GiESCO 2019 banner
IVES 9 IVES Conference Series 9 GiESCO 9 «Nektar» -the new red variety wine grape aromatic high quality

«Nektar» -the new red variety wine grape aromatic high quality

Abstract

Context and purpose of the study – The multi-annual study of the International Genetic Bank of the Grape Vine has shown that red varieties are enough, but the red varieties that produce high-quality red wine are minimal. This paper presents is the create, the study and amplographic description the new red variety “Nektar”. The new red variety “Nektar” was created at the Athens Vineyard Institute in 2012.  

Material and methods – The variety created by crossing by the method of hybridization of the newly Greek variety “Makedonas” (“Ksinomauro” x “Cabernet Sauvignon”) with the newly Greek variety “Tihi” (“Augoulato” with the pollen mix of varieties Cabernet-Sauvignon and Grenache noir).

Results – The “Nektar” is is a new red grape variety wine-making quality aromatic. The duration of the variety from budburst to maturity is 136-145 days. The variety is very strong with large shoots growth (2.1 – 3.0 m). The growth of shoots is higherover 95 %. The average mass of cluster is 360 g and the yield are high, 15-20 t / ha. The “Nektar” grape variety is medium, spheric,middle density, the diameter 15 mm, with anaverage weight of 1,9 g and a blue-black color.The flower is hermaphrodite. The pollen is fertile.The quantity of seeds in berry is3-4. The skin is thick with high strength. The flesh isnone or very weak, with a special flavor of the variety, green paper. The content of sugar in must is greater than 24 %. The “Nektar” variety, based on its ampelographic and natural characteristics, is classified in the group of varieties convarietasponticaNeqr. It is distinguishedfrom by its high resistance to drought and fungal diseases compared to other varieties of Vitis vinifera L. The variety is intended for the production of high-quality red wines, and very aromatic juices. Can be used in the genetic improvement of vitis vinifera varieties as a qualitydonor

DOI:

Publication date: June 18, 2020

Issue: GiESCO 2019

Type: Poster

Authors

P. Zamanidis1, Ch. Paschalidis2, L. Papakonstantinou3, D. Taskos1 and E. Vavoulidou4

(1) Department of Viticulture of Athens. Institute of Olive Tree, Subtropical Cropsand Viticulture. Hellenic Agricultural Organization-DEMETER 1 S. Venizelou Str., 14123, Lykovrisi, Attiki, Greece.
(2) Technological Educational Institute of Peloponnese, School of Agricultural Technology, 24100 Antimalamos, Kalamata
(3) Agricultural University of Athens, 75 IeraOdos str., 11855, Botanikos, Attica
(4) “ELGO DIMITRA” Athens Soil Science Institute. 1 Venizelou St., 14123 Lykovrysi, Attica

Contact the author

Keywords

Hybridization, variety, shoots, leaves, inflorescence, cluster, berry 

Tags

GiESCO | GiESCO 2019 | IVES Conference Series

Citation

Related articles…

First company results and for the territory on the application of the “bio-Métaéthique 4.1c” in italy. Cultural, socio-economic, technical and productive aspects

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.20.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...

The current state and prospects for the development of viticulture and winemaking in Greece

Viticulture in Greece is the oldest, but in recent years there has been a reduction of areas intended for the production of wine products. The article contains data on viticulture in Greece. Over time, the land of Greek vineyards is fluctuating. There is a trend towards a decrease in areas in connection with the quota of products from the EU.

Water deficit impacts grape development without dramatically changing thiol precursor levels

The use of new fungus disease-tolerant grapevine varieties is a long-term and promising solution to reduce chemical input in viticulture. However, little is known about the effects of water deficit (WD) on the thiol aromatic potential of new varieties coming up from breeding programs. Varietal thiols such as 3-sulfanylhexan-ol (3SH), 4-methyl-4-sulfanylpentan-2-one (4MSP) and their derivatives are powerful aromatic compounds present in wines coming from odorless precursors in grapes, and could contribute to the wine typicity of such varieties.

Changes in white wine composition after treatment with cationic exchange resin: impact on wine oxidation after 8 years of bottle storage

Samples from 3 wine types were treated with a cationic exchange resin (7 lots) and stored for 8 years (47 samples). Forty-seven parameters were determined, including (1) important substrates with impact in white wine oxidation and (2) markers of oxidation. From group 1, sugars, elements, phenolic compounds, α-dicarbonyls and SO2 and from group 2, browning (A420), acetaldehyde, alkanals, furanic compounds were quantified.

UNEXPECTED PRODUCTION OF DMS POTENTIAL DURING ALCOOLIC FERMENTATION FROM MODEL CHAMPAGNE-LIKE MUSTS

The overall quality of aged wines is in part due to the development of complex aromas over a long period (1.) The apparition of this aromatic complexity depends on multiple chemical reactions that include the liberation of odorous compounds from non-odorous precursors. One example of this phenomenon is found in dimethyl sulphide (DMS) which, with its characteristic odor truffle, is a known contributor to the bouquet of premium aged wine bouquet (1). DMS supposedly accumulates during the ten first years of ageing thanks to the hydrolysis of its precursor dimethylsulfoniopropionate (DMSp.) DMSp is a possible secondary by-product from the degradation of S-methylmethionine (SMM), an amino acid iden- tified in grapes (2), which can be metabolized by yeast during alcoholic fermentation.