It is possible to predict Sangiovese wine quality through a limited number of variables measured on the vines

OENO One ◽  
2010 ◽  
Vol 44 (4) ◽  
pp. 207 ◽  
Author(s):  
Pierluigi Bucelli ◽  
Edoardo Antonio Costantino Costantini ◽  
Paolo Storchi
Keyword(s):  
Accumulation Rate ◽  
Sugar Content ◽  
Research Work ◽  
Multivariate Regression Analysis ◽  
Sugar Accumulation ◽  
Wine Quality ◽  
Research Activity ◽  
Wide Variability ◽  
Selection Of

<p style="text-align: justify;"><strong>Aims</strong>: The research work aimed at creating and testing a method to evaluate vine performance of Sangiovese (VPS), in particular, a method able to predict the potential oenological result through a limited number of variables measured on the vines.</p><p style="text-align: justify;"><strong>Methods and results</strong>: A matching table was created on the basis of literature and the experience acquired over twenty years of research activity on Sangiovese vine and wine quality in Tuscany, which allowed the selection of eight viticultural parameters and three VPS classes. In order to validate the matching table, a specific experiment was conducted during the years 2002 and 2003 in 10 vineyards (selected from 7 farms) representative of the main soils and climates of the vine cultivation areas of the Province of Siena (Italy). The experimental results validated the proposed matching table through a non parametric statistical analysis. A multivariate regression analysis between wine sensory evaluation (score) and viticultural parameters significantly predicted wine quality even with only 4 grape parameters (<em>P</em> &lt; 0.05).</p><p style="text-align: justify;"><strong>Conclusion</strong>: It was possible to predict VPS by means of a matching table based upon eight simple viticultural parameters. The reliability of the wine quality prediction increased proportionally according to the number of viticultural parameters, but remained rather high (R<sup>2</sup> = 0.606) when taking into account only sugar content, sugar accumulation rate, mean berry weight, and extractable polyphenol index (EPI).</p><p style="text-align: justify;"><strong>Significance and impact of the study</strong>: It is now possible to predict the quality of Sangiovese wines with a few selected grape parameters. Because of the wide variability in soil and climatic condition of the viticultural areas of the Province of Siena, where the method was developed, and the strong climatic contrast between the years when the method was validated, the use of both matching table and multiple regression is recommended for VPS prediction in Mediterranean environments.</p>

scholarly journals Agrobiological and wine quality traits of Vitis vinifera cv. Merlot clones selected in Serbia

OENO One ◽  
2015 ◽  
Vol 49 (4) ◽  
pp. 267
Author(s):  
Dragan S. Vujović ◽  
Dragoljub M. Žunić ◽  
Blaženka S. Popović ◽  
Milica M. Pantelić ◽  
Jelena B. Popović-Djordjević
Keyword(s):  
Clonal Selection ◽  
Research Work ◽  
Market Potential ◽  
Anthocyanin Content ◽  
Wine Quality ◽  
Total Anthocyanin ◽  
Significant Difference ◽  
The Republic ◽  
Selection Of

<p align="justify"><strong>Aims</strong>: The selection of cv. Merlot clones performed in the Grocka winegrowing region, Republic of Serbia, and the study of agrobiological and technological traits of three selected clones and Merlot standard.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The selection of clones was done using the method of individual clone selection in four phases over 15-20 years (Cindrić, 2003). O.I.V. methods were used in determining the most important agrobiological and economic-technological traits of grapes. The results of studied traits of grape and wine suggest that the quality of the clones surpassed the quality of the standard. Although the highest values for most of the studied traits were obtained for clone 025, there was no statistically significant difference between the clones. Indeed, the significant distinction between the clones was obtained for total polyphenol content (TPC) and total anthocyanin content (TAC) in wines: the wine of clone 025 had the highest TPC and TAC values. According to the tasting scores, wines of the clones may be classified as "quality wines with geographical indications".</p><p style="text-align: justify;"><strong>Conclusion</strong>: The selected clones were characterised by good quality grapes and wines. Improved viticultural parameters, versus the mother vine, indicate the need for further research work on the chemistry of both grapes and wines, aiming to better understand the characteristics of the selected clones and their market potential. Significance and impact of the study: The development of new clones (namely 022, 025 and 029) of better quality than the mother vine will, in the long term, lead to the introduction of the best clone(s) in viticultural practices and production. Until today, the clonal selection of Merlot has not been done in the Republic of Serbia and there are no recognised clones.</p>

scholarly journals FORMATION OF SCIENTIFIC RESEARCH ACTIVITY OF STUDENTS IN THE SYSTEM OF CREDIT EDUCATION

2020 ◽  
Vol 64 (3) ◽  
pp. 94-99
Author(s):  
N.S. Zhumasheva ◽  
◽  
N.A. Orahova ◽  
Keyword(s):  
Research Work ◽  
Independent Solution ◽  
Scientific Work ◽  
Research Activity ◽  
Training And Education ◽  
Technical Problems ◽  
Research Competencies ◽  
Scientific Technical ◽  
Important Means

