Vasily Nosulchak, the newest complex-resistant tableless seedless grape variety, was bred in Greece by Pantelei Zamanidi and Leonid Troshin in 2013 by crossing the Talisman variety with the Yanaky variety. The created variety is a complex inter-species Euro-American-Amur hybrid. The duration of the production period is 146-155 days. The growth of shoots is strong. The degree of grapevine maturing high. Yield is very high. Percentage of fruit-bearing shoots 90. Average weight of bunches 900 g. It is stainable for high winter hardiness, drought resistance and increased resistance to fungal diseases, tolerant to phylloxera. The top of the young shoot is green without pubescence. Young shoots are green, without pubescence. The flower is hermaphroditic. The cluster is large, conical, branching, winged, of medium density. The berry is medium-sized, short elliptical, green-yellow. Peel is thin, strong. The pulp is juicy, with a varietal flavor. The sugar content is high. Rudiments of seeds are soft. The variety is intended for fresh consumption and kishmish production. The table high-yielding seedless variety Vasiliy Nosulchak in terms of winter hardiness, resistance to diseases and pests significantly exceeds all Eurasian varieties of table and kishmish designation. Can be used as a table grapevine for fresh consumption on site and for export, as well as for the production of high-quality dried products. As a winter-hardy variety, it is very promising for cultivation in covered viticulture zones, where table varieties require shelter for the winter. It is of great interest for selection work in breeding frost-resistant, diseases and pests of seedless varieties. To determine the influence of different ecological conditions on the growth, development, quantity and quality of the crop, the variety must be tested on all continents in different ecological and geographical areas of cultivation - in the grapes producing countries of America, Eurasia, Australia, Africa
Professional apple gardening is bound to particular
risks, of which is essential losses of a harvest because
of diseases. An apple scab, the caused Venturia
inaequalis (Cooke) G. Winter, brings the greatest
loss. The main approach in monitoring of a scab of an
apple-tree is creation of grades, steady against
pathogen. In the present work we have carried out
phytopathology testing of generations of the seedlings
received from the free pollination of six forms of a
crab of Malus orientalis from a collection MOS VIR
(Maykop) characterized by a relative resistance to the
apple scab in 2-3 classes of damage by long-term data. For infection we used inoculum, consisting both
of natural population of a scab, and of strains of
pathogen of various cultivars and geographical origin.
When carrying out padding infection increase in force
of an infectious background that can be bound to
selection of the plants of biotypes of a fungus that are
most adapted for genotypes was noted. It is
recommended for precise elimination of unstable
plants at selection at early stages of an ontogenesis to
carry out more than one serial infection during the
season. By results of the phytopathological testing,
we highlighted three Malus orientalis forms from the
six studied No. 17982, 17985 and 3080 the most
perspective stability genes for an introgressiya in a
cultural gene pool of an apple tree
The distribution and variability of features of the
endemic of flora Eastern Caucasus Centaurea
daghestanica (Lipsky) Czer. were given in this article.
Eleven locations of the species are detected and three
of them are new ones. C. daghestanica grows in the
lower and middle mountain belts from 400 to 1250 m
above sea level. In the lower belt, the species is found
on clayey areas of the solonchak valley of Kar-Kar and
the limestone slopes adjoining the valley, on average
on shale screes and stony slopes. Three populations of
the C. daghestanica we studied. Species composition
on the investigated sites was determined, and a
geobotanical description is carried out. Project
coverage of C. daghestanica in the studied populations
varies within 2–5%. By generative individuals of
different ages were represented mainly populations.
