Name
Troshin Leonid Petrovich
Scholastic degree
•
Academic rank
professor
Honorary rank
—
Organization, job position
Kuban State Agrarian University
Web site url
—
Articles count: 170
Newest wine Muscat grape variety with colored pulp and juice Serra was breeded at Athens Institute of Viticulture (Greece) by P.Zamanidi and L.Troshin in 2007 by crossing the Ukrainian Odessa black variety (Alicante Bouschet x Cabernet Sauvignon) with the new Greek Muscat black berry Krimbas variety. According to the morphological and physiological characteristics it is included in the eco-geographical group of Black Sea Coast. Length of production period is 146-155 days. Strong growth of shoots (2,1-3,0 m). Percentage of productive shoots is over 90. Productivity is very high: 25-30 t / ha. Average weight is 350 g. Grapes characterized with high resistance to cold, drought and increased resistance to fungal diseases in comparison with varieties of Vitis vinifera. Flower is hermaphrodite, with the stamens and fully developed gynoecium. Cluster is medium, conical, sometimes with wing, medium density. Berry is small, round, blue-black, with a thick waxy coating. Peel of medium thickness, dense, durable. Pulp and juice are intensely colored, flavored with Muscat taste. Sugar content is very high, in the bushes at sun-dried bunches up to more than 40%. Prolonged preservation of crop on bushes. Variety is intended for manufacturing intensely colored dry red wines of excellent grade and high-quality sparkling, dessert, sweet and liqueur wines, and is suitable for the manufacture of high quality intensively colored juice with Muscat taste. When used in blends with other varieties increases color, full flavor and improves the bouquet of wine
In this article chemical and technical characteristics questions of vine materials, received from protoclones of grapes of Saperavi grade - one of the basic classical grades of grapes selected in "Pobeda" Joint-Stock Company are taken up. Samples of grapes have been used for preparation of red table wines by mash fermentation on septum in workshop of micro winemaking of The North Caucasian zone scientific research institute of gardening and wine growing. They have not given vine materials identical on physical and chemical and organoleptical features. Samples with low productivity essentially differed on organoleptical qualities from other samples and had the highest sampling estimations that allows to take measures on loading regulation on a grape bush and correct quality of wine in further by means of methods of agricultural technics. For making high-quality table red vine materials it is recommended to use apple-lactic fermentation by means of oxygen-eating bacteria
The article presents the research results of eight grapes rhizogenesis of different genetic origin of the cuttings after treatment with 0.01% solution of IAA for 24 h. It was found, that the activity of regenerative processes in grape cuttings depends on the varietal characteristics, storage conditions and the activation of IAA. It leads to disruption of existing natural correlations, including suppressing the longitudinal polarity. Root-growing ability of cuttings is a genetically determined feature: the effect of IAA did not cause the stability of the positive reaction; it is determined by genotype and depends on the quality and physiological condition of the cuttings
The article discusses the application of automated system-cognitive
analysis (ASC-analysis), its mathematical
model is a system of information theory and implements,
its software tools – intellectual system called
"Eidos" for solving one of the important tasks of ampelography:
to quantify the similarities and differences
of different clones of grapes using contours of the
leaves. To solve this task we perform the following
steps: 1) digitization of scanned images of the leaves
and creation their mathematical models; 2) formation
mathematical models of specific leaves with the application
of information theory; 3) modeling the generalized
images of leaves of different clones on the basis
of specific leaves (multiparameter typing); 4) verification
of the model by identifying specific leaf images
with generic clones, i.e., classes (system identification);
5) quantification of the similarities and differences
of the clones, i.e. cluster-constructive analysis of
generalized images of leaves of various clones. The
specific shape of the contour of the leaf is regarded as
noise information on the clone to which it relates, including
information about the true shape of a leaf of
this clone (clean signal) and noise, which distort the
real shape, due to the random influence of the environment.
Software tools of ASA-analysis which is
intellectual "Eidos" system provides the noise suppression
and the detection of a signal about the true shape
of a leaf of each clone on the basis of a number of
noisy concrete examples of the leaves of this clone.
