The article presents the results of statistical studies on
sowing area of one-year stern in agricultural production of the country and of separate regions. We have also studied the structure of the areas in the Russian Federation and presented the analysis of the areas of the one-year forage crops in the south Federal County
In the article, we discuss issues of morphological and
physiological control over plants of winter wheat. As
the object of the research, we have selected landraces
- the population of winter wheat, which was grown
on the territory of the Kuban region in the last
century. The aim of this work was determination of
the effect on the reproductive system of winter wheat
varieties of factors such as conditions of cultivation
and processing "Cecece 750" 1.5 l/ha D. V. crop
retardant. To achieve this goal we have conducted a
morphological analysis of the growth cone at the VI
stage of organogenesis, which provide quantitative
evaluation of potential future seed production of
spike of winter wheat. To study the effect of the year
of breeding on the reproductive system of winter
wheat varieties the analysis of variance was
calculated according to the scheme 3×7 factorial
variability characteristic due to the influence of
genotype (factor B), cultivation year (factor A), that
is repeated in time is interpreted as the effect of the
year conditions of cultivation. The influence of
retardant on the reproductive system of winter wheat
varieties was conducted using the analysis of
variance on the above described scheme, 2×7, where
the factor "A" is presented in two gradations
(options, retardant treated and not treated), in this
case, repeated for years was excluded as a factor. The
result of researches indicates that the rate of realized
productivity is variety-specific and can serve as a
measure of the flexibility of the studied cultivars to
different environmental conditions. The analysis of
variance showed significant retardant effect on the
realization of potential productivity in all variants of
the crops of soft winter wheat. The comparison of the
average general population indicates that the genetic
potential of tall varieties may not manifest even in
favorable for crop cultivation. The artificial reduction
of plant height by inhibiting the growth of retardant
is an effective way to identify high productivity of
these genotypes as varieties of winter and Nemenchinskaya Old No. 346
This article has explored different ways of watering annual apple seedlings in pots. The greatest phytomass was obtained with pellets of Aqualife supersorbents in the version of 10gr. dosage
In the conditions of the two-factor field experiment,
the influence of four methods of incorporating straw in
the soil on the rice yield was studied: plowing, one-,
two- and three-time discs and three ways of
"processing" the straw: embedding in the soil of the
chopped straw in its pure form, together with
compensating nitrogen fertilizer and inoculated stubble
biodestructor Stemix ® Niva. It is shown that the
lowest yield is formed when straw is plowed, while
surface tillage of soil by one-, two- and three-fold
discs significantly increases the grain yield in
comparison with the plow by 2.4, 4.2 and 5.2 c / ha,
respectively. Taking into account that the double
disking provided an almost twice increase in the yield
of the crop and the absence of statistically significant
differences with the triple disking; it is this method of
incorporating the straw that should be considered the
most expedient. The introduction of a compensating
nitrogen fertilizer ensured a reliable increase in yield
by 5.1 and 3.7 centners per hectare in comparison with
the variants with the introduction of straw in pure form
and treatment with biopreparation. Calculation of the
share of the influence of the factors studied on the rice
yield showed that the method for embedding straw
provides 29.9% of the variability of the trait under
study, the method of straw treatment is 36.7%, and the
residual dispersion accounts for 33.4%. Incorporation
of chopped rice straw in the soil together with
compensating nitrogen fertilizer in the amount of 1%
of the mass of straw, by double discing, ensured the
receipt of a conventionally net income of 6940 rubles /
ha, the rate of return - 70.4% and the cost recovery -
1.7 rubles / rub
The article presents results of the assessment of the
efficiency of non-hormonal preparations which were
not earlier applied in culture in vitro with high physiological
activity (the preparations received by production
of furfural, and also derivatives and compositions
of organic acids) during regenerations of microshoots
of plum, comparison of their influence with
influence of growth regulators which are traditionally
used in clonal micropropagation. These experimental
preparations were received when processing waste of
agricultural production. In this work we used: technology
of clonal micropropagation of plants of in
vitro, statistical data processing by method of the
dispersive analysis. The objects of researches were
microshoots of plum of a Stanley variety. We have
established that on mediums with the preparations
"Universal", sodium succinate, potassium succinate,
amber acid, L-1 the large, intensively colored plum
microshoots develop surpassing control (medium
with BAP of 1 mg/l, IBA of 0,1 mg/l, gibberellic acid
of 0,5 mg/l) in morphometric parameters. Thus, the
preparations "Universal", sodium succinate, potassium
succinate, amber acid, L-1 in concentration of 4,0
mg/l proved as the growth factors which are favorably
influencing on plantlets’ regeneration and a qualitative
condition of microshoots of plum
The article gives a general assessment for meliorative state of soils at the rice irrigation systems in the Ros-tov region. The indices of soil salinity, alkalinity, sodicity, calium content in soil exchangeable com-plex of dark chestnut soils at different crop rotations and water loadings are afforded
The article presents the research results of the impact of amendment improving soil structure on soil upon sprinkler irrigation of agricultural lands. It is proposed to use artificial aggregation of soil for water erosion control via composition of structure-forming materials. The developed composition includes slagheap rock, bentonitic clay, claydite screenings, and shell limestone. Adjusted analytical relations of the impact of the amendment on runoff coefficient depending on the intensity of artificial rain upon irrigation of agricultural lands, slope, and water permeability have been revealed. Regression analysis of spectral surfaces has shown that slope of irrigation site has a significant impact on the increasing of runoff coefficient values, while correlation coefficient equals to 0.97. Water permeability has negative correlation, -0.85, with increasing the values of runoff coefficient. The relation between runoff coefficient and intensity of artificial rain is less strong, 0.89. We have determined that applying of the given amendment provides decreasing of runoff coefficient by 15 % depending on the slope of irrigation site, and by 20 % depending on rain intensity. Experts in the field of land reclamation can use obtained analytical relations for predicting surface soil loss when estimating the efficiency of amendment applying to control soil erosion activities at agricultural lands
The article considers one of the types of water erosion
– illuvial process, the redistribution of dispersed
particles in the soil profile due to irrigation. The
proposed description of the process of moving silt
particles in the soil profile is based on the theory of
viscose-plastic continuum motion
In this article the results of the research of quality characteristics of Russian and foreign rice varietieswere observed. A possibility of using the data in characterizing germplasm from the collection was discussed
Based on the analysis of the nature of some
flowering test crosses which have been resulted in
the hybridization with purposely chosen sterile
sources (analyzers), the new self - pollinated lines
of maize have been identified according to the
content of fertility-restorer genes of ‘C’ type of
CMS. Genotype of the line RD 257 -
rf4rf4rf5rf5Ff6Rf6 (class II), genotype of the line RD
245 - rf4 rf4 Rf5 Rf5 rf6 rf6 (class III), genotype of
the line RD 274 - rf4rf4Rf5Rf5Rf6Rf6 (class V),
genotype of the line RD 231 - Rf4Rf4rf5rf5Rf6Rf6
(class VI ) genotype of the line RD 261 -
Rf4Rf4Rf5Rf5Rf6Rf6 (class VII). The identification
of the content of the alleles of fertility - restorer
genes allows forecasting the nature of flowering
hybrid progeny resulted in the hybridization with a
known genotype. We have created a catalog of self
- pollinated lines of maize according to the fertilityrestorer
genes, which consists of 18 lines, which
have been studied in all the years of research. We
have identified the lines belonging to classes I, II,
III, V, VI, VII and VIII. During the transfer of
maize hybrids on a sterile basis the lines of classes I
and VIII are those ones which have been of great
interest. The self - pollinated lines KV 204, SP 286
(class I) are the reliable fixers of «C» type of CMS.
The progeny resulted in the hybridization with any
sterile lines is characterized by complete sterility.
The new self - pollinated lines KV 498, KV 272,
KV 227, SP 357, RD 261 (class VIII) are constant
natural fertility-restorers. They are able to fully
restore fertility in hybridization with any sterile
lines and in any growing conditions