Abstract
Climate change scenarios are predicting an increase in temperature as well as more scarce and torrential rainfall episodes. Due to this, an imbalance between grape technological and phenolic maturity is being observed detrimentally affecting grapes composition. In semi-arid areas, irrigation management is a main field practice to influence grape ripening. The goal of the present study was to investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes: (i) Rainfed, (ii) deficit irrigation (DI) replacing only 35% of the estimated crop evapotranspiration (ETc) and (iii) full irrigation (FI) replacing 100% ETc. In the mid-summer, rainfed grapevines showed different degrees of water stress determined by midday stem water potentials (Ψstem) ranging from −1.1 to −1.4 MPa depening on the season. Rainfed plants had in all seasons less vigor and production and, at harvest, higher concentrations of total soluble solids (TSS) and grape phenolics compounds, as well as lower pH, with respect to the other water regimes studied. DI grapevines, generally, had intermediate values between Rainfed and FI, which presented extreme values of the studied parameters respect to Rainfed. The effects observed on grape color parameters and phenolic compounds with the Rainfed regime were mainly due to a dehydration of the berry, which lowered the yield and the weight of the berry compared to the irrigated treatments. The lower TSS accumulation in the DI berries with respect to the Rainfed, will favor obtaining wines with lower alcohol content, currently more demanded by the consumers. Besides, despite the differences obtained between water regime treatments in the TSS accumulation, the extractability of the anthocyanins was similar, which is interesting since anthocyanin extraction from grapes is prerequisite to the formation of stable red wine pigments. Although the most convenient irrigation strategy might depend to the wine style to be obtained, DI is a strategy that can help to close the gap in the imbalance between the technological and phenolic maturity, positively affecting vine yield and performance with respect to the rainfed strategy.
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Claims 11
Claim · model-written summary
Rainfed grapevines were water stressed in mid-summer, with midday stem water potentials of -1.1 to -1.4 MPa.
- Taxon
- Vitis vinifera
Vitis viniferae0 - Material
- cv. Bobale0
- Treatment
- rainfede1
- Outcome
- midday stem water potentialse1
- Value
- −1.1 to −1.4 MPae1
- Setting
- mid-summere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e1“In the mid-summer, rainfed grapevines showed different degrees of water stress determined by midday stem water potentials (Ψstem) ranging from −1.1 to −1.4 MPa depening on the season”
Claim · model-written summary
Rainfed vines had less vigor and production than vines under the other water regimes in all seasons.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Rainfede2
- Outcome
- vigor and productione2
- Direction
- lesse2
- Qualifier
- in all seasonse2
- Comparator
- the other water regimese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e2“Rainfed plants had in all seasons less vigor and production and, at harvest, higher concentrations of total soluble solids (TSS) and grape phenolics compounds, as well as lower pH, with respect to the other water regimes studied”
Claim · model-written summary
At harvest, rainfed vines had higher total soluble solids and grape phenolic compounds than vines under the other water regimes.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Rainfede2
- Outcome
- total soluble solids (TSS) and grape phenolics compoundse2
- Direction
- highere2
- Qualifier
- at harveste2
- Comparator
- the other water regimese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e2“Rainfed plants had in all seasons less vigor and production and, at harvest, higher concentrations of total soluble solids (TSS) and grape phenolics compounds, as well as lower pH, with respect to the other water regimes studied”
Claim · model-written summary
At harvest, rainfed vines had lower must pH than vines under the other water regimes.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Rainfede2
- Outcome
- pHe2
- Direction
- lowere2
- Comparator
- the other water regimese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e2“Rainfed plants had in all seasons less vigor and production and, at harvest, higher concentrations of total soluble solids (TSS) and grape phenolics compounds, as well as lower pH, with respect to the other water regimes studied”
Claim · model-written summary
Deficit irrigation gave intermediate values between rainfed and full irrigation for the studied parameters.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- DIe3
- Outcome
- the studied parameterse3
- Direction
- intermediatee3
- Comparator
- Rainfed and FIe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e3“DI grapevines, generally, had intermediate values between Rainfed and FI, which presented extreme values of the studied parameters respect to Rainfed”
Claim · model-written summary
Full irrigation gave extreme values of the studied parameters relative to rainfed.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- FIe3
- Outcome
- the studied parameterse3
- Direction
- extremee3
- Comparator
- Rainfede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e3“DI grapevines, generally, had intermediate values between Rainfed and FI, which presented extreme values of the studied parameters respect to Rainfed”
Claim · model-written summary
Colour and phenolic effects under rainfed conditions were mainly due to berry dehydration.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Rainfed regimee4
- Outcome
- grape color parameters and phenolic compoundse4
- Qualifier
- a dehydration of the berrye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e4“The effects observed on grape color parameters and phenolic compounds with the Rainfed regime were mainly due to a dehydration of the berry, which lowered the yield and the weight of the berry compared to the irrigated treatments”
Claim · model-written summary
Rainfed conditions lowered yield and berry weight compared with irrigated treatments.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Rainfede4
- Outcome
- yield and the weight of the berrye4
- Direction
- lowerede4
- Comparator
- irrigated treatmentse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e4“The effects observed on grape color parameters and phenolic compounds with the Rainfed regime were mainly due to a dehydration of the berry, which lowered the yield and the weight of the berry compared to the irrigated treatments”
Claim · model-written summary
Anthocyanin extractability was similar among water regimes despite differences in TSS accumulation.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- water regime treatmentse6
- Outcome
- extractability of the anthocyaninse6
- Direction
- similare6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e6“despite the differences obtained between water regime treatments in the TSS accumulation, the extractability of the anthocyanins was similar”
Claim · model-written summary
TSS accumulation was lower in deficit-irrigated berries than in rainfed berries.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- DIe5
- Outcome
- TSS accumulatione5
- Direction
- lowere5
- Comparator
- Rainfede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e5“The lower TSS accumulation in the DI berries with respect to the Rainfed, will favor obtaining wines with lower alcohol content”
Claim · model-written summary
Deficit irrigation can help close the gap between technological and phenolic maturity and positively affects vine yield and performance relative to rainfed.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- DIe7
- Outcome
- vine yield and performancee7
- Comparator
- rainfed strategye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate in Vitis vinifera L. cv. Bobal grapevine responses to three watering regimes”
e7“DI is a strategy that can help to close the gap in the imbalance between the technological and phenolic maturity, positively affecting vine yield and performance with respect to the rainfed strategy”
The same questions in other papers
irrigation · quality: phytochemicals · Vitis vinifera (wine grape)Positive and negative results
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See all 26 papers →rainfall · yield · Vitