This article provides an overview of results of the conducting surveys on screening and saving gene pool of indigenous grape varieties in the Republic of Abkhazia, which contributed to detection and identification of the 15 previously described in the literature of Abkhazian native grape varieties
Combining ability with respect to “grain productivity” has been studied among thirty eight self-pollinated lines of maize of mid-early and early maturing in the system of hybrid combinations. The lines with high general (GCA) and specific (SCA) combinative ability have been hybridized. New high heterotic hybrids have
been developed on the basis of lines with high GCA and SCA
Hybridization was performed for nine hybrid
combinations between Russian early-ripening varieties
Novator and Serpantin and South Korean cold-tolerant
introduced samples Odaebueo и Tinbubueo. As a
result, 283 hybrid caryopses in eight combinations
were obtained, which were later studied in growing
conditions. Study of trait inheritance in F1 hybrids was
conducted, heterosis effect of studied hybrid
populations was determined by productivity and
individual elements of yield structure, using indicators
of the degree of phenotypic dominance (hp) of
quantitative traits. Significant variability in agronomic
traits of F1 hybrids was determined. The manifestation
of heterosis in productivity was noted in combination
Odaebueo / Tinbubueo, in which super dominance was
observed by all the studied traits forming productivity,
in the hybrid progeny. Using the "halves method",
analysis for cold resistance of 227 F2 plants in eight
hybrid populations was performed. Seven lines with
increased resistance to low positive temperatures
during germination were identified in five hybrid
combinations, which is 3% of the studied material. It
is shown that in breeding for cold resistance as mother
plants in hybridization it is necessary to use rice
varieties (samples) that are resistant to low positive
temperatures during germination, and as paternal -
more productive varieties, adapted to soil and climatic
conditions of rice growing area of the Krasnodar
Region
The article presents an analysis of the influence of genes MС4R and POU1F1 on backfat of pigs. Shows the frequency of alleles and genotypes for genes MС4R and POU1F1 and their relationship with the parameters of backfat
In this article we present the research data of the influence of crossing on young pigs hematological parameters and meat productivity
There are materials about different genetic methods of metotical and meyotic autopolyploid of grapes in the article. Main morphodiagnostical signs of autopolyploids in it are pointed. New forms and varieties of grape may easily form with the help of genomic mutation. The experimental polyploid on grape leads to functional changes, which helps to become aliveness and stable in bad environment. The increasing of such kind of main genetic signs in grape, as high stable to bad ecological facts, illness and insects, high growing, seedless, high productive from bush, becoming sugar gather in fruits and bioactive elements in juice, etc., so it is possible to solve it only in moving to the new level of ploidy
Farms of Krasnodar region purchase cattle of milk, combined and meat direction of productivity. Imported cattle are accompanied with documents which differ from analogous ones specified in such cases by pedigree service of Russia. There were studied 1000 heads of symmental cattle of milk-meat direction of productivity imported from Austria. More than 5000 kg of milk can be obtained from cattle of symmental breed of milk-meat direction of productivity, except it they show enough high meat productivity. The analysis of accompanying documents on purchased cattle is joined not only with language barrier but with the lack of knowledge of adopted abbreviations, contractions and other attributes used by foreign breeders abroad. Having studied the accompanying documents connected with hereditary information of purchased cattle there was determined that imported heifers and their mothers were obtained in Austria, and mothers of bulls on 55,5% obtained in Austria and 41,6% in Germany. So, on formation of imported micropopulation of cattle greatly influenced the breeding school of Germany. In accordance with the adopted classification in Austria due to revealed cases of adoption of Holstein blood, there is a ground to consider the present herd as a belonging to the group of pure breed of symmental cattle and in prospect to conduct the mating of cattle with pure breed symmental oxen with the aim of absorption of mixtures of Holstein blood in pedigree. The researches determined that one can purchase the producers with characteristics of milk productivity at daughters of oxen not lower than Austrian indexes on voluminous milking and German – on milk quality, the purchase of symmental cattle from other countries must be subjected to this demand.
This article presents the results of genotyping of new
perspective table and technical varieties and grapes
protoclones. It was established that varieties of Citrine,
Helios, Arcadia pink and Preobragenie show differ
genetic diversity in four loci
In this article we have described our work on genotyping of new ten productive wine grape protoclones
In this article we have described a study of genotyping of new three productive wine grapes protoclones: Rhine Rieslin, Verdot black and Johanniter