The results of long-term population-genetic studies in wheat pathogen system “wheat – dangerous disease pathogens” associated with the study of the structure, variability, forecast of plant pathogen development and the host plant genetic diversity are introduced.
It is shown that it is necessary to develop polymorphic genetic disease resistance of plant populations to rehabilitate the agroecosystem phytosanitary state, which is possible only on the basis of broad genetic diversity of source material, taking into account the intraspecific differentiation of pathogens and tendencies of the changes
Newest breeding aromatic grape variety with colored
pulp and juice is Traminer black bred in Athens
Viticulture Institute (Greece) P.Zamanidi, L.Troshin
and L.Maltabar in 2007 by crossing the Ukrainian
(Odessian) black varieties (Alicante Bouschet x
Cabernet Sauvignon) with the European Traminer
pink. According to the morphological and
physiological characteristics related to the group of
Western European varieties. Length of production
period 136-145 days. The strength of growth shoots is
strong (2,1-3,0 m). Productivity is high. The average
weight of bunch 200 grams. Characterized by a high
resistance to cold, drought resistance and increased
resistance to fungal diseases in comparison with
common varieties of Vitis vinifera L. Flower is
hermaphrodite. Clusters are short or medium, conical,
sometimes with wing, average density. Berry is small,
round, blue-black coloring, with a thick waxy coating.
Peel thick, dense, durable. Pulp and juice intensely
colored, with a taste of Gewurztraminer. Content of
sugar is very high: in the bushes on the stale grapes
reaches more than 40%. Prolonged preservation of
crop on bushes. Sort intended for manufacturing
intensely colored dry red wines of excellent grade and
high-quality sparkling, dessert, sweet wines and
liqueurs, and is suitable for high-quality juices. When
used in blends with other varieties, enhances
coloration, completeness of taste and improves the
bouquet of wine
In the article review of data about yearly change-ability for the scope of grain production in Russia and variability of crop capa¬city under irrigation and without it is given. Theoretical substan¬tiation of the part of irrigated area for ensuring sustainability of grain production in arid regions is suggested
The anthers of glutinous rice variety Violetta (1400) have been grown in medium N6 producing 72 calluses. Transplanting the calluses to regeneration medium MS gave 7 green fertile plants and one sterile. After 10 months the long cultivated calluses of the glutinous rice Violetta produced regenerated plants. They were passed onto MS medium containing 5 mg/l 6-benzylaminopurine and 1 mg/l IAA. Clonal reproduction was used for production of more haploid regenerated plants
The main criteria in assessing the adaptive capacity of Actinidia deliciosa (kiwi), cultivated in Russian subtropics were yield of the introduced cultivars, as well as ecological (stability and periodicity of fruiting) and biological indicators (resistance and periodicity of fruiting). The studied nature of the way Actinidia cultivars react to the constantly changing weather conditions during the period from 1998 to 2011 will help to optimize the placement of the crop in subtropical zone, and use natural resources for its unique climatic properties of Russian territory in a sustainable way
The article presents the results of three years of testing
varieties of soft winter wheat. We have considered their
adaptability to different environmental conditions,
ecological plasticity, stability and homeostatic ability.
The article discusses the characteristics of varieties for
yield and baking qualities
Future increase of rice productivity is possible in expense of plant change architectonics. Creation of plants with erect position of leaves allows to compact sowings and to increase the productivity of cenosis. There were studied the rice samples with erect leaves and large grain as an initial material for selection on increased productivity
The article presents the characteristics of condition and growth of Pinus sylvestris and Betula Pendula in their cohabitation in poor sand soils (A2) in the condition of some forest enterprises of Voronezh region; the most effective way of combination of this species is revealed
The article contains the results of the researches on the experimental field in the "Kuban" educational farm of Kuban State Agrarian University. In the black leached soil we defined particle size, the structure and the composition of water-physical properties of the soil, which are the most important conditions for high and stable crop productivity. We also gave morphological and genetic characteristics of the soil
The regularity that increases biological and enzymatic activity with increasing the age of the deposits of 10 to 82 years has been shown. The indicator of recovery of black leached soil steppes can be presented as invert-ase activity and humus content, as well as reducing the density of the soil. Integrated indicator of the biological properties decreases with decreasing age deposits: 82 years (100%) - 26 years (84%) - 16 and 10 years (74%) - arable land (64%)