Name
Doroshenko Tatyana Nikolayevna
Scholastic degree
•
Academic rank
professor
Honorary rank
—
Organization, job position
Kuban State Agrarian University
Web site url
—
Articles count: 18
The researches were about availability of the appliance
of some physiology active matters –
aminoethoxyvinylglycine (AVG) and melafen for
optimization of yield formation for orange and apple
trees. Field researches were conducted in 2011-2012 in
commercial orchards in the region of Gingin in the
Western Australia (climate of the region –
Mediterranean, the soil – sandy) and in 2015-2016 in
apple orchards of the botanical garden of Kuban State
Agrarian University (climate of the region - moderately
continental), started in 2006. The article shows
expediency of using inhibitor biosynthesis of ethylene of
AVG at a concentration from 20 to 60 mg /l when the
orange fruit size was 3.0 cm, and the growth regulator
"Melaphen" (concentration 1˟10- 9 М) in the second half
of the vegetation period of apple plants (for 45-50 days
before harvest). The use of treatments in these terms
reduces pre-harvest fruit drop and thus increase the
economic productivity of fruit trees (apple in - up to
11%). It is noted that a variety of orange called
Washington Navel is more responsive to the increased
concentration of AVG, than the variety of Lane Late
(optimal concentration of 60 and 20 mg / l,
respectively). We have shown a wide spectrum of action
of the treatment "Melaphen" on apple plants. Along with
the retention of the fruit on the tree, it enhances the
activity of plant growths in summer and some
weakening concerning tabs flower buds as well as the
displacement of their development. However, the use of
melaphen in this period increases the efficiency of the
formation of various parts of flowers and fertilization in
the next season. With such results of the adjustment
processes of vegetative growth and generative
development of plants under the influence of
physiologically active substances, it will ensure the
formation of relatively high and regular yields of fruits
The researches are devoted to the determination of physiological parameters of grafted apple-trees joining with the level of their resistance to the change of soil рН. The experiments were carried out in the conditions of lysimetric experience with the soils use characterizing by different value of рН. The scheme of experience included the following variants of soil medium reaction: neutral (рН 7,3), typical for black soils of plain part of the region (control); weak-acid (рН 6,2) existing in soils of foothill zone of the region (grey and brown forest); strong-acid (5.1) typical for brown forest soils; weak-alkaline(рН 8.3) occurring in black soils of south and sod-carbonate soils, strong-alkaline ( рН 8.8) typical for maternal types of many black soils. There were studied the varieties of apple-trees Prima, Florina and Renet Simirenko grafted on stocks M9 and MM106 and as well as corresponding the non-grafted stocks. The reaction of grafted apple-trees on change of рН of soil is specific and depends on adaptive possibilities of grafting components: varieties and stocks. At the stock M9 we can see the active growth of shoots and roots in the meaning of pH values from 5,1 (strong-acid reaction) to 7,3 (neutral). Plants MM106 prefer neutral (pH 7,3) and weak-alkaline (pH 8,3) soils. Independently from stocks for the variety Florina the most favorable weak-acid soils and the variety Prima – mainly neutral. The variety Renet Simirenko possesses enough high and stable functional activity in the conditions of wide range of the medium reaction: from very acid to alkaline one
The Codling moth monitoring, conducted with the help of injured fruits count and mail moths capture (with pheromone traps), is given in the article.
We consider that pheromone traps reliably register the beginning of the Codling moth large flight (of each generation) at high temperature and little precipitation.
The pheromone traps efficiency decreases at rather low temperature and showers. In organic and ecological orchards low density populations of injurious mites are under control of their natural enemies.
There was determined that the heat resistance of fruit and decorate plants depends not only on their morpho-biological peculiarities but on the specific of temperature stressor revealing in corresponding years. There were selected three types of influence of high air temperature on plants on plants during summer period and three components of heat resistance respectively. There were cited possible mechanisms of plant adaptation to overheat. There were cited diagnostic criteria of their heat resistance
These studies are devoted to determining the characteristics of changes in some physiological and biochemical parameters of sweet cherry plants that arise under the influence of the main damaging factor of the spring period - frost and associated with the resistance of the plant organism to the action of stressor. The studies were carried out in 2012 and adjacent 2018-2019 in the fruiting plantations of cherries of the Kuban zone located on horticultural soils: leached chernozem and alluvial meadow. We studied sweet cherry varieties of different resistance to frost. Samples for analysis were selected according to the background of naturally prevailing positive air temperatures. The plant material was frozen in the Binder climate chamber KB 53 for 4 hours at a temperature of 2.5 ± 0.2 ° C. According to the results of the experiment, sweet cherry plants that differ in early flowering are more susceptible to the temperature stressor in the spring in comparison with late flowering plant organisms. Meanwhile, the resistance of plants to frost depends not so much on the date of differentiation of the generative buds, but on the efficiency of the physiological and biochemical activation mechanisms under the influence of an unfavorable synthesis factor in the flowers of indolylacetic acid, which is responsible for the efficiency of the onset of fruit formation, and ultimately a more complete implementation potential productivity. An important indicator of the stability of a plant organism is the degree of change in the content of this phytohormone