Viticulture Data Journal : Data Paper (Biosciences)
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Corresponding author: Maritina Stavrakaki (maritina@aua.gr)
Academic editor: Lyubomir Penev
Received: 02 Jul 2019 | Accepted: 26 Sep 2019 | Published: 30 Dec 2019
© 2019 Katerina Biniari, Ioannis Daskalakis, Despoina Bouza, Maritina Stavrakaki
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Biniari K, Daskalakis I, Bouza D, Stavrakaki M (2019) Comparative study of qualitative and quantitative characters of grape cultivar 'Mavrodafni' (Vitis vinifera L.) and 'Renio' grown in different regions of the Protected Designation of Origin Mavrodafni Patras. Viticulture Data Journal 1: e37852. https://doi.org/10.3897/vdj.1.e37852
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'Mavrodafni' (Vitis vinifera L.) is considered one of the oldest grapevine cultivars indigenous to the Greek vineyards, with western Peloponnese being its primary centre of cultivation. 'Renio' is considered to be either a biotype of 'Mavrodafni' or an altogether different cultivar. Both 'Mavrodafni' and 'Renio' can be found in the vineyards of the areas of cultivation, since 'Renio' is considered to be more productive compared to 'Mavrodafni' and, for this reason, it has gradually replaced 'Mavrodafni' from cultivation over the course of time.
'Mavrodafni' and 'Renio' contain appreciable amounts of quality characters of grape and must in terms of total polyphenol and total anthocyanins content in berry skins, depending on the different regions where they are cultivated and they would be worthy of further study and use for the production of different types of wines.
anthocyanins, grape skins, must, polyphenols, tannins, Vitis vinifera L.
The Pelopponnese peninsula is one of the oldest grapevine producing regions of Greece, hosting a great variety of cultivars across its vineyeards, some of which are of primary importance for the Greek vine producing industry as whole.
During the past years, the problems related to the knowledge of varietal potential, as well as to sanitation of grapevine propagating material, have increased to such an extent that they threaten the viticultural production, as well as the establishment of productive vineyards.
In addition, in the wider viticultural Protected Designation of Origin (PDO) region Mavrodafni Patras, factors such as the application of cultivation techniques related to vineyard management resulting in increased yield (per ha), raise questions regarding the quality of wine products, as well as regarding the overall future of viticulture in the region.
In view of climate change and the depletion of natural resources due to the intensification of vine growing, it is imperative that inputs be reduced.
'Mavrodafni' is a significant red grapevine cultivar with the Peloponnese and the Ionian islands being its cultivation centres. It has been described as 'Mavrodaphne' (
'Renio' is considered either a biotype of Mavrodafni or an altogether different cultivar. A study that employed molecular markers showed that they are different cultivars (
The aim of the present study was to assay the mechanical properties, the polyphenolic content and the antioxidant capacity of skin extracts and must of berries of 'Mavrodafni' and 'Renio', cultivated in the same vineyard, as well as in the different regions of cultivation of the PDO Mavrodafni Patras (See Suppl. material
'Mavrodafni' recorded the highest content in skin total phenolics, skin total anthocyanins and skin total tannins in all studied regions, with a significant difference compared to 'Renio' (Tables
Cultivars studied and vineyards’ characteristics.
a/a |
Cultivar |
Training system |
Age |
Altitude |
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1 |
Mavrodafni |
Arla |
Cordon |
20 years |
600 m |
|
2 |
Renio Arla |
Arla |
Cordon |
20 years |
600 m |
|
3 |
Mavrodafni |
Fostaina |
Cordon |
6 years |
400 m |
|
4 |
Mavrodafni |
Karantzas |
Cordon |
30 years |
200 m |
|
5 |
Renio |
Karantzas |
n/a |
30 years |
200 m |
|
6 |
Mavrodafni |
Karyes |
Cordon |
5 years |
n/a |
|
7 |
Renio |
Karyes |
Cordon |
5 years |
n/a |
|
8 |
Mavrodafni |
Katw Mylos |
n/a |
n/a |
n/a |
|
9 |
Renio |
Katw Mylos |
n/a |
n/a |
n/a |
|
10 |
Mavrodafni |
Linos |
n/a |
30 years |
0 m |
Characters of the must.
