scholarly journals Влияние подвоя и сорта на биометрические показатели окулянтов груши в питомнике

2019 ◽  
pp. 324-327
Author(s):  
Alexander Sotnik ◽  
Valentina Tankevich
Keyword(s):  
Comparative Study ◽  
Climatic Conditions ◽  
Stress Factors ◽  
Biological Traits ◽  
Natural Conditions ◽  
Average Output ◽  
Planting Material ◽  
The Crimea ◽  
Cultivation Technology ◽  
Growth Development

Одним из факторов повышения урожайности и рентабельности плодовых насаждений является использование клоновых подвоев, экологически адаптированных к природным условиям региона, устойчивых к стрессовым факторам, а также хорошо совместимых с большинством сортов. В статье представлены результаты исследований за 2009-2014 гг. по уточнению элементов технологии выращивания посадочного материала груши в условиях Крыма. Проведен анализ полученных данных сравнительного изучения перспективных и районированных клоновых подвоев для груши (ВА-29, ИС 2-10, КА 53, КА 86, КА 92) с сортами (Бере Арданпон, Изумрудная, Изюминка Крыма, Мария, Мечта, Отечественная, Таврическая) адаптированными для почвенно-климатических условий Крыма. Изучено их влияние на рост, развитие и выход саженцев. Исследуемый набор отвечает требованиям современного садоводства. Интенсивные насаждения необходимо закладывать стандартным посадочным материалом, отвечающим современным требованиям. Цель исследований - дать оценку подвоям и сорто-подвойным комбинациям груши в питомнике по комплексу хозяйственно-биологических признаков и выделить перспективные для совершенствования сортимента Крыма и юга России. В проведенных исследованиях в питомнике, по основным параметрам выделены подвои крымской селекции серии КА. Средний выход стандартных однолетних саженцев на исследуемых подвойных формах составил 77-85%.One of fruit yield and profitability drivers is the use of clonal rootstocks that have been environmentally adjusted to the natural conditions of a region. These rootstocks also must be resistant to stress factors and well-compatible with most varieties. The paper reports results of research of 2009-2014 aimed to clarify the elements of planting material cultivation technology in the conditions of the Crimea. We analyzed data of a comparative study of rootstock-scion combinations of promising and released clonal rootstocks for pear (VA-29, IS 2-10, KA 53, KA 86, KA 92) and pear varieties (‘Bere Ardanpon’, ‘Izumrudnaya’, ‘Izuminka Kryma’, ‘Mariya’, ‘Mechta’, ‘Otechestvennaya’, ‘Tavricheskaya’) that were adapted to the soil and climatic conditions of the Crimea, including Crimean breedings. The effect of the rootstocks on the growth, development and output of seedlings was studied. The study set meets requirements of modem horticulture. Intensive plantings should be established with a standard planting material that meets modern requirements. The goal of the study was to evaluate pear rootstock-and-scion combinations in the nursery based on a number of economic and biological traits and to reveal those promising for improvement of fruit assortment in the Crimea and in the south of Russia. As a result, ‘KA’ series rootstocks bred in the Crimea were sorted out for main parameters. The average output of standard yearlings on the study rootstocks was 77-85%.

Prospects for the Development of Decorative Nursery in the Crimea

2020 ◽  
Vol 11 (3) ◽  
pp. 634
Author(s):  
Anna Igorevna REPETSKAYA ◽  
Irina Gennadievna SAVUSHKINA ◽  
Ekaterina Vasilievna GORODNYAYA ◽  
Elena Alexandrovna KRAVCHUK ◽  
Stanislav Olegovich VISHNEVSKY ◽  
...  
Keyword(s):  
Climatic Conditions ◽  
Production Cycle ◽  
Master Plans ◽  
Piedmont Zone ◽  
Planting Material ◽  
The Crimea ◽  
Ornamental Crops ◽  
Urban Conditions ◽  
Trees And Shrubs

