scholarly journals The study of multivariance in realization of the plum graft and rootstock combinations adaptivity systems to the changing conditions of environment in the Krasnodar region with the use of digital technologies

2021 ◽  
Vol 34 ◽  
pp. 01002
Author(s):  
Irina Dragavtseva ◽  
Anna Kuznetsova ◽  
Igor Savin ◽  
Anna Klyukina

The study of rootstocks group, providing the average vigor of growth for the grafted fruit plants, discovered their significant influence on the frost hardiness of the “graft-rootstock” system. The adaptivity of the plum varieties in the different graft and rootstock combinations was studied according to the “frost hardiness” criterion in the stages of the winter and spring development of the flower buds. The computer maps of the plum efficient allocation were created on the studied rootstocks, permitting to lay down the plantings with the lesser risks in the terms of climate fluctuation. It was established, that in the south of Russia the climatic conditions to cultivate Stanley variety on PK SK 1 rootstock, as compared with the rootstock of cherry plum seedling, mostly often used in industrial plantings of plum are mostly favorable. The conducted research contributes to isolation and allocation of the most adaptive graft and rootstock combinations based on their frost hardiness and, consequently, regularity of fruit-bearing and yielding capacity.

2018 ◽  
Vol 1 (94) ◽  
pp. 21-26
Author(s):  
M. L. Tyrus

Soil tillage and fertilization level are important in the system of agro-technical measures that increase soil fertility and sugar beets productivity. Today the cultivation of this crop requires a great deal of expense, therefore, there is a need for a wider study of the use of cheap soil cultivation, soil protection, energy-saving soil tillage technologies and appropriate ferti-lization levels. Under western Forest-Steppe of Ukraine conditions, investigations were conducted on dark grey podzolic light loamy soils where the influence of tillage models and fertilization levels on the formation of sugar beets root crops was studied. Shallow no-plow tillage of the soil on 14-16 cm is expedient to use as a main tillage under sugar beets. Under favorable weather and climatic conditions, it can provide yielding capacity at the level of deep fall plowing. The use of shallow no-plow tillage helped to increase the yielding capacity of sugar beet roots relative to plowing by 28-30 cm for 1.3 t / ha and the biological sugar output – for 0.2 t / ha. Then the sugar content was by 0.1% higher in the application of deep fall plowing on 28-30 cm. The optimization of the system of sugar beets fertilization allows ensuring the growth of the yielding capacity of root crops. It is established that the application of fertilizer norm N300P225K350 provides the yielding capacity at the level of 90 t / ha. The sugar content of root crops at the given fertilizer rate was the lowest in the experiment - 16.5 – 16.6%. Thanks to the high yielding capacity of root crops in terms of N300P225K350, the sugar harvesting was the highest and depending on the method of basic soil tillage was 14.95 – 14.79 t / ha. That is in 3.2 times more as to the control, in 1.3 times more than the norm of N180P135K210 and in 1.1 more than the fertilization level N240P180K280.


Weed Science ◽  
1988 ◽  
Vol 36 (6) ◽  
pp. 784-786 ◽  
Author(s):  
Stephen J. Harvey ◽  
Robert M. Nowierski

The growth and development of leafy spurge (Euphorbia esulaL. #3EPHES) collected during postsenescent dormancy and grown in the greenhouse was increasingly stimulated by chilling treatments longer than 14 days duration at 0 to 6 C. Production of stems with flower buds, primary flowers, and secondary flowers was greater in plants chilled for 42 days or more. The effects of chilling on total number of stems, number of strictly vegetative stems, or number of stems with vegetative branching were not significant. The height of the tallest stem per pot was influenced by chilling longer than 42 days. Growth rate also increased as a function of chilling duration. Based on our findings, we believe that there is little possibility that any significant growth can occur in the postsenescent period because of the prevailing climatic conditions found in areas of leafy spurge distribution in North America.


