The article presents the materials of the study of nutrient medium and selection modes of cultivations
The article describes the biotechnology of bacterial concentrates with cryofreezing of microbal mass. Obtained bacterial concentrates are used in the production of whey-based feed additives with probiotic effect. Feed additives were tested on milk-fed calves within scientific experiments
The article studies the impact of waste and ash from the elevators of their burning on the microflora of rhizoplane, rhizosphere and phylloplane of winter wheat grown on leached black soil
Artistic works from the last century to the present time constitute an alternate source of information on decorative pumpkin, which become a valuable resource for investigation genetic and taxonomy, as well as crop history
Industrial horticulture assumes the most effective use of
the potential of varieties. One of the key factors
determining the yield of garden plantings is the
effectiveness of pollination. To obtain the maximum
yield, it is necessary to ensure maximum pollination
during the flowering period. For this reason, much
attention has been paid to the selection of pollinators.
Crab-apple forms are promising for use as pollinators, so
this work was aimed at identifying the most common
alleles of the self-incompatibility gene in the crab-forms
using the molecular genetic method of analysis. The
object of the study was 29 apple-tree creams and 3 elite
selection forms. They carried out the molecular genetic
identification of alleles S2 and S10, which are among
the most common apple trees in the world gene pool.
Allele S2 was identified in 16 samples (14 forms and 2
elite selection forms), while S10 allele in one
sample (elite form 12/2-20 (24-28)). Data on the allelic
composition of the S gene in the samples studied are of
value for the formation of a genetic passport on the
compatibility of the studied samples of apple with
modern industrial varieties
The study of agronomy plants history, its distribution
and use through image analysis and iconography have
been presented. As an object of study, the image of
wheat has been taken as the ancient culture of the
world among agricultural plants. After many years, the
illustrative series takes on a completely different
meaning, namely, it becomes an independent resource
of information. The analysis includes images of wheat
in painting, sculpture, mosaic, tapestries, murals,
botanical illustrations, stamps, porcelain and scientific
drawings. In the work, we have made an attempt to
analyze the images of wheat in the works of art in
order to search for species diversity, directions of
selection and genetic research, and also to present the
morphological characteristics of culture. The method
of analysis is a method of visual notes or sketches,
which consists in comparing and searching
information by image. The analysis is carried out on
grounds: tall wheat, multiflorous forms of wheat, nonspreading,
thickness of straw. The visual analysis of
the images of wheat in works of art by the method of
sketches made it possible to reveal the species
diversity of culture along the ear, to see the ancient
forms that were cultivated in the world before the
"green revolution". The analysis included works of art
from the 14th to the 21st century, the masters of
painting in Italy, Germany, Russia, the Netherlands,
France, the United States, and others
The analysis of the variability dynamics of recombination frequency in the population of splitting F2 interspecific and intraspecific tomato hybrids has been carries out. It was discovered that recombination frequency depends on the components of cross breeding. It has been established that it is reasonable to use mutant forms of Мо 393, Мо 628 and interspecific hybrid F1 Мо 628 × L. esculentum var. racemigerum in selection process as an inductor of genotypic variability
In the article two differently obtained preparations of immobilized horseradish peroxidase are compared with free enzyme and with each other by their stability. It is shown that both preparations of immobilized peroxidase possess increased stability during storage and heating. It is established that activity of hydrogel obtained increases after heating
The article reveals historical aspect of the Donets
Ridge petrophytic vegetation study. The stages of
formation of concepts and terms in the typology of
vegetation of the rocky outcrops of the steppe zone
The article deals with the historical data about the stages of development of greening of Voronezh, as well as it gives an analysis of the modern species of deciduous trees in the greenery planting of the city