Potential volume of planting material market for ornamental crops was calculated based on the analysis of master plans for the development of Crimean cities taking into account standards for planting trees and shrubs. Data were obtained on territorial belonging, purpose, production cycle, and range of peninsula nurseries. It was proposed to use plus trees growing in urban conditions as mother trees for production of planting material adapted to the urban ecological and climatic conditions of this area. We have previously proposed a basic recommended assortment to green the Piedmont zone of Crimea. On its basis a GIS of plus trees of large landscape objects of Simferopol was developed.

scholarly journals Agrobiological Assessment of Varieties and Some Methods of Growing Garlic in the Forest-steppe Zone of the Republic of Ingushetia

2019 ◽  
Author(s):  
B B Galaev ◽  
M A Bazgiev ◽  
K Sh Badurgova ◽  
I A Gutseriev ◽  
M Kh Gandarov
Keyword(s):  
Steppe Zone ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
North Caucasus ◽  
Potential Productivity ◽  
The North ◽  
Planting Material ◽  
Cultivation Technology ◽  
The Republic

Increasing production and improving the quality of garlic products is an important production problem. Under the conditions of the vertical zonality of the North Caucasus with varying agroecological conditions, the yield of this crop largely depends on the technology of cultivation and the level of its intensity. Important factors determining the yield and quality of garlic products are varieties adapted to these agro-climatic conditions, quality planting material, cultivation technology that meets the requirements of the crop and the agro-climatic conditions of the region. Currently, the potential productivity of the varieties used in the republic is realized only by 30-40 percent. This is due to the insufficient development of technologies for their cultivation, taking into account the specific environmental conditions of the region. In this regard, research aimed at studying the basic laws of the formation of yield and product quality varieties of garlic is a pressing issue.

scholarly journals Jute Responses and Tolerance to Abiotic Stress: Mechanisms and Approaches

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1595
Author(s):  
Khussboo Rahman ◽  
Naznin Ahmed ◽  
Md. Rakib Hossain Raihan ◽  
Farzana Nowroz ◽  
Faria Jannat ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Stress Responses ◽  
Growth Yield ◽  
Climatic Conditions ◽  
Stress Factors ◽  
Growth Physiology ◽  
Abiotic Stress Factors ◽  
Hot And Humid Climates ◽  
Adverse Environmental Conditions ◽  
Cold Metal

Jute (Corchorus spp.) belongs to the Malvaceae family, and there are two species of jute, C. capsularis and C. olitorious. It is the second-largest natural bast fiber in the world according to production, which has diverse uses not only as a fiber but also as multiple industrial materials. Because of climate change, plants experience various stressors such as salt, drought, heat, cold, metal/metalloid toxicity, and flooding. Although jute is particularly adapted to grow in hot and humid climates, it is grown under a wide variety of climatic conditions and is relatively tolerant to some environmental adversities. However, abiotic stress often restricts its growth, yield, and quality significantly. Abiotic stress negatively affects the metabolic activities, growth, physiology, and fiber yield of jute. One of the major consequences of abiotic stress on the jute plant is the generation of reactive oxygen species, which lead to oxidative stress that damages its cellular organelles and biomolecules. However, jute’s responses to abiotic stress mainly depend on the plant’s age and type and duration of stress. Therefore, understanding the abiotic stress responses and the tolerance mechanism would help plant biologists and agronomists in developing climate-smart jute varieties and suitable cultivation packages for adverse environmental conditions. In this review, we summarized the best possible recent literature on the plant abiotic stress factors and their influence on jute plants. We described the possible approaches for stress tolerance mechanisms based on the available literature.

Beyond cultural barriers, Islamic mysticism and intercultural insights

2019 ◽  
Vol 2 ◽  
Author(s):  
Ali Asghar Mosleh
Keyword(s):  
Comparative Study ◽  
Climatic Conditions ◽  
Cultural Barriers ◽  
World Religions ◽  
Cultural Elements ◽  
Islamic Mysticism ◽  
Different Cultures ◽  
Historical Periods ◽  
Intercultural Philosophy

Mysticism has had a magnificent role in most cultures, particularly in cultures based upon world religions. Studies conducted in recent decades show that emergent mysticisms in different historical periods and territories, despite the great differences in terms of climatic conditions, historical experiences, language and other cultural elements, share similar roots and principles. One of the roles intercultural philosophy can play is to introduce a comparative study of these emergent mysticisms in different cultures in order to create an appropriate setting for dialogue and understanding between cultures. In this article we briefly examine the grounds of the emergence and development of Islamic mysticism (Sufism) in Iran and then discuss one example of its potential for intercultural insight and dialogue with other traditions.

