scholarly journals Patterns of changes in productivity of the ‘Pamyati Uchitelya’ grape variety when varying the bush loading with shoots and bunches

2021 ◽  
pp. 141-146
Author(s):  
В.С. Петров ◽  
А.В. Фисюра ◽  
А.А. Марморштейн
Keyword(s):  
Air Temperature ◽  
Table Grape ◽  
Training System ◽  
Grape Variety ◽  
Planting Pattern ◽  
System A ◽  
Annual Total ◽  
High Yields ◽  
Maximum Air Temperature ◽  
Sum Of Active Temperatures

Приводятся экспериментальные данные по агробиологической реакции винограда сорта Памяти Учителя столового направления использования на изменение нагрузки кустов побегами и гроздями. Полевые исследования выполнены в Центральной агроэкологической зоне виноградарства Краснодарского края. Cхема посадки кустов - 3,5 × 3,5 м, формировка кустов - высокоштамбовый двуплечий кордон, подвой Берландиери × Рипариа SО4. Среднегодовая температура воздуха 12,5-13,0 °С, сумма активных температур 3900-4100 °С, максимальная температура во время вегетации - плюс 40°С, минимальная зимой опускается до минус 30 °С. Годовая сумма атмосферных осадков - 700-800 мм. Почвы малогумусные выщелоченные мощные черноземы. В таких агроэкологических условиях сорт показал высокую отзывчивость на оптимизацию нагрузки кустов побегами и гроздями. При нагрузке кустов побегами 18 шт./куст и гроздями 25 шт./куст средняя масса грозди достигает наибольшей величины и составляет 0,625 кг. Наибольшая урожайность товарного винограда (10,9 т/га) формируется при нагрузке кустов побегами и гроздями в количестве 24 и 44 шт./куст соответственно. При таких регламентах нагрузки кустов гроздь массой 0,393 кг имеет привлекательный товарный вид. Оптимизированный регламент нагрузки кустов побегами и гроздями в количестве 24 и 44 шт./куст рекомендуется применять в Центральной агроэкологической зоне виноградарства Краснодарского края для выращивания высоких урожаев сорта Памяти Учителя на подвое Берландиери × Рипариа SО4. The experimental records on agrobiological response of the ‘Pamyati Uchitelya’ table grape variety to changes in the loading of bushes with shoots and bunches are presented. Filed experiments were carried out in the Central agroecological viticultural zone of the Krasnodar Territory. The planting pattern of bushes is 3.5 × 3.5 m, the training system - a high-bole bilateral cordon, the rootstock - ‘Berlandieri × Riparia SO4’. The average annual air temperature of the zone is 12.5-13.0 °C, the sum of active temperatures is 3900-4100 °C, the maximum air temperature during the growing season is +40 °C, the minimum air temperature in winter goes to -30°C. The annual total precipitation is 700-800 mm. The soils are low-humus, leached deep chernozems. The variety showed heavy response to optimization of bush loading with shoots and bunches under these agroecological conditions. When bushes are loaded with shoots of 18 pcs/bush and bunches of 25 pcs/bush, the average bunch weight reaches the highest value of 0.625 kg. The highest cropping capacity of commercial grapes (10.9 t/ha) is achieved with loading of bushes with shoots and bunches in the amount of 24 and 44 pcs/bush, respectively. With such regulations of bush loading, a bunch of 0.393 kg has attractive marketable presentation. The optimized regulation of bush loading with shoots and bunches in the amount of 24 and 44 pcs/bush is recommended for using in the Central agroecological viticultural zone of the Krasnodar Territory for growing high yields of the ‘Pamyati Uchitelya’ variety on the ‘Berlandieri × Riparia SO4’ rootstock.

scholarly journals Influência da Cobertura Plástica Sobre a Temperatura em Parreirais no Vale do Submédio São Francisco (Influence of the Plastic Cover on the Vineyard Temperature in the Submédium São Francisco Valley)

2011 ◽  
Vol 4 (1) ◽  
pp. 45 ◽  
Author(s):  
Paulo César da Silva Lima ◽  
Mário de Miranda Vilas Boas Ramos Leitão ◽  
Pedro Vieira de Azevedo
Keyword(s):  
Wind Speed ◽  
Air Temperature ◽  
Canopy Cover ◽  
Table Grape ◽  
Maximum Temperature ◽  
Grape Variety ◽  
A Value ◽  
Protected Cultivation