This creates a single image of the shape of the leaf of
each clone, independent of their specific implementations,
i.e. "Eidos" of these images (in the sense of Plato)
- the prototype or archetype (in the Jungian sense)
of the images
In the present article, we have described data of comparative ampelography of biometric evaluation of leaf parameters of the three table grapes: Preobragenie, Victor and Jubiley Novocherkassk, widespread in the amateur and farming areas of Russia and the Ukraine. Showed results of molecular genetic analysis of DNA from these table grapes
Newest technical black berry variety named Piste (“Faith” in Greek) with colored flesh and juice breeded at Athens Institute of Viticulture (Greece) by researchers Zamanidi P., L. Troshin and P. Radchevskii in 2007 by crossing the Greek varieties Afoos (Mavrodafni x Alicante Boucher) with Ukrainian variety Odessa black (Alicante Bouchet x Cabernet Sauvignon). Duration of production period is 146-155 days. Growth of shoots is strong (2,1-3,0 m). The percentage of productive shoots is more than 90. The yield is very high: 25-30 t / ha. The average weight of clusters is 250 g. It can be characterized by high winter hardiness, drought resistance and increased resistance to fungal diseases in comparison with varieties of Vitis vinifera. Flower is hermaphrodite. Cluster is medium, conical, sometimes with wings, medium density. Berry is small, round, blue-black color with a thick waxy coating. The skin is medium thickness, dense and durable. Pulp and juice are intensely colored. Very high sugar content. Variety is intended for the production of intensely colored dry red wines of excellent class, as well as high-quality sparkling wines, dessert, sweet and liqueur wines; suitable for the manufacture of high-quality strong colored juices. When used in blends with other varieties enhances color, full flavor and enhances the bouquet of the wine
In presence article results of the three-year study of new varieties of table grapes and elite forms of super-early and very early ripening by their Agrobiological and economically valuable characteristics in terms of the Crimea and North Caucasus.
Peculiarities of microсlone propagation of introduced varieties and grape clones, and home varieties created in Kuban State Agrarian University as well, which were given for national trial and for industrial production are discussed in this article.
The Patris variety is a hybrid, which was made as the result of Greece-Russian scientific collaboration in Greece by Panteley Zamanidi and Leonid Troshin in 2001 year by hybridization of Aigeorgitiko and Cabernet Sauvignon variety. By its morphological characteristics, it is included to the group of the Black sea varieties (convar. pontica subconvar. balcanica Negr.). The production period is 156-165 days. The growth of shoots is big. The yield is very high. The weight of bunch is 250 g. It has good frost resistance, drought resistance and higher steadiness to mushroom diseases, comparing with the parents varieties of Vitis vinifera L. The leave is middle, black-green, five lobes, deep divided, bubbles on the higher plate are low, the hairs are low on the upper side and intense on the bottom. The flower is hermaphrodite. The bunch is middle, cylinder conical or wrinkle, low density. The berry is middle, round, blue-black color. The skin is dense. The pulp is juicy with paslen taste. The sugariness of juice is high. The variety is used for making dry red wines of outstanding quality
Numerous studies have found a different quality of the
buds along the length of the fruit arms, which expressed
various degrees establishing embryonic inflorescences in
the central buds. It is revealed that many of the grapes
have more fruit-bearing eyes formed on average (4-6
knots) and upper (7 to 10 knots) levels of fruit escape,
compared to the lower (1-3 nodes) layer. In connection
with the different quality of the buds along the length of
fruit vines should be used and different ways of cutting
them. It is necessary to consider the biological
characteristics of varieties, ways of doing and shaping
the bushes, the weather conditions of the area during the
growing season and relative calm. To receive annually a
stable high yield of grapes, we must first set the optimal
length of pruning fruit shoots and optimal load on the
Bush healthy eyes. This requires for each class on the
eve of trimming bushes to carry out the analysis of the
wintering holes along the length of the fruit shoots and
to identify the embryonic fruitfulness of Central buds,
i.e. to carry out the prediction of grape yield next year.
The article presents data on the formation of the
embryonic fruitfulness of Central buds of wintering buds
at the Taman group of grapes – Arcadia, Viorica,
Hibernal, Cabernet Sauvignon, Merlot, Moldova, Pinot
white, Riesling, Saperavi, Traminer pink, Tsimlyansky
black, Chardonnay. Found higher rates of embryonic
fruitfulness of Central buds buds in the studied grape
varieties - Chardonnay, Riesling, Viorica, Hibernal,
Merlot, Moldova, where the coefficients of fruiting
ranged from 1.40 m from Riesling to 1.69 from Merlot;
factor productivity of 1.58 from the Chardonnay to 1.77
from Merlo. The high percentage of fruitful buds from
80,8 from Cabernet Sauvignon to 95.6 in the cultivars
Merlot and Chardonnay. A higher percentage of eyes
with 2 embryonic buds in the cultivars Merlot and
Viorica who have this indicator amounted to, respectively: 75,6 and 70.6%. Forecasting a crop of
grapes next year to trim the bushes on the proposed
method will provide a full crop of grapes