The article presents the results of the study of the
effect of the size of the explant clonal rootstocks for
stone fruit crops of the Krymskaya OSS VIR VSL-1,
VSL-2, LC-52, RVL-1, RVL-7, VVA-1, AP-1 injected
in vitro and concentration vitamins and
phytohormones in a nutrient medium on the efficiency
of introducing in vitro of these rootstocks. The optimal
size of the injected in vitro explant was determined and
nutrient medium in the first stage of micropropagation
was optimized. The optimal size of the dissected
meristem, which provides the maximum percentage of
explant initiation is 0.4 mm. The modified version of
the nutrient medium based on the Murashige and Skug
prescriptions with a reduced content of vitamins B1 0.1
mg / l, B6 0.4 mg / l, PP- 0.4 mg / l, and phytohormone
6-BAP - 0.3 mg / l. at the first stage of cultivation of
explants of clonal rootstocks for stone fruit crops is
optimal. The survival rate of explants in all tested
samples of clonal rootstocks on this modified nutrient
medium was in the range of 92.5-97.5%
The article gives the results of researches carried out on stationary sites of typical agricultural landscapes to register the development of erosion processes. Systems of phytomeliorative and soil protective techniques and methods on shallow gully and gully-field types of agricultural landscapes in southern black soil zone of Rostov region are also proved
In the soils of rice fields, eluvial gley processes
develop, which are manifested in redistribution of silty
particles along the profile, water-soluble humus,
mobile compounds of iron and phosphorus. Most
intensively, these processes are developed in meadowbog
soils, confined to closed depressions of the plains
plain. Meadow-black soils lying on elevated relief
elements have more favorable physical, physicochemical
and oxidation-reduction properties for
cultivating rice and accompanying crops in crop
rotation. The highest yield of rice is formed on high
checks and higher at 12,4 c/ha than on low ones
In the soils of rice fields, eluvial gley processes
develop, which are manifested in redistribution of silty
particles along the profile, water-soluble humus,
mobile compounds of iron and phosphorus. Most
intensively, these processes are developed in meadowbog
soils, confined to closed depressions of the plains
plain. Meadow-black soils lying on elevated relief
elements have more favorable physical, physicochemical
and oxidation-reduction properties for
cultivating rice and accompanying crops in crop
rotation. The highest yield of rice is formed on high
checks and higher at 12,4 c/ha than on low ones
Results of researches carried out in stationary multi factorial experience, plotted in 1991, were generalized in the article. Different influence of cultivated crops
in crop rotation on agro physical properties of active fertile layer of old irrigated leached chernozem
was determined on the base of material generalization.
Positive role of alfalfa for improvement of agro
Physical soil properties were revealed. Quantity of agronomically valuable aggregates and water proof
of soil structure are increased because of it.
Condition of flax growing branch development for the period from 1980 to 2007 is characterized in the article, modern ecological-economical problems of agrarian sphere of regional AIC are analyzed. Main trends of flax growing branch effectiveness increase
on the base of keeping and increasing of soil fertility were determined.
The analysis of foreign and domestic methods to evaluate soil productivity sowings has been presented. It has shown the need for soil environmental assessment in the West Central Caucasus. The soil-environmental index and index scores for an experimental field of individual crops rotation, which will promptly assess the fertility of the soil, give recommendations for rational allocation of fertilizer has been given
The research has revealed that sodium selenite, vitamin E and bifidumbacterine should be included into the ration of the agricultural poultry to increase its antioxidant status
In the article, we have considered the influences of agrarian production on environment and melioration on efficiency of land resources. The system of calculation of efficiency of performing meliorative actions taking into account inflation and costs of melioration has been offered
Small-leaved lime (Tília cordata) is wonderful species
of trees, producing honey. This tree species is not
cultivated in forest tree nurseries of Head forestry
department of the Omsk region for the purpose of an
artificial reproduction. Small-leaved lime grows wild in
Bolshyi Uki, Ust-Ishym and Tevris areas. This forest is
the basis for a honey production. Small-leaved lime
occupies a very small area, which equals 1,5 ha. Natural
reproduction of small-leaved lime in the Omsk
Pryirtysh district is a reliquiae. Questions of
reproduction of small-leaved lime have not been studied
yet. Shoots cloning of small-leaved lime has an
important practical value for areas of natural
reproduction. A technology of seed reproduction has
not been developed for the Omsk region. Complexity of
the matter is in the existence of a long and deep
physiological quiescent period of small-leaved lime
seeds. Experimental facts of small-leaved lime seed
reproduction has been described in this article. Results
of measuring of height and root neck diameter of oneand
two-year old plants have been shown. The
influence of putting young plants in the shadow on
their growth and development has been evaluated. It has
been shown that seedlings received from small-leaved
lime growing in the Оmsk State Agrarian University
Dendrology Park have large variation in the growth
and development parameters and the fact of casting
shadows on the plants truly affects the height of oneand
same as two-year old samples