O presente trabalho teve como objetivo avaliar a influência da cobertura plástica sobre a temperatura do ar em parreirais no Vale do Submédio São Francisco. A pesquisa foi conduzida em parreirais produtivos de uva de mesa variedade Festival em Petrolina, PE (09º 06’ 14’’ S; 40º 29’ 52” W; altitude 360 m), no período de 17/09/2010 a 10/10/2010, durante a fase de maturação e colheita da uva. Foram empregados três tratamentos, cada um, representado por 12 m de fileira descritos a seguir: tratamento 1 - sem cobertura plástica (SCob); tratamento 2 - com cobertura plástica posicionada a 50 cm acima do dossel (CP50); e tratamento 3 - com cobertura plástica posicionada a 100 cm acima do dossel (CP100). Medidas de temperatura do ar e velocidade do vento foram efetuadas a 20 cm acima e abaixo do dossel, esta última, na altura média dos cachos. Os resultados mostraram que o tratamento CP50 proporcionou aquecimento acentuado na camada do ar sobre o dossel do parreiral com a temperatura máxima atingindo 45,4 °C, valor 10,1 °C maior do que a temperatura máxima no tratamento SCob e 7,3 °C maior do que a temperatura máxima no tratamento CP100. Isso evidenciou que a altura da cobertura plástica sobre o dossel do parreiral influencia no seu microclima e deve ser levada em consideração quando do planejamento de sua utilização.Palavras-chave: Uva de mesa, Cultivo Protegido, Aquecimento, Parreiral.  Influence of the Plastic Cover on the Vineyard Temperature in the Submédium São Francisco Valley  ABSTRACTThis study evaluated the influence of the plastic cover on the air temperature in vineyards in the region of the São Francisco Valley. The study was conducted in vineyards of table grape variety Festival in Petrolina, PE, Brazil (09º 06 '14";;;;;;;; S; 4 ° 29' 52";;;;;;;; W; elevation 360 m) in the period from Sep./17/2010 to Oct./10/2010. The following treatments were evaluated, each represented by 12 m of row: treatment 1 - no plastic cover (SCob); treatment 2 - plastic cover 50 cm above the canopy (CP50); and treatment 3 - plastic cover 100 cm above the canopy (CP100). Measurements of air temperature and wind speed were made at 20 cm above and below the canopy around the location of grapes bunches. The results showed that the plastic at the height of 50 cm provided a dramatic warming in the layer of air above the vineyard canopy with the maximum temperature reaching 45.4 °C which represents a value 10.1 °C greater than the maximum temperature without the canopy cover and 7.3 °C higher than the maximum temperature of the canopy of 100 cm. This evidence showed the influence of de height of the plastic cover on the canopy of the vineyard microclimate and it has to be considerade when planning their use. Keywords: Grape table. Protected cultivation. Heating. Vineyard  

scholarly journals Ampelographic description, ampelometric screening and agrobiological characteristics of the Donus grape variety

2020 ◽  
Vol 210 ◽  
pp. 05008
Author(s):  
Alexander Maistrenko ◽  
Lyudmila Maistrenko ◽  
Nadezhda Duran ◽  
Natalia Matveeva
Keyword(s):  
Negative Temperature ◽  
Sugar Accumulation ◽  
Grape Variety ◽  
Point Scale ◽  
Bisexual Flower ◽  
Absolute Minimum ◽  
Planting Pattern ◽  
Greenish Yellow ◽  
Production Period ◽  
Sum Of Active Temperatures

The agrobiological and ampelographic characteristics of the Donus interspecific grape variety are given. A variety of universal use, average ripening period, the duration of the production period for 2010-2019 was 146 days with the sum of active temperatures 3297 0C. The variety is characterized by high winter hardiness. With a sum negative temperature of 586 0C and an absolute minimum of minus 25 0C, the live buds from 49% to 72.8%. Fruit shoots 90-100%, fruitfulness ratio 1.8. Yield / bush ≥ 6.9 kg with a planting pattern of 3 m × 1.5 m. It has bisexual flower, clusters of medium density, cylindro-conical with 1 -2 wings, weighing 212 g. The berry is oval, greenish-yellow, weighing about 3 g. The parameters of the berry are 14.6 × 13.4 mm. The pulp is juicy with muscat aroma. Differs in moderate sugar accumulation with moderate acidity. Resistance to mildew and oidium is high. The variety has been defined as a donor of mildew resistance. It is used for the production of juices, dry and sparkling wines, fresh consumption. The wine degustation evaluation is on average 8.5 points on a ten-point scale. The Donus is a perspective variety for commercial vitiviniculturel.

scholarly journals Selected Aspects of Indoor Climate in a Passive Office Building with a Thermally Activated Building System: A Case Study from Poland

