Abstract
This study evaluates regulated deficit irrigation (IR) and post-harvest dehydration (DH) as complementary strategies to mitigate extreme thermal stress on the red grape variety Avgoustiatis during the hot 2024 vintage. Analysis of the berries reveals that while IR significantly expanded vine productivity to 2.75 kg/vine compared to 1.32 kg/vine recorded in control vines (CO), it successfully maintained berry weight (240 g). Conversely, DH induced controlled water loss, reducing berry weight to 93 g and concentrating must sugars to 27.3 °Brix, relative to the 23.2 °Brix observed in IR. Crucially, both IR and DH prevented the thermal degradation of total acidity (6.73 g/L and 7.25 g/L respectively) which caused by heat stress in CO samples (6.21 g/L). In the finished wines, both practices increased colour intensity by lowering anthocyanin extractability. However, chemical profiling clearly differentiated the treatments with DH maximized skin tannins (164.7 mg/L), yielding highly structured, astringent wines characterized by plum aromas driven by elevated nerol content (492.91 μg/L). Conversely, IR wines presented a more complex volatile profile, boosting fruity and floral notes. In conclusion, as irrigation becomes increasingly restricted by water scarcity under climate change, post-harvest dehydration offers an effective alternative for producing premium, structurally dense red wines.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
Regulated deficit irrigation significantly increased vine productivity to 2.75 kg/vine compared with control vines.
- Taxon
- Vitis Vinifera
Vitis viniferat0 - Material
- Avgoustiatise0
- Treatment
- IRe1
- Outcome
- vine productivitye1
- Direction
- expandede1
- Value
- 2.75 kg/vinee1
- Comparator
- control vinese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e1“while IR significantly expanded vine productivity to 2.75 kg/vine compared to 1.32 kg/vine recorded in control vines (CO)”
Claim · model-written summary
Regulated deficit irrigation maintained berry weight at 240 g.
- Taxon
- Vitis ViniferaVitis viniferat0
- Material
- Avgoustiatise0
- Treatment
- IRe1
- Outcome
- berry weighte2
- Direction
- maintainede2
- Value
- 240 ge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e1“while IR significantly expanded vine productivity to 2.75 kg/vine compared to 1.32 kg/vine recorded in control vines (CO)”
e2“it successfully maintained berry weight (240 g)”
Claim · model-written summary
Post-harvest dehydration reduced berry weight to 93 g.
- Taxon
- Vitis ViniferaVitis viniferat0
- Material
- Avgoustiatise0
- Treatment
- DHe3
- Outcome
- berry weighte3
- Direction
- reducinge3
- Value
- 93 ge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e3“DH induced controlled water loss, reducing berry weight to 93 g and concentrating must sugars to 27.3 °Brix, relative to the 23.2 °Brix observed in IR”
Claim · model-written summary
Post-harvest dehydration concentrated must sugars to 27.3 °Brix, compared with 23.2 °Brix under regulated deficit irrigation.
- Taxon
- Vitis ViniferaVitis viniferat0
- Material
- Avgoustiatise0
- Treatment
- DHe3
- Outcome
- must sugarse3
- Direction
- concentratinge3
- Value
- 27.3 °Brixe3
- Comparator
- 23.2 °Brix observed in IRe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e3“DH induced controlled water loss, reducing berry weight to 93 g and concentrating must sugars to 27.3 °Brix, relative to the 23.2 °Brix observed in IR”
Claim · model-written summary
Regulated deficit irrigation prevented thermal degradation of total acidity (6.73 g/L) relative to control samples (6.21 g/L).
- Taxon
- Vitis ViniferaVitis viniferat0
- Material
- Avgoustiatise0
- Treatment
- IRe4
- Outcome
- total aciditye4
- Direction
- preventede4
- Value
- 6.73 g/Le4
- Qualifier
- thermal degradatione4
- Comparator
- COe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e4“both IR and DH prevented the thermal degradation of total acidity (6.73 g/L and 7.25 g/L respectively) which caused by heat stress in CO samples (6.21 g/L)”
Claim · model-written summary
Post-harvest dehydration prevented thermal degradation of total acidity (7.25 g/L) relative to control samples (6.21 g/L).
- Taxon
- Vitis ViniferaVitis viniferat0
- Material
- Avgoustiatise0
- Treatment
- DHe4
- Outcome
- total aciditye4
- Direction
- preventede4
- Value
- 7.25 g/Le4
- Qualifier
- thermal degradatione4
- Comparator
- COe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e4“both IR and DH prevented the thermal degradation of total acidity (6.73 g/L and 7.25 g/L respectively) which caused by heat stress in CO samples (6.21 g/L)”
Claim · model-written summary
Both irrigation and dehydration increased wine colour intensity by lowering anthocyanin extractability.
- Taxon
- Vitis ViniferaVitis viniferat0
- Material
- Avgoustiatise0
- Treatment
- both practicese5
- Outcome
- colour intensitye5
- Direction
- increasede5
- Qualifier
- lowering anthocyanin extractabilitye5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e5“In the finished wines, both practices increased colour intensity by lowering anthocyanin extractability”
Claim · model-written summary
Post-harvest dehydration maximized skin tannins at 164.7 mg/L.
- Taxon
- Vitis ViniferaVitis viniferat0
- Material
- Avgoustiatise0
- Treatment
- DHe6
- Outcome
- skin tanninse6
- Direction
- maximizede6
- Value
- 164.7 mg/Le6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e0“the red grape variety Avgoustiatis”
e6“DH maximized skin tannins (164.7 mg/L)”
Claim · model-written summary
Wines from dehydrated grapes had plum aromas driven by elevated nerol content (492.91 μg/L).
- Taxon
- Vitis ViniferaVitis viniferat0
- Compound
- nerole7
- Outcome
- nerol contente7
- Direction
- elevatede7
- Value
- 492.91 μg/Le7
- Qualifier
- plum aromase7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e7“plum aromas driven by elevated nerol content (492.91 μg/L)”
Claim · model-written summary
Regulated deficit irrigation wines had a more complex volatile profile, boosting fruity and floral notes.
- Taxon
- Vitis ViniferaVitis viniferat0
- Treatment
- IR winese2
- Outcome
- fruity and floral notese2
- Direction
- boostinge2
- Qualifier
- more complex volatile profilee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e2“IR wines presented a more complex volatile profile, boosting fruity and floral notes”
Claim · model-written summary
Post-harvest dehydration is an effective alternative for producing premium, structurally dense red wines under water scarcity.
- Taxon
- Vitis ViniferaVitis viniferat0
- Treatment
- post-harvest dehydratione3
- Outcome
- effective alternative for producing premium, structurally dense red winese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vitis Vinifera”
e3“post-harvest dehydration offers an effective alternative for producing premium, structurally dense red wines”
The same questions in other papers
irrigation · quality: sugar starch · Vitis vinifera (wine grape)Results differ
6 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- negative
- no effect
8 papers more in this group
See all 12 papers →drought · quality: sugar starch · Vitis vinifera (wine grape)Results differ
2 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- negative
- no effect
9 papers more in this group
See all 13 papers →drought · quality: phytochemicals · Vitis vinifera (wine grape)Positive and negative results
13 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
13 papers more in this group
See all 17 papers →irrigation · yield · Vitis vinifera (wine grape)Positive and negative results
23 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
37 papers more in this group
See all 41 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.