The research work of students in the system of credit education is an important means of improving the quality of training and education of specialists who are able to creatively apply the achievements of scientific, technical and cultural progress in practice. Attracting students to scientific work allows them to develop their creativity, creativity and critical thinking, culture and ethics of scientific work.Research work of students in the system of credit education, which are highlighted by researchers,are aimed at the formation of research competencies of specialists: mastering by students the scientific method of cognition and, on its basis, in-depth and creative mastering of educational material; mastering the methodology and means of independent solution of scientific and technical problems; acquiring the skills of working in research teams and familiarization with the methods of organizing scientific work; direct participation in solving scientific and technical problems of society and the state

Use of IoT and Different Biofeedback to Measure TTH

2021 ◽  
pp. 486-525
Author(s):  
Rohit Rastogi ◽  
Devendra Kumar Chaturvedi ◽  
Mayank Gupta
Keyword(s):  
Random Sampling ◽  
International Headache Society ◽  
Research Work ◽  
Time Duration ◽  
Visual Biofeedback ◽  
Starting Point ◽  
Sf 36 ◽  
Selection Of

This chapter applied the random sampling in selection of the subjects suffering with headache, and care was taken that they ensure to fulfill the International Headache Society criteria. Subjects under consideration were assigned the two groups of GSR-integrated audio-visual feedback, GSR (audio-visual)- and EMG (audio-visual)-integrated feedback groups. In 10 sessions, the subjects experienced the GSR and EMG BF therapy for 15 minutes. Twenty subjects were subjected to EEG therapy. The variables for stress (pain) and SF-36 (quality of life) scores were recorded at starting point, 30 days, and 90 days after the starting of GSR and EMG-BF therapy. To reduce the anxiety and depression in day-to-day routine, the present research work is shown as evidence in favor of the mindful meditation. The physical, mental, and total scores increased over the time duration of SF-36 scores after 30- and 90-days recordings (p<0.05). Intergroup analysis has demonstrated the improvement. EMG-audio visual biofeedback group also showed highest improvement in SF-36 scores at first and third month follow up. EEG measures the Alpha waves for the subjects after meditation. GSR, EMG, and EEG-integrated auditory-visual biofeedback are efficient in solution of stress due to TTH with most advantage seen.

Achieving QoS in Highly Unreliable Grid Environments

2011 ◽  
pp. 156-180
Author(s):  
Antonios Litke
Keyword(s):  
Ad Hoc ◽  
Research Work ◽  
Service Differentiation ◽  
Research Activity ◽  
Simple Task ◽  
Grid Environments ◽  
Significant Research ◽  
Technological Means ◽  
Prioritization Scheme

Grids can form the basis for pervasive computing due to their ability of being open, scalable, and flexible to various changes (from topology changes to unpredicted failures of nodes). However, such environments are prone to failures due to their nature and need a certain level of reliability in order to provide viable and commercially exploitable solutions. This is causing nowadays a significant research activity which is focused on the topic of achieving certain levels of Quality of Service (QoS) in highly unreliable environments (such as mobile and ad hoc Grids). This study will focus on the state-of-the-art analysis of the QoS aspects in Grids and how this is achieved in terms of technological means. A small survey and related work will be also presented. A more detailed analysis on the features of unreliable environments such as mobile Grids will be described. An innovative and efficient mechanism will be described, which is especially designed for such environments, in order to enhance them with the QoS attributes of reliability (fault tolerance through replication of tasks) and service differentiation to the Grid users through a simple task prioritization scheme. The results that this recent research work is presenting are promising for the future advancement of Grid commercialization in such environments.

scholarly journals Exploitation of technological variability among wild non-Saccharomyces yeasts to select mixed starters for the production of low alcohol wines