2021 ◽  
Vol 67 ◽  
pp. 50-59
Author(s):  
V. R. Bashirova ◽  
E. M. Feschenko

The article presents data of agrobiological evaluation (2018-2021) of plum collection samples of Orenburg branch of Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery. The research was aimed at identifying varieties and forms with the best characteristics of winter hardiness, drought resistance, productivity. In the Orenburg Urals, breeding development measures aimed at increasing the adaptability and productivity of plum plantations are appropriate. According to the results of a comprehensive assessment of productivity and adaptability, promising plum varieties have been identified. The best adaptability to adverse weather and climatic conditions of the winter period was characteristic of plum varieties Kuyashskaya and Vega. According to the weight of the fruit, Antonina and Kuyashskaya varieties (24,26 g and 23,19 g) stood out as promising plum varieties. The highest productivity index was found in the plum varieties Svetlana (12,46 kg) and Nadezhda (11,48 kg), the yield of these varieties was 5 and 5,4 t/ha, respectively. The Khabarovsk early and Svetlana varieties were characterized by the greatest accumulation of dry soluble substances –17,93 and 16,72 %. The highest total acidity (1,78 %) and the ascorbic acid content (9,46 mg%) were marked in the Svetlana variety. Characteristics of the water regime were the best in forms 12-7, 11-10 and varieties Antonina, Kuyashskaya. The identified adaptive plum varieties can be recommended for the expansion of the zoned assortment on the territory of the Orenburg Urals.


1993 ◽  
Vol 23 (11) ◽  
pp. 2452-2454 ◽  
Author(s):  
B.J. Hawkins ◽  
S.E. McDonald

In early January, seedlings of yellow cypress (Chamaecyparisnootkatensis (D. Don) Spach) were placed in controlled-environment chambers under constant, increasing, and decreasing photoperiods. Seedlings from all treatments were assessed for frost hardiness at 2-week intervals using the freeze-induced electrolyte leakage method. Seedlings subject to increasing day lengths began to deharden immediately and at a greater rate than seedlings under a constant photoperiod. Seedlings in the decreasing photoperiod treatment maintained maximum hardiness for 42 days and then began to deharden spontaneously, although photoperiod continued to decrease. Once dehardening began in this treatment, it proceeded at the fastest rate of all treatments. These results indicate that photoperiod has a significant influence on the initiation and rate of dehardening in yellow cypress, and maximum hardiness cannot be maintained indefinitely.


2012 ◽  
pp. 291-296
Author(s):  
L. Szalay ◽  
SZ. Németh ◽  
B. Timon ◽  
GY. Végvári
Keyword(s):  

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 493a-493
Author(s):  
Agnes M.S. Nvomora ◽  
Patrick H. Brown

Fruit set is a major determinant of nut productivity. Boron has been shown to have a significant influence on flowering and fruit set in a number of crops but less is reported on almond. This paper presents results of foliar application of a B commercial product, Solubor(20.5% B) at a rate of 1,2,3lb/100 gallons to `Butte' and `Mono' almond cultivars Boron at 1 and 2lb increased fruit set in both open and hand pollinated trees by over 100% while 3lb was less effective. The resultant B concentration in flower buds was correlated to B concentration in flowers (R2=0.58) and immature fruits (R2=0.6) but not to summer and fall leaf, pistil, and pollen B concentration or fruit set.


2020 ◽  
Vol 84 ◽  
pp. 03003
Author(s):  
Anna Smirnova ◽  
Irina Zaychenko ◽  
Irina Bagaeva ◽  
Polina Gorshechnikova

The article substantiates the need to apply training and retraining programs for personnel for permanent work in the Arctic using digital technologies, namely VR / AR / MR technologies. The geopolitical features of the Arctic zone, difficult climatic conditions do not allow directly practicing the development of professional competencies and, therefore, require the introduction of a multi-stage system of personnel training using technologies of approximate reality. Such requirements for the personnel training system predetermine the need to search for relevant digital technologies that can create conditions that are as close as possible to the conditions of professional activity in hard-to-reach Arctic regions. When forming a personnel training / retraining system for oil and gas enterprises, in addition to the specified specific working conditions, it is also necessary to take into account the sectoral features of oil and gas enterprises, which also forms a number of functional requirements for the selection of relevant digital tools, the main of which for personnel training can be considered immersive technologies. Based on the above, the paper analyzes the use of immersive technologies by oil and gas enterprises, a comparative analysis of the directions of using immersive technologies in personnel training at oil and gas enterprises, identifies the positive and negative aspects of using VR / MR / AR technologies.