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 860
Author(s):  
Piotr Michalak
Keyword(s):  
Air Temperature ◽  
Thermal Conditions ◽  
Office Building ◽  
Normal Operation ◽  
Indoor Climate ◽  
Thermally Activated ◽  
System A ◽  
Warm Sensation ◽  
Building System ◽  
Heating Energy Consumption

Modern buildings with new heating, ventilation and air conditioning (HVAC) systems offer possibility to fit parameters of the indoor environment to the occupants’ requirements. The present paper describes the results of measurements performed in an office room in the first Polish passive commercial office building during four months of normal operation. They were used to calculate parameters describing thermal comfort: vertical air temperature profile, floor surface temperature, predicted mean vote (PMV) and predicted percent of dissatisfied (PPD). Obtained results confirmed good thermal conditions in the analysed room. The average temperature of the floor’s surface varied from 20.6 °C to 26.2 °C. The average vertical air temperature, calculated for working days, was from 22.5 °C to 23.1 °C. The temperature difference between the floor and 5 cm below the ceiling was from −0.9 °C to 6.3 °C. The PMV index varied from 0.52 to 1.50 indicating ‘slightly warm’ sensation, in spite of ‘neutral’ reported by employees. Also measured cooling and heating energy consumption was presented. The performed measurements confirmed the ability of thermally activated building system (TABS) to keep good thermal conditions.

scholarly journals Changes in Air Temperature and Snow Cover in Winter in Poland

Atmosphere ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 68
Author(s):  
Arkadiusz M. Tomczyk ◽  
Ewa Bednorz ◽  
Katarzyna Szyga-Pluta
Keyword(s):  
Snow Cover ◽  
Air Temperature ◽  
Winter Season ◽  
Primary Objective ◽  
Climatic Conditions ◽  
Cover Depth ◽  
North Eastern ◽  
Northern Regions ◽  
Maximum Air Temperature ◽  
Snow Cover Depth

The primary objective of the paper was to characterize the climatic conditions in the winter season in Poland in the years 1966/67–2019/20. The study was based on daily values of minimum (Tmin) and maximum air temperature (Tmax), and daily values of snow cover depth. The study showed an increase in both Tmin and Tmax in winter. The most intensive changes were recorded in north-eastern and northern regions. The coldest winters were recorded in the first half of the analyzed multiannual period, exceptionally cold being winters 1969/70 and 1984/85. The warmest winters occurred in the second half of the analyzed period and among seasons with the highest mean Tmax, particularly winters 2019/20 and 1989/90 stood out. In the study period, a decrease in snow cover depth statistically significant in the majority of stations in Poland was determined, as well as its variability both within the winter season and multiannual.

Micro-climatological influences on temperature condition in an old people’s home in Helsinki, Finland, caused by extended heat-waves 

2021 ◽  
Author(s):  
Achim Drebs ◽  
Tim Sinsel ◽  
Kirsti Jylhä
Keyword(s):  
Air Temperature ◽  
Heat Waves ◽  
Daily Maximum ◽  
Old People ◽  
Concrete Walls ◽  
Meteorological Forcing ◽  
Clear Sky ◽  
Wave Event ◽  
Construction Type ◽  
Maximum Air Temperature

<p>In our research we describe the micro-climatological influences of two heat-waves around and the air temperature development in a certain old people’s home in Helsinki, Finland. The stand-alone six-storey concrete building was erected in the late 1970’s and represents the prevailing construction type of this area. The building is located on a slightly southwards declining slope.</p><p>The first simulation used real meteorological forcing-data from the heat-wave event in summer 2018, which lasted from July, 13<sup>th</sup> until August, 5<sup>th</sup>. In this period the daily maximum air temperature reached almost every day 25 °C and more, sometimes even more than 30 °C. All air temperature, wind, humidity, and solar radiation (cloudiness) measurements were conducted at a near-by synoptical weather station.</p><p>The second simulation used fourteen-day constructed meteorological forcing-data, based on a clear-sky, slowly increasing air temperature, higher than normal humidity, and low wind conditions assumption starting on July, 13<sup>th</sup> (day 194 of the year).</p><p>We used the holistic ENVI-met simulation soft-ware to simulate the physical environment around the old people’s home and especially the energy fluxes inside the concrete walls to explain the needs for cooling demands.</p><p>The research is part of the HEATCLIM-project financed by the Academy of Finland Science Program CLIHE (2020-2023).</p>

scholarly journals Polyphenol- and anthocyanin content changes effected by different fermentation- pressing and aging technologies