2019 ◽  
Vol 15 ◽  
pp. 02031 ◽  
Author(s):  
A. Grazia ◽  
A. Pietrafesa ◽  
A. Capece ◽  
R. Pietrafesa ◽  
G. Siesto ◽  
...  
Keyword(s):  
Sugar Content ◽  
Negative Influence ◽  
Wine Quality ◽  
Alcohol Content ◽  
Grape Must ◽  
Promising Strategy ◽  
Yeast Strains ◽  
Low Alcohol ◽  
Saccharomyces Yeasts

Increase of the sugar content in grape must, and consequently, alcohol levels in wine are some of the principal problems affecting the winemaking industry. High alcohol content can compromise wine quality, creating sensory imbalances, as well as decreasing the perception of some flavors. The technological approaches proposed at this aim, although allowing achievement of the purpose, can determine negative influence on quality of wine. A promising strategy is based on the use of specific microorganisms, such as selected yeast strains, mainly non-Saccharomyces, able to convert grape must sugars towards secondary metabolites rather than ethanol. This study aims at screening of wild non-Saccharomyces strains in order to identify those suitable for the use in mixed starter for the production of wine with reduced alcohol content and, at the same time, with improved aromatic characteristics.

Mathematical Model of the Painting Robot

2016 ◽  
Vol 843 ◽  
pp. 72-80 ◽  
Author(s):  
Michal Bruzl ◽  
Vyacheslav Usmanov ◽  
Pavel Svoboda ◽  
Rostislav Šulc
Keyword(s):  
Mathematical Model ◽  
Optimal Trajectory ◽  
Research Work ◽  
Robotic Arm ◽  
3D Space ◽  
Painting Robot ◽  
The Mathematical Model ◽  
Work First ◽  
Selection Of

The main objective of the research work was to construct a techno-mathematical model of the robotic arm for conducting painting work, which would streamline the speed and quality of work performed with respect to material savings. For research we chose a robotic arm that is commonly used in industrial production, and adapted it for our conditions. The mathematical model is designed to find the optimal trajectory for moving the robotic arm, where the emphasis is placed on minimizing the path length of motion of the robot ́s endpoint, thus reducing overall energy consumption for the building work. First, the optimal mathematical modeling method was chosen, it was selected according to conditions and parameters of the robotic arm. Thanks to the applied method we picked the software that helped to create the algorithm. Subsequently, a computer simulation and calculation of the optimal motion using a combination of virtual circles, sine and cosine theorem, was done. Further, we checked all relevant angles and calculation of the robotic arm rotation in space for each admissible variant. The last step was the selection of the optimal trajectory of the robotic arm in 3D space.

scholarly journals Evaluation of biochemical indicators of apple fruits quality for the complex selection of the valuable source material for breeding

2020 ◽  
Vol 25 ◽  
pp. 02019
Author(s):  
Tatiana Prichko ◽  
Elena Ulyanovskaya ◽  
Natalia Droficheva
Keyword(s):  
Biochemical Composition ◽  
Selection Process ◽  
Sugar Content ◽  
Apple Fruit ◽  
Source Material ◽  
Genetic Origin ◽  
Scientific Center ◽  
Apple Fruits ◽  
Selection Of

The generalized results of a comprehensive long-term assessment (2015-2019) of biochemical and technical indicators of the quality of apple fruits of promising varieties (Malus domestica x Borkh.), including: the valuable initial parental forms and new varieties of regional selection, different in ploidy and genetic origin are presented, grown in the conditions of the South of Russia. This work used the generally accepted modern methods and programs for the variety study of fruit plants developed at the North Caucasian Federal Scientific Center for Horticulture, Viticulture, Wine-making (NCFSCHVW). The aim of the study was to select the source material of the apple fruit quality, which is valuable for the breeding, and the sources of the target traits based on the analysis of longterm data on the assessment of the biochemical composition of promising varieties of different ploidy and genetic origin. As a result of the comprehensive assessment of the main indicators of the quality of apple fruits in a varietal section, the sources of significant traits of apple tree for breeding use were identified: large-fruited, bright red and pure yellow color, improved chemical composition of fruits. According to the data of a longterm studies of the quality indicators of the apple fruits of introduced varieties and varieties of selection of the FSBSI NCFSCHVW, genotypes with an improved biochemical composition were identified for the use in the selection process: diploids: Champion, Orpheus (sugar content 10.5% and 10.8%, respectively); triploids: Soyuz, Vasilisa and the diploid variety Fortuna (vitamin C - more than 10.0 mg / 100 g); diploids: Margo, Vasilisa (P-active substances - more than 110.0 mg / 100 g).