Control Strategies for Multistage Solar Collector Systems

1988 ◽  
Vol 110 (3) ◽  
pp. 230-232
Author(s):  
C. Saltiel
Keyword(s):  
Comparative Study ◽  
Flow Control ◽  
Numerical Simulations ◽  
Control Strategy ◽  
System Performance ◽  
Solar Collector ◽  
Control Strategies ◽  
Climatic Conditions ◽  
High Threshold ◽  
Threshold Values

A comparative study of the yearly performance of multistage solar collector systems, (comprised of more than one collector type) with a single on/off flow control strategy for all the collectors and separate on/off controls for each collector stage, is performed. Detailed numerical simulations under a range of climatic conditions showed that there is little advantage in using individual collector controls over a single on/off control strategy when the systems operate at low collector thresholds, but differences in system performance can be quite significant at high threshold values. In addition, the choice of the single control strategy (i.e., which collector the strategy is based on) at low thresholds is not critical in terms of system performance.

scholarly journals Weed infestation in the crop rotations depending on the cultivation technology in the Crimea

2020 ◽  
Author(s):  
K.G. Zhenchenko ◽  
◽  
E.N. Turin ◽  
A.A. Gongalo ◽  
V.Yu. Ivanov ◽  
...  
Keyword(s):  
Crop Rotations ◽  
High Quality ◽  
Perennial Weeds ◽  
Trial Field ◽  
The Crimea ◽  
Weed Infestation ◽  
Cultivation Technology ◽  
Winter Crops ◽  
The Comparative Study ◽  
Direct Sowing

The stationary experiment on the comparative study of the direct sowing and traditional cultivation technology was laid in 2015–2016 at the trial field of the FSBSI “Research Institute of Agriculture of Crimea”. Two five-course crop rotations were taken as a base; all fields were included in the crop rotation. During the years of research, we observed mixed weed infestation. No matter what cultivation technology was applied, actual weed flora at the fields with winter crops was represented by overwintering and winter weeds; at the fields with spring crops – annual spring weeds. There were no rootstock grasses and rhizomatous perennial weeds or there were few of them at all fields in the experimental crop rotations both by traditional cultivation technology and direct sowing. Timely and high-quality weed control put the direct sowing on equal footing with the traditional one. It is advisable to change herbicides, their doses, as well as use tank mixes, after moving to a direct sowing system.

scholarly journals Productivity of sorghum crops depending on agrotechnical methods of cultivation in the regions of the Russian Federation (review)

2021 ◽  
Vol 22 (2) ◽  
pp. 155-166
Author(s):  
O. P. Kibalnik ◽  
I. G. Efremova ◽  
Yu. V. Bochkareva ◽  
A. V. Prakhov ◽  
D. S. Semin
Keyword(s):  
Russian Federation ◽  
Plant Density ◽  
Climatic Conditions ◽  
Row Spacing ◽  
Early Maturing ◽  
Cultivation Technology ◽  
The Russian Federation ◽  
Area Unit ◽  
Growing Conditions

The review considers the unique diversity and versatility of the use of sorghum crops. The dependence of the yield of biomass and grain of varieties and hybrids of sorghum crops on the applied elements of the crop cultivation technology is analyzed: width of row spacing, density of standing plants in different zones of sorghum sowing in the Russian Federation. A variety of soil and climatic conditions of sorghum cultivation regions differ in the temperature regime, the reserves of soil moisture before sowing, the level of soil fertility, which determines the need to select the optimal elements of technology that ensure the achievement of the highest yield of varieties per unit area with the lowest material and technological costs. The analysis of the ways of placing plants on the own area also indicates the significant role of varietal biological features in increasing the sorghum yield, the purpose of sowing, and the level of field contamination. With limited resources of productive moisture for high-yielding sorghum varieties with a powerful habitus, wide-row sowing with row spacing of 70 cm and the density of standing plants 80-350 thousand per 1 ha, depending on the variety. Low-growing early-maturing thin-stemmed forms of grain sorghum should be sown in the usual ordinary row way with a row spacing of 15 or 30 cm with plant density of 500-600 thousand/ha. Sudan grass varieties that can withstand high density of standing plants (depending on agroclimatic conditions – up to 1.0-3.0 million per 1 ha) are cultivated using the technology of spiked cereals. As the result of the literature data analysis, the following trend has been revealed: the drier the growing conditions, the greater the requirements for choosing the optimal parameters of agrotechnical methods of cultivating sorghum crops aimed at the reducing the number of plants per area unit considering the specific character of the region of sorghum sowing.