2021 ◽  
Vol 285 ◽  
pp. 02041
Author(s):  
Grigory Pischulin ◽  
Lybov Esaulova

For the rapid distribution and successful cultivation of beans, it is necessary to develop methods of cultivation technology in accordance with the soil and climatic conditions of Krasnodar region. In this regard, the aim of this work was to study the efficiency of irrigation, various doses of mineral nutrition and the use of the biological product Nitragin KM on grain beans crops. The effect of pre-sowing application of mineral fertilizers under irrigation and rainfed conditions on phenological, morphological traits, yield and productivity of grain beans variety Yuzhanka has been studied. Analysis of the data on the yield of beans seeds showed that the most effective agricultural method for seed production of this crop is the introduction of mineral fertilizers on drip irrigation. With an increase in the level of mineral nutrition, the seed multiplication factor increased from 30 to 45 pcs/pcs on dry land and from 50 to 69 pcs/pcs during irrigation. The application of mineral fertilizers contributed to an increase in yields both in rainfed and irrigated conditions. The highest yield of bean seeds of variety Yuzhanka was obtained with the use of fertilizers at a dose of N30P30K30 (1,77 t/ha on dry land and 3,04 t/ha on irrigated plots).


Author(s):  
Z. Е. Ozhereleva ◽  
А. А. Gulaeva

Due to unstable weather conditions at the beginning initially the vegetation period of sweet cherry variety are exposed to stress factors. In this paper the experimental studies were summarized on the resistance of a cherry variety to spring frosts during 2016–2017. The researches were conducted in the laboratory of resistance physiology of fruit crops at the All Russian Research Institute of Fruit Crop Breeding (VNIISPK). Cherry cultivars developed at the VNIISPK were investigated. The main aim of the research was to study cherry variety the spring frost and introduced plants and to reveal the plants resistant to climatic conditions of at spring period in the middle zone of Russia. The resistance of cherry cultivars to spring frosts for rapid diagnostics was used by artificial freezing. Early in May, -1°C, -2°C and -3°C frosts were modeled in a climatic chamber. It was determined that in flower buds and opened flowers cherry the pistils perished from the frost while stamens remained undamaged. The resistance of generative organs in cherry cultivars ‘Podarok Uchitelyam’, ‘Proshalnaya’ ‘Shokoladnica’ studied to spring frost was identified as - 1°C. The flower buds in all cherry cultivars were not damaged. Further temperature lowering intensified before -2°С и -3°С the damages of flowers and flower buds. As a result of the investigation the significant varietal variability in hardiness to spring frosts -3°С. The potential a resistance have valued to negative temperature of generative organs beside under study cherry cultivars. The experiment allowed revealing the largest biological potential of resistance to spring frosts developed at the VNIISPK was investigated in ‘Shokoladnica’.


Author(s):  
Владислав Александрович Маштаков ◽  
Евгений Васильевич Бобринев ◽  
Елена Юрьевна Удавцова ◽  
Андрей Александрович Кондашов

Проведено изучение показателей оперативного реагирования (скорости следования, времени прибытия первого подразделения, уровня прикрытия) подразделений пожарной охраны для населенных пунктов Краснодарского края и Свердловской области. Выделены города, в которых следует особое внимание уделить совершенствованию функционирования пожарной охраны с целью доведения времени прибытия первого подразделения до нормативного значения. There was carried out the investigation of operational response indicators (speed of movement, first unit arrival time, coverage rate) of fire service units at settlements of the Krasnodar Region and the Sverdlovsk Region. There were highlighted the cities in which it is necessary to improve fire service activities in order to make the first unit arrival time closer to the normative value.


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