scholarly journals Chevalior Sivaji Ganesan’s Tamil Film Songs Not Only Emulated the Quality of the Movie But also Contains Ethical Imports that can be Compared with Ethical Theories – A Retrospective Reflection

2020 ◽  
pp. 21-53
Author(s):  
P. Sarvaharana ◽  
Dr. S. Manikandan ◽  
Dr. P. Thiyagarajan
Keyword(s):  
Social Justice ◽  
Ethical Theory ◽  
Research Work ◽  
Ethical Theories ◽  
Theoretical Domain ◽  
Tamil Cinema ◽  
Selection Of

This is a research work that discusses the great contributions made by Chevalior Shivaji Ganesan to the Tamil Cinema. It was observed that Chevalior Sivaji film songs reflect the theoretical domain such as (i) equity and social justice and (ii) the practice of virtue in the society. In this research work attention has been made to conceptualize the ethical ideas and compare it with the ethical theories using a novel methodology wherein the ideas contained in the film song are compared with the ethical theory. Few songs with the uncompromising premise of patni (chastity of women) with the four important charateristics of women of Tamil culture i.e. acham, madam, nanam and payirpu that leads to the great concept of chastity practiced by exalting woman like Kannagi has also been dealt with. The ethical ideas that contain in the selection of songs were made out from the selected movies acted by Chevalier Shivaji giving preference to the songs that contain the above unique concept of ethics.

scholarly journals INFLUENCE OF GRAPE CULTURE AND AGROTECHNICAL METHODS ON ITS YIELD AND WINE QUALITY

2021 ◽  
pp. 11-15
Author(s):  
Aleksandr Dergunov ◽  
Ekaterina Kurdenkova Ekaterina Konstantinovna
Keyword(s):  
Sugar Content ◽  
Total Content ◽  
Titratable Acidity ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Wine Quality ◽  
Organoleptic Evaluation ◽  
Significance Level ◽  
Active Substances

The quality characteristics of technical grapes and wines largely depend on the management system of this culture. The aim of the study was to establish the influence of various norms of the load of a grape bush in a self-rooted and grafted culture on the yield, quality of grapes, as well as the aesthetic and biological value of wine products in the conditions of this terroir. The experiment was carried out in 2018-2019 in Temryuk district of Krasnodar region. The objects of research were grapes and wine material of Krasnostop AZOS variety in a grafted and rooted culture with a different load of shoots on the bush. The plantation was established in 2007 according to 3 × 2 m scheme, the formation of the bush was a spiral cordon AZOS-1. The soil of the experimental site is soddy-calcareous, thick, low-humus, light-clayey granulometric composition, formed on tertiary saline clays. The upper horizon (0-60 cm) has favorable agrochemical properties and a sufficient level of fertility. The normalization of the load by shoots of grape bushes cultivated in a self-rooted or grafted culture had a significant impact on the yield and technological qualities of Krasnostop AZOS grape variety during the years of the study. The highest yield result was provided by the variant of own-rooted bushes Krasnostop AZOS with standardized shoots 36 ... 40 pcs/bush - 3.45 kg/bush. The excess yield was significant at the 5% significance level in comparison with the control and other variants of the experiment and amounted to 0.45-0.9 kg/bush. The best ratio of sugar content and titratable acidity (standard glucose value - 4.36) for dry red wines had a variant of own-rooted culture with a load of shoots of 36-40 pcs/bush. In the investigated variants, the highest concentration of phenolic substances was in wine from self-rooted grapes with a load of 36 ... 40 shoots per bush - 4130 mg/dm3. This had a positive effect on the organoleptic evaluation of this sample. The maximum total content of substances from a number of biologically active substances was found in wine from grape raw materials obtained from the grafted culture (134.9 ... 147.9 mg/dm3). According to the results of two years of research, the optimal concentration of biologically active substances in the range of 120-135 mg/dm3, which, in combination with other wine components, is able to provide the best quality of dry red wine. In 2018-2019 from the organoleptic point of view, wine materials from grapes of own-rooted culture proved to be of the highest quality. This advantage over the grafted crop was traced in all variants of rationing the load by the shoots of grape bushes.

scholarly journals Повышение продуктивности клонов европейских сортов винограда на основе разработки элементов сортовой агротехнологии

2019 ◽  
pp. 229-234
Author(s):  
Natalia Urdenko ◽  
Magomedsaigit Beibulatov ◽  
Nadezhda Tikhomirova ◽  
Roman Buival
Keyword(s):  
Raw Materials ◽  
Sugar Content ◽  
Agricultural Practices ◽  
Shoot Formation ◽  
Training System ◽  
Sugar Accumulation ◽  
Cabernet Sauvignon ◽  
Grape Quality ◽  
Load Increase