2014 ◽  
Vol 20 (3-4) ◽  
Author(s):  
E. Horváth ◽  
L. Kocsis ◽  
A. Bakó
Keyword(s):  
White Wine ◽  
Training System ◽  
The Other ◽  
Anthocyanin Content ◽  
Alkaline Ph ◽  
Grape Variety ◽  
Brown Forest Soil ◽  
Polyphenol Content ◽  
Testing Experiment ◽  
East West

Different grape processing, fermentation and aging technologies were compared in our study on the white wine-grape variety Grüner Veltliner between 2012 and 2014 in Hungary,Cserszegtomaj. The vines are grown on brown forest soil on dolomite bedrock, stocks were planted 3x1 m row and vine space, respectively in our experimental area. The soil has slightly alkaline pH, the orientation of the vine rows are East-West. The training system is modified Guyot cordon, with 1 m trunk height and cane pruning method. After the harvest half of the yield has been put into the de-stemmer crusher before pressing while the other half has been pressed immediately (whole bunches). From the filtered and bottled wine anthocyanin, and polyphenol content was measured in 2013 and 2014. Another enological technology testing experiment has been set on aging of Grüner Veltliner in 2013. The wine was fermented with addition of fine lees from juice sedimentation. Traditional (racking only), battonage and fast ready-made aging technologies have been set together, each treatment in three replicates were observed.

scholarly journals Individual factors that keep online English learners from greater success: the case of HCMC Open University

2020 ◽  
Vol 9 (2) ◽  
pp. 21-39
Author(s):  
Nguyen Chau Bich Tuyen
Keyword(s):  
English Learners ◽  
Teaching And Learning ◽  
Online Training ◽  
Training System ◽  
Open University ◽  
Academic Confidence ◽  
Technology Learning ◽  
Grounded Theory Method ◽  
System A ◽  
English Training

A variety of challenges in online training are found in numerous learning environments such as cultural background, accessibility, technology, learning content and so on. In the developed or western societies, the online training has been developing in a stable way for decades, while numerous typical obstacles seem to be visible in developing countries including student support, flexibility, teaching and learning activities, access, academic confidence, localization and attitudes (Andersson, 2008). These difficulties are not excluded in the context of online English training system (OETS) at Ho Chi Minh City Open University (HCMCOU). Although this institution ever makes effort to limit these possible challenges for ages, plenty of impactful issues leading to serious difficulties of OETS also obviously exist. Hence, to fully explore the key factors that cause greater barriers in this training system, a qualitative on traditions of bioghaphy and grounded theory method was applied. The qualitative data is to be collected from the responses on openended questionaire sent for 30 online English majors and indirect interviews with 5 salient learners were also conducted. The findings show that some minor limitations of learners such as negative learning habits, willpower shortage and neglected learning perception lead to greater barriers of online English training.

scholarly journals Fuzzy logic simulation of oat yield after using hydrogel and nitrogen biopolymer management

2020 ◽  
pp. 1319-1327
Author(s):  
Osmar Bruneslau Scremin ◽  
José Antonio Gonzalez da Silva ◽  
Ivan Ricardo Carvalho ◽  
Ângela Teresinha Woschinski De Mamann ◽  
Odenis Alessi ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Air Temperature ◽  
Biomass Yield ◽  
New Technologies ◽  
Block Design ◽  
Fuzzy Model ◽  
Logic Simulation ◽  
Efficient Tool ◽  
Randomized Block Design ◽  
Maximum Air Temperature

The fuzzy logic is an efficient tool for simulation and validation of new technologies in agriculture. The objective of the study is to adapt the fuzzy logic model for simulation of biomass and oat grain yield by nitrogen involving the nonlinearity of the maximum air temperature in the conditions of use of the biopolymer hydrogel, considering high succession systems and low release of residual N. The study was conducted in 2014 and 2015, in a randomized block design with four replicates in a 5 x 5 factorial. Five hydrogel doses (0, 30, 60, 90 and 120 kg ha-1) were added in the groove next to the seed; and 5 doses of N-fertilizer (0, 30, 60, 90 and 120 kg ha-1) applied at the fourth expanded leaf stage, respectively. The cultivar was URS Corona. The pertinence functions and the linguistic values established in the input and output variables to simulate the biomass yield and oat grains in the succession systems are adequate observed productivity. The fuzzy model makes it possible to estimate the biomass and oat grains productivity efficiently under the conditions of use of the hydrogel as a function of the nitrogen doses and maximum air temperature, adding to the existing models of simulation.

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