scholarly journals The effect of cane girdling on berry skin phenolic concentration of three table grape varieties

2021 ◽  
Vol 22 (2) ◽  
pp. 341-345
Author(s):  
György Lukácsy ◽  
Szabolcs Villangó ◽  
Gyula Váradi ◽  
Edit Hajdu ◽  
Gábor Zanathy† ◽  
...  
Keyword(s):  
Table Grape ◽  
Berry Skin ◽  
Grape Varieties ◽  
Phenolic Concentration

scholarly journals Estimating technical efficiency of Chinese table grape wholesalers

2015 ◽  
Vol 117 (6) ◽  
pp. 1670-1688 ◽  
Author(s):  
Weihua Jiao ◽  
Zetian Fu ◽  
Weisong Mu ◽  
Xiaoshuan Zhang ◽  
Jianjun Lu ◽  
...  
Keyword(s):  
Technical Efficiency ◽  
Agricultural Research ◽  
Table Grape ◽  
Scale Efficiency ◽  
Tobit Regression ◽  
Policy Makers ◽  
Content Type ◽  
Explanatory Variables ◽  
Parametric Data ◽  
Grape Varieties

Purpose – The purpose of this paper is to estimate the technical efficiency of Chinese table grape wholesalers and subsequently to examine the degree to which the calculated efficiency correlates with a set of explanatory variables. Design/methodology/approach – A two-stage procedure is applied in this paper. First, a non-parametric data envelopment analysis (DEA) technique is applied to investigate the degree of technical efficiency for Chinese table grape wholesalers. Second, Tobit regression is used to analyze the factors influencing technical efficiency. Findings – Research results reveal that the mean technical efficiency of the sample is 0.544 and 0.860 under constant returns scale (CRS) and VRS assumptions, respectively, and the scale efficiency (SE) is 0.620. The variables of experiences, number of grape varieties on sale, daily selling volumes and fixed sale ratio have a significant effect on technical efficiency, while the other exogenous variables do not affect the efficiency in any significant way. Research limitations/implications – The findings of this research are specific to table grape wholesalers in China, however, the method used in this study is transferrable and applicable to the study of similar problems in others countries. Originality/value – This research has yielded some interesting and original insights into the efficiency level of Chinese grape wholesalers and the factors that influence the level of efficiency. The findings have practical implications for Chinese agriculture policy makers, and are able to stimulate further research of a similar type in the international agricultural research community.

Direct multiplex PCR for grapevine genotyping and varietal identification

2012 ◽  
Vol 11 (2) ◽  
pp. 182-185 ◽  
Author(s):  
Daniele Migliaro ◽  
Giacomo Morreale ◽  
Massimo Gardiman ◽  
Sara Landolfo ◽  
Manna Crespan
Keyword(s):  
Multiplex Pcr ◽  
Dna Analysis ◽  
Cultivar Identification ◽  
Table Grape ◽  
Plant Tissues ◽  
Grapevine Cultivar ◽  
Research Institutes ◽  
Varietal Identification ◽  
Grape Varieties ◽  
Simple Sequence

Grapevine cultivar identification is based mainly on two complementary methodologies: microsatellite (simple sequence repeat (SSR)) DNA analysis and traditional ampelography. Here, we report a direct multiplex PCR approach that allows the simultaneous amplification of 11 SSR loci from crude samples, i.e. bypassing DNA extraction, by using an engineered DNA polymerase improved to tolerate plant PCR inhibitors. Many different plant tissues were successfully amplified: leaf, root, wood, berry flesh and skin, stalk and must, from wine and table grape varieties, and rootstocks. The direct multiplex PCR that we propose is quicker and cheaper than the methodologies used until now, and provides accurate results. Thus, SSR DNA analysis becomes economically more accessible to a larger number of potential users in addition to research institutes.

scholarly journals APPLICATION OF MODIFIED ATMOSPHERE PACKAGING AND HUMIDITY CONTROL TO EXTEND THE STORAGE LIFE OF GRAPE VARIETIES GROWN IN EASTERN UNITED STATES - A COMPARATIVE STUDY

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1139d-1139
Author(s):  
Albert F. Elboudwarej ◽  
Robert C. Herner
Keyword(s):  
United States ◽  
Relative Humidity ◽  
Modified Atmosphere Packaging ◽  
Table Grape ◽  
Modified Atmosphere ◽  
Eastern United States ◽  
General Acceptance ◽  
Table Grapes ◽  
Grape Varieties ◽  
Storage Characteristics