pH | Sugars | Total Titr. Acidity | |
Mavrodafni_Arla | 3.17 ± 0.00g | 17.16 ± 0.03f | 6.75 ± 0.00ab |
Renio_Arla | 3.15 ±0.00g | 12.06 ± 0.06h | 5.50 ± 0.25de |
Mavrodafni_Fostaina | 3.71 ± 0.00b | 18.90 ± 0.00c | 5.25 ± 0.00e |
Mavrodafni_Karantzas | 3.39 ± 0.00f | 17.43 ± 0.03d | 6.25 ± 0.12bc |
Renio_Karantzas | 3.56 ± 0.00d | 18.50 ± 0.00e | 6.00 ± 0.00cd |
Mavrodafni_Karyes | 3.44 ± 0.00e | 12.26 ± 0.03g | 6.62 ± 0.12ab |
Renio_Karyes | 3.39 ± 0.00h | 12.36 ± 0.03g | 7.00 ± 0.25a |
Mavrodafni_KatwMylos | 3.56 ± 0.00d | 21.76 ± 0.00a | 5.25 ± 0.00e |
Renio_KatwMylos | 3.74 ± 0.00a | 21.76 ± 0.03b | 4.50 ± 0.00f |
Mavrodafni_Linos | 3.65 ± 0.00c | 21.80 ± 0.00b | 5.25 ± 0.00e |
Mechanical properties of the bunch.
Bunch length | Bunch width | Bunch weight | |
Mavrodafni_Arla | 19.66 ± 1.85ab | 9.66 ± 0.66abc | 248.33 ± 54.63abc |
Renio_Arla | 18.66 ± 0.88abc | 8.26 ± 0.37bc | 251.66 ± 32.05abc |
Mavrodafni_Fostaina | 17.00 ± 1.73abcd | 9.00 ± 0.57bc | 300.00 ± 10.69ab |
Mavrodafni_Karantzas | 13.90 ± 0.10cd | 9.50 ± 0.76abc | 165.33 ± 6.33cd |
Renio_Karantzas | 15.33 ± 1.76abcd | 6.00 ± 0.57c | 208.00 ± 13.52bcd |
Mavrodafni_Karyes | 18.00 ± 0.57abcd | 13.33 ± 1.66a | 259.66 ± 38.80abc |
Renio_Karyes | 20.33 ± 0.66a | 10.83 ± 0.16ab | 291.33 ± 25.72abc |
Mavrodafni_KatwMylos | 13.66 ± 0.66cd | 9.16 ± 0.92abc | 223.00 ± 8.73abcd |
Renio_KatwMylos | 13.00 ± 0.00d | 8.33 ± 0.60bc | 168.00 ± 24.09bcd |
Mavrodafni_Linos | 14.83 ± 1.09bcd | 5.50 ± 0.28c | 90.66 ± 3.52d |
Skin total phenolics (mg catechin/g f.w.) | Skin total anthocyanins (mg malvidin/g f.w.) | Skin total flavanols (mg catechin/g f.w.) | Skin total tannins (mg catechin/g f.w.) | Skin total flavonoids (mg catechin/g f.w) | Skin total flavones (mg rutin/g f.w.) | Antioxidant capacity (mg trolox/g f.w.) | |
Mavrodafni_Arla | 52.20 ± 3.44d | 12.60 ± 0.48b | 3.79 ± 0.06b | 61.63 ± 2.50b | 8.96 ± 0.70d | 1.89 ± 0.08abc | 63.25 ± 0.98cd |
Renio_Arla | 54.40 ± 0.57d | 5.76 ± 0.20f | 4.06 ± 0.04a | 63.45 ± 1.18ab | 9.10 ± 0.61cd | 1.35 ± 0.10cd | 65.07 ± 0.49c |
Mavrodafni_Fostaina | 61.52 ± 3.16cd | 11.20 ± 0.31bcd | 3.36 ± 0.03cd | 68.07 ± 1.34ab | 5.95 ± 0.35e | 1.60 ± 0.10bcd | 64.89 ± 0.73c |
Mavrodafni_Karantzas | 60.40 ± 1.52cd | 13.00 ± 0.24b | 3.14 ± 0.02e | 68.87 ± 0.85a | 5.70 ± 0.23e | 1.72 ± 0.18abcd | 57.80 ± 0.82d |
Renio_Karantzas | 91.36 ± 1.45a | 8.20 ± 0.42ef | 3.79 ± 0.01b | 31.89 ± 1.45cd | 11.50 ± 0.22ab | 2.13 ± 0.06ab | 64.49 ± 0.34c |
Mavrodafni_Karyes | 64.40 ± 1.31c | 11.88 ± 0.60bc | 3.19 ± 0.05de | 70.54 ± 1.24a | 5.63 ± 0.33e | 1.31 ± 0.04cd | 76.88 ± 0.52b |