В связи с появлением новых клонов европейских сортов винограда в Крыму возникает необходимость исследований поведения такого критерия как продуктивность кустов и качества получаемой продукции в конкретном природно-климатическом районе. Недостаточная изученность агробиологических и хозяйственно ценных свойств новых клонов технических сортов, отсутствие сведений по качественным характеристикам сырья в условиях Крыма без установления для них оптимальных параметров сортовой агротехники приводит к снижению эффективности возделывания. Поэтому проведение комплексной оценки новых для Крыма клонов европейских сортов винограда, а также разработка элементов сортовой агротехники с оценкой их перспективности является актуальным направлением исследований, поскольку дает возможность более эффективно и целенаправленно использовать биологические и потенциальные возможности новых клонов винограда. В связи с этим основной целью наших исследований, является установление основных агробиологических, количественных и качественных характеристик винограда изучаемых клонов, а также оценка их перспективности возделывания в зависимости от агротехнических факторов - оптимальная величина нагрузки кустов, длины обрезки плодовых лоз в условиях Южнобережной зоны Крыма. Полученные нами экспериментальные данные показали, что исследуемые клоны: Алеатико 802, Мускат белый VCR-3, Каберне-Совиньон R-5 в сравнении с сортами-эталонами проявляют весьма высокую способность плодоношения зимующих глазков и формирования побегов с высокими значениями коэффициентов плодоносности и плодоношения. Выявленные в результате исследований закономерности позволили установить рациональные способы ведения клонов европейских сортов винограда и нагрузку куста глазками, длину обрезки плодовых лоз и влияние изученных агроприемов на качество винограда. Высокоштамбовый способ ведения с формировкой кустов - «АЗОС-1» при ведении их на одноярусных шпалерах способствовал повышению продуктивности клонов сортов винограда Алеатико 802 и Мускат белый VCR-3, а форма куста односторонний горизонтальный кордон на среднем штамбе способствует большему накоплению сахаров в соке ягод клона сорта винограда Мускат белый VCR-3. Повышение нагрузки кустов от 24 до 36 глазков на куст у клона сорта Каберне-Совиньон приводило к увеличению урожайности с 12,2 до 14,8 т/га, при незначительном снижении сахаристости сока с 23,1 до 22,3 г/100 см.Introduction of new clones of European grapevine cultivars in Crimea calls for examination of the bush productivity criterion along with the quality of the final product obtained in a particular natural and climatic region of Crimea. Gaps in the knowledge of agrobiological and economically valuable properties of new clones of wine cultivars, the lack of data on quality characteristics of the raw materials in Crimea without established optimal parameters of varietal agricultural practices reduces cultivation efficiency. The above calls for a comprehensive assessment of the new for Crimea clones of European grapevine cultivars, and for development of varietal agricultural practices accompanied by their viability assessment, which would facilitate a more effective and targeted use of the biological and potential capabilities of new grapevine clones. Therefore, our study aims to establish basic agrobiological, quantitative and qualitative characteristics of the studied grapevine clones, and assess their cultivation prospects depending on such agro-technical factors as the optimal bush load and the fruit cane pruning length in the conditions of the southern coast of Crimea. The obtained experimental data revealed that the studied clones ‘Aleatico 802’, ‘Muscat Belyi VCR-3’ and ‘Cabernet Sauvignon R-5’ have a rather high fruiting ability of wintering eyes and shoot formation with high fruit-bearing capacity and fertility ratios as compared to standard varieties. The revealed patterns allowed establishing a rational training of clones of the European grapevine cultivars and the eye load per bush, the fruit cane pruning length and the influence of the studied agricultural practices on grape quality. The tall trunk training system - “Azos-1” on one-wired trellis increased productivity of clones of ‘Aleatiko 802’ and ‘Muscat Belyi VCR-3’ grapes, while the bush shape unilateral horizontal cordon on medium height trunk increased sugar accumulation in the juice of the fruit of clone of ‘Muscat Belyi VCR-3’. Bush load increase from 24 to 36 shoots per bush in the clone of ‘Cabernet Sauvignon’ grapes increased the yield from 12.2 t/ha to 14.8 t/ha, with a slight decrease in the sugar content of the juice from 23.1 g /100 cm to 22.3 g /100 cm.

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