharp gardening at this stage, forced us to seek a way in a single direction - reducing the cost of the creation of apple orchards, while maintaining their high economic efficiency. Theoretical studies were realized as a planting of the apple garden in the district of Karabudakhkent of Dagestan of four perspective late-ripening varieties on the medium growing rootstock in the spring of 2013. The results of the three years of scientific research were embodied in the creation of intensive apple garden on the medium growing rootstock which allow now to make the following preliminary conclusions: 1.It is possible here in Dagestan to create intensive apple orchards, with an estimated yield of 30-40 tons per hectare, on the medium growing rootstock already at a density of 666 trees per hectare. 2. Cost of such a garden, without compromising quality indicators, can be reduced in the current market price of labor and the necessary materials, up to 214 thousand rubles per hectare, with access to the full return of all costs in the seventh year of operation. Such intensive garden, according to common practice, during the period of operation is able to give at least 22 full-weighty harvests and provide a net profit about 6.6 million rubles per hectare, or 236,000 rubles per hectare per year for the entire period of alienation of the land for a garden
The key task of the agriculture in Russia is the further
improvement of grain production. Thus, prevention of
losses of winter wheat yields because of the diseases
remains relevant. The significance of varieties tolerant
to diseases, especially to smut (fungus) is of primary
importance. Therefore, it’s essential to create initial
material for breeding of the varieties tolerant to smut.
According to the results of the trials with artificial
infection with pathogens, among the samples of
winter wheat there have been identified varieties
belonging to different groups of tolerance to smut.
They are a highly sensitive cultivar ‘к-69361’
(Korea), a sensitive variety ‘Izyuminka’ (Russia),
moderately sensitive variety ‘Asket’ (Russia) and
almost tolerant variety ‘1621/03’ (Russia). We studied
the reaction of the hybrids F2 on infection with smut
in different variants of hybridization to obtain stable
progeny. The correlation between the number of
infected plants in parent and hybrid (F2) populations
have been considered. The productive tillering of the
plants has been determined in all variants of the trials;
it was the least one on the plants with 100% of
infected leaves. The hybrids F3 and F 4 have been
distributed according to the degree of their tolerance
to smut. For further work we have selected the lines
with practical resistance to smut (fungus)
The results of development of rice breeding lines, carrying the wide range resistance gene to rice blast disease - Pi-40. For identification of the dominant allele of the gene the DNA - marker analysis was used. With co-dominant DNA markers plants from inbred populations that carry a dominant allele of this gene in the homozygous state were selected
The inheritance of the “mass of 1000 grains” sign in the hybrids F1 and F2 was studied. Differences in the parental forms with 1-5 pairs of genes are revealed. The sources and the donors of the large-mass of grain are pointed, the indicative and genetic collections of the large-mass of grain forms of the grain sorghum are created
Criteria of an estimation and a condition of antierosion actions on various types of the agrolandscapes providing the termination or minimizing of erosive processes of soil and increase of productivity of erosioned unproductive soils are resulted in the article
The article is devoted to the various elements of the cultivation technology of winter wheat called Antonina with the application of different soil fertility backgrounds, fertilizer norms, and plant protection systems against weeds, pests and diseases. Investigations are carried out in a multivariate stationary experiment: factor ‘A’- soil fertility; factor ‘B’ - fertilizer system; factor ‘C’ - the system of plants protection; factor ‘D’ - the main methods of soil tillage. Four models of soil fertility levels were studied in the experiment: А0 - initial (natural background); А1 - medium (200 kg / ha Р2О5 and 200 t / ha of solid manure); А2 - high (double dose); at А3 - high (tripled) on three backgrounds of basic soil tillage: nonmoldboard, recommended, moldboard with deep bursting and without the application of tillage (direct seeding and the natural rate of soil fertility). The soil is heavy leached black humus with humus content in the arable layer of 2.5% - 2.9%. Based on examined researches it was found that for the sustainable yield of winter wheat the dose of mineral fertilizers should be increased, by that, the high quality of the grain is provided
The influence of different agricultural technologies on
the yield of winter barley variety ‘Gordei’ was studied.
Economic evaluation was given to the researched
factors. The studies were carried out at the
experimental station of Kuban State Agrarian
University in the conditions of polyfactorial long-term
soil monitoring. The soil is represented by strongly
leached, light-clay black humus with an average
thickness of the humus horizon - 150 cm. It was found
that with the change of technology (fertilizer, tillage,
sowing method, means of protection) winter barley
yields increases to 50% in comparison with the
control. According to the analysis of bioenergetic and
economic evaluation it makes sense to use the variants
022, 111 and 222 at plowing, where the maximum net
efficiency ratio and net income are noticed
The experiment considered the influence of different
methods of agricultural technologies on the yield of
winter barley in the dependence of the investigated
factors. The studies were carried out at the
experimental station of Kuban State Agrarian
University in the conditions of multifactorial longterm
soil monitoring. The experiment was carried out
in a typical 11-field grain-grass-tillage crop rotation
with the following alternation of crops: alfalfa, alfalfa,
winter wheat, winter barley, sugar beet, winter wheat,
corn for grain, winter wheat, sunflower, winter wheat,
spring barley with sowing of alfalfa. Stationary
experience is represented by the following factors: the
level of fertility (factor A); fertilizer system (factor B);
plant protection system (factor C) and methods of
basic soil cultivation (factor D). The relationship
between the influence of the soil fertility level,
fertilizer norms, plant protection products, the soil
cultivation system and yield, and the crop structure of
the perspective winter barley variety ‘Gordey’ were
determined. The soil is chernozem leached superheavy
light-clay with an average thickness of the
humus horizon - 150 cm. It is found that fertilizer, soil
treatment, seeding method; protective means increase
the yield of winter barley and positively influences the
elements of the yield structure. The yield increase in
comparison with the control changed from 10.4 to 26.8
c / ha. The statistical processing data show that the
fertilizer system (35.8%) and soil cultivation (27%)
had a certain influence on the number of productive
stems; the fertilizer system (44.6%) influenced the
spike size, the fertilizer system (28%) and the tillage
(32.8%) had influence on the amount of grain in the
spike and influenced the mass of grain from the spike