In 1987, 1988, and 1989, the behavior of four different table grape varieties including Alden, Concord, Himrod, and Vanessa were studied during storage at 0°C.The first objective of our study was to determine the behavior of table grapes in modified atmosphere packages in terms of general acceptance. After three years of experimenting with these three films we were able to obtain a modified atmosphere of about 3% O2 and 10-15% CO2 at 0°C using a 3 mil thickness LDPE.Our second objective was to use moisture absorbents as a means of reducing the relative humidity inside the void volume of a package by the inclusion of different desiccants in the package to establish a desirable relative humidity.Examining different storage characteristics, our data showed that `Himrod', `Vanessa', and `Concord' grape clusters stored in the presence of KNO3 and KCl had better quality compared to grape clusters stored in the presence of other sorption compounds or controls with no sorbants.

scholarly journals Grape cultures in Greece

2020 ◽  
pp. 44-46
Author(s):  
Христос Димитриос Пасхалидис ◽  
Димитрис Панаетис Петропулос ◽  
Ставрос Сотириос Сотиропулос ◽  
Пантелей Константинович Заманидис ◽  
Лукас Димитриос Папаконстантину ◽  
...  
Keyword(s):  
Table Grape ◽  
Geographical Indication ◽  
Average Yield ◽  
History Of Development ◽  
Crete Island ◽  
History Of ◽  
Favorable Conditions ◽  
Grape Varieties ◽  
Modern Technologies ◽  
Western Greece

Приводятся данные по истории развития виноградарства в Греческой Республике. В 2015 году общая площадь под виноградниками составляла 103,082 га, насчитывалось 188,873 крестьянских хозяйств. Сегодня отмечается тенденция к снижению площадей в связи с квотированием продукции со стороны ЕС. Большинство плантаций находятся на Пелопоннесе - 25,554 га, на острове Крит - 22,554 га и в западной Греции - 16,446 га. Виноградники для производства вин категории DOP (Protected Denomination of Origin) находятся на Пелопоннесе (3,603 га) и для производства вин категории IGP (Protected Geographical Indication) - в центральной Греции (6,202 га) Культивируется в основном два сорта сухого кишмиша Корианфиаки (черный) и Султанина (светлый). Средний урожай столовых сортов винограда с 1 га составляет 74,3 ц. Биологическое сельское хозяйство ведется на площади свыше 3,685 га, что составляет 4% от общей площади. В Греции большинство крестьян, вне зависимости от того, какая возделывается культура, имеют в своей собственности в среднем по 3,5 га. Греция намного отстает по виноградным площадям от таких стран как Испания и Франция и находится на одном из последних мест. Выращивание винограда сталкивается со значительной нехваткой передовых технологий, сложностями в решении организационных и маркетинговых вопросов. Затрудняет модернизацию виноградарских ферм их небольшой размер. Увеличение сельскохозяйственных угодий могло бы способствовать улучшению использования технологического оборудования и инфраструктуры, создавая благоприятные условия для производства продукции и ее экспорта. The article presents data on the history of development of viticulture in the Hellenic Republic. The total area of vineyards in 2015 was 103,082 ha and consisted of 188,873 farms. Today we notice the acreage reducing trend due to the assignment of quotas for products from the side of EU. Most of plantations are located on the Peloponnesus - 25,554 ha, on the Crete island - 22,554 ha and in western Greece - 16,446 ha. Vineyards for production of wines of DOP category ( Protected Denomination of Origin ) are located in the Peloponnesus (3,603 ha) and for the production of wines of IGP category ( Protected Geographical Indication) in central Greece (6,202 ha). Two main varieties of sultana raisin ‘Korianfiaki’ (black-berry) and ‘Sultanina’ (white-berry) are cultivated. The average yield of table grape varieties is 74,3 c/ha. Biological agriculture is conducted on the territory over 3,685 ha, amounting 4% of the total area. Most of farmers in Greece, regardless the culture of cultivation, on average possess the land square of 3,5 ha each. Greece is far behind the vineyards of such countries as Spain and France and takes one of the last places. Grape growing faces a significant lack of modern technologies, difficulties in solving organizational and marketing questions. The problem of modernization is caused by small size of vineyards. The increase in agricultural acreage could help to improve the use of technological equipment and infrastructure, creating favorable conditions for production and export.

Phenolic Composition of the Brazilian Seedless Table Grape Varieties BRS Clara and BRS Morena

2011 ◽  
Vol 59 (15) ◽  
pp. 8314-8323 ◽  
Author(s):  
Ellen Silva Lago-Vanzela ◽  
Roberto Da-Silva ◽  
Eleni Gomes ◽  
Esteban García-Romero ◽  
Isidro Hermosín-Gutiérrez
Keyword(s):  
Table Grape ◽  
Phenolic Composition ◽  
Grape Varieties
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