One generative shoot from 30 individuals in each
population was taken to reveal the variability of the
generative shoot structure, on which 13 traits were
taken into account. The degree of variability of the
morphological features of C. daghestanica shoot is
different, the influence of the altitude level on them is
not the same. The annual shoot of C. daghestanica has
an average of 3-5 branches of the first order. Branches
of all levels are located at the bottom of the shoot
Rice fields all over the world are one of the places of invasion of adventive weed species. They can reduce the yield of the rice crop by 20-30%. The phytomonitoring studies in the rice systems of the Krasnodar region in 2017 have discovered a new species of Ammannia coccinea Rottb. (Lythraceae) among the weed vegetation of the grain crops. The article gives a botanical description of the species; its biological and ecological features and ways of its distribution are discussed. Ammannia coccinea is an annual plant, light-loving and hygrophilous. The country of origin is North America. This is one of the most malicious weeds in California and the United States in general. In Asian and European countries, the plant is brought with rice seeds. Currently, in many rice-growing regions of the world, the species A. coccinea tends to spread and increase the severity of infestation. The species was registered in the Krasnodar region in the rice fields of the Abinskiy, Kalininskiy, Krasnoarmeiskiy and Slavyanskiy regions. The number of plants of A. coccinea does not exceed one plant per 10 m2, with the exception of three locations of invasion, where the density is up to 5-7 pcs/m2 and the plants occupy an area about 0.5 hectares. Considering the fact that in rich soils the height of the plant reaches 1 m, with the ramification of the stem, the plants go to the first tier. They successfully compete with rice plants, suppressing their growth and development. This can adversely affect crop yield. The article discusses the reasons for the appearance of A. coccinea in the rice fields of the Krasnodar region
The article presents the data on vitality and age
structure of Beckmannia syzigachne and
Calamagrostis langsdorffii соеnopopulations under
conditions of the Lena-Viluy interfluve. The study
revealed 3 types of vitality of Beckmannia syzigachne
(prosperous, equilibrium, and depressive), 2 types of
vitality of Calamagrostis langsdorffii (prosperous and
depressive). The age spectrum in both species is
normal, non-complete, left-sided. According to the
delta-omega classification, the coenopopulations are
considered to be young
The article gives an analysis of the elemental
composition in raw materials of stevia. Stevia plant is
able to regulate the flow of heavy metals, allowing
them, on the one hand, actively oppose the excessive
intake of toxic elements and on the other hand,
selectively cumulate essential elements. The contents
of essential elements in plant raw materials do not
exceed the acceptable standards regardless of the
growing conditions
The author describes the dynamics of commercial
catches and the forecasts of pikeperch catch in 2010-
2016 with an analysis of the causes that affect the
state of stocks. The analysis of the effectiveness of
the recommended pikeperch catch has been made
taking into account the factors that affected the
fishery. Researches were carried out to study the
population structure, seasonal distribution, migrations
and other characteristics of the pikeperch populations
in the Azov limans. The obtained data made it
possible to assess the state of the pikeperch stocks
and give recommendations on their rational use.
Based on the results of ichthyological studies, the
pikeperch age, length and weight composition have
been determined and its biological state has been
studied. The preliminary forecast of the stocks and
the recommended pikeperch catch in the Azov limans
for 2018 is given. The forecast of the recommended
pikeperch catch in the Azov limans for 2018 is based
on the analysis of the stocks of commercial fish
species for a number of years of observations, taking
into account the total mortality rate under the
influence of the fishery load (commercial mortality
coefficient) and the amount of replenishment of
commercial population with fish mature for the first
time
The article gives the results of the study of an effect of
mechanochemical powder of wood green of Abies
(MPA) on potato morphogenesis in vitro. The study
involved the hormone-free nutrient mediums (MS, ½
B5, ½ LS) for growing microcuttings from preliminary
obtained aseptic plants. Plant morphogenesis was
observed on the 15th and 30th days. At that, the number
of developed shoots, plant height, leaves number,
rhizogenesis rates, root number and length were
estimated. MPA appeared to have the regulatory effect
on morphogenesis of potato microcuttings. Based on mineral composition of the nutrient agar medium for
potato microcuttings growing, MPA at 100 mg/l
concentration induced root development (½ B5
medium), reduced height of shoots (MS medium),
while the number of leaf blades was not affected
The study concerns the results of the study of
coenopopulations of the following Fabaceae species:
Medicago falcata, Oxytropis candicans, and
Onobrychis arenaria under conditions of the Middle
Lena River. The study was conducted in Yakutsk
vicinities, 13 km north-east of the city. It is stated that
all the studied coenopopulations are normal. Rather
small values of substitution and recovery indices
evidence certain problems in self-maintaining
processes. The age structure analysis using two age
indices, “delta” and “omega”, allows to classify the
coenopopulations of Medicago falcata, Oxytropis
candicans and Onobrychis arenaria in phytocoenoses
of the Lena River valley as normal young populations.
They were prevailed by juvenile, immature, virginile,
and young reproductive plants
We have presented information about species diversity
of the coastal zoobenthos in some of Karasun lakes,
Krasnodar. We have shown methodology information
and reported the research area. We have made a
taxonomic analysis. The biomass and the quantity of
the main zoobenthos groups were calculated. Based on
the two main fodder objects - Olygochaeta and
Chironomidae and the P/B coefficient, there was
calculated zoobenthos production of the studied lakes.
The potential fish capacity was defined