scholarly journals Creation of competitive varieties of melon and pumpkin with valuable economic trends

2021 ◽  
pp. 36-41
Author(s):  
M. S. Kornilova ◽  
D. P. Kurunina ◽  
G. V. Varivoda
Keyword(s):  
Powdery Mildew ◽  
Climatic Conditions ◽  
Matter Content ◽  
Stress Factors ◽  
Mass Selection ◽  
Dry Matter Content ◽  
Average Yield ◽  
Experimental Station ◽  
Economically Valuable Traits ◽  
New Varieties

Relevance. The soil and climatic conditions of the Lower Trans-Volga region are considered favorable for melon growing and make it possible to obtain high-quality products. The purpose of the research was to create new competitive varieties and hybrids of melon and pumpkin.Materials and methods. The object of the research is new varieties of melon and butternut pumpkin created at the Bykovskaya melon breeding experimental station. Melon cultivar Osen and pumpkin cv. Zhemchuzhina were used as standards. The methods of creation are intervarietal hybridization, individual and mass selection. During the growing season, appropriate observations and counts were carried out.Results. As a result of many years of breeding work at the Bykovskaya cucurbits selection experimental station, a melon cultivar 251 and a pumpkin cultivar 509 have been created. both producers and consumers. Therefore, the obtained varieties were evaluated for taste, yield, resistance to biological and abiofactors of the environment, dry matter content, fruit size, fruit and pulp color. During the comparative assessment of the accessions, it was determined that the new varieties of melon and pumpkin exceed the standards in terms of the main economically valuable traits. The average yield during the study, in the melon cultivar 251, exceeded the standard by 47.8%. In the pumpkin cultivar, the average yield for three years of research exceeded the standard by 69.6%. In terms of taste, the new melon variety was at the level of the standard, the cv. Osen. A variety of butternut pumpkin exceeded the standard in all quality indicators. The susceptibility to powdery mildew in the melon cultivar varied depending on the year of research. The melon sample showed resistance to anthracnose higher than the standard by 16.4 and 18.6%, over the years of study. In the pumpkin cultivar, resistance to powdery mildew and anthracnose was higher than the standard, on average by 34.9% to powdery mildew and by 28.6% to anthracnose. Thus, new varieties of melon and pumpkin meet the modern requirements of the industrial melon industry, are resistant to environmental stress factors, common diseases, and have economically valuable traits.

scholarly journals Comparative Study of Thyristor vs IGBT Based AC-DC Power Converter

2018 ◽  
Vol 17 (3) ◽  
pp. 89-102
Author(s):  
Md. Saiful Islam ◽  
Md. Rifat-Ul-Karim Shovon ◽  
Abdul Goffar Khan
Keyword(s):  
Comparative Study ◽  
Pulse Width ◽  
Output Voltage ◽  
Harmonic Distortion ◽  
Power Converter ◽  
Wave Shape ◽  
Average Output ◽  
Dc Power ◽  
Voltage Wave ◽  
The Relationship

This paper presents a comparative study of the application of Thyristor versus IGBT in AC-DC controlled power converter. Both simulation and practical experiment have been carried out to test the relationship between the average output voltage (Vdc) with firing angle (α, for Thyristor) and triggering pulse width (, for IGBT). Also the total harmonic distortion (THD) has been observed in both the cases. It is observed that IGBT based power converter introduces more harmonics in the system, in spite of more symmetrical output voltage wave shape.

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