Renio_Karyes | 73.92 ± 0.24b | 9.60 ± 0.34cde | 3.88 ± 0.03b | 21.56 ± 0.99e | 10.36 ± 0.26abcd | 1.15 ± 0.05d | 76.63 ± 1.95b |
Mavrodafni_KatwMylos | 81.02 ± 0.91b | 16.92 ± 0.30a | 3.34 ± 0.02c | 19.38 ± 0.85e | 9.96 ± 0.03bcd | 1.90 ± 0.11abc | 80.49 ± 0.45b |
Renio_KatwMylos | 97.44 ± 1.32a | 8.88 ± 0.27de | 3.34 ± 0.01cd | 38.90 ± 0.89c | 12.08 ± 0.14a | 2.31 ± 0.20a | 65.44 ± 0.63c |
Mavrodafni_Linos | 80.16 ± 0.96b | 18.16 ± 0.52a | 3.28 ± 0.03cde | 22.58 ± 2.60e | 11.65 ± 0.44ab | 2.11 ± 0.04ab | 89.01 ± 0.43a |
The vineyards, from where the samples were collected, are located in the greater area of Achaia (Table
Grapes were randomly selected from different vines of each cultivar and three (3) sampling processes took place. The grapes were collected from the main shoots of different positions. Each sampling constituted one replication. A total of three (3) replications per treatment (cultivar) took place. The sampling process and samples preparation for spectrophotometric and HPLC analyses, as well as the data analysis described in
Measurements:
The vineyards, from where the samples were collected, are located in the greater area of Achaia.
Column label | Column description |
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Samples | Samples collected from the cultivars studied and related regions |
pH | Measurement: pH |
Sugars (Brix) | Total soluble solids measured in Brix |
Total titratable acidity | Total titratable acidity measured in g tartaric acid/l must |
Bunch length (cm) | Bunch length measured in cm |
Bunch width (cm) | Bunch width measured in cm |
Bunch weight (g) | Bunch weight measured in g |
Skin total phenolics (mg catechin/g f.w.) | Total phenolics of berry skin measured in mg catechin/g fresh weight |
Skin total anthocyanins (mg malvidin/g f.w.) | Total anthocyanins of berry skin measured in mg malvidin/g fresh weight |
Skin total flavanols (mg catechin/g f.w.) | Total flavanols of berry skin measured in mg catechin/g fresh weight |
Skin total tannins (mg catechin/g f.w.) | Total tannins of berry skin measured in mg catechin/g fresh weight |
Skin total flavonoids (mg catechin/g f.w) | Total flavonoids of berry skin measured in mg catechin/g fresh weight |
Skin total flavones (mg rutin/g f.w.) | Total flavones of berry skin measured in mg rutin/g fresh weight |
Antioxidant capacity (mg trolox/mg f.w.) | Antioxidant capacity of berry skin measured in mg trolox/g fresh weight |
This is the raw dataset of the measurements performed on the samples collected from the two varieties from the different locations. There are three repetitions per measurement and no statistical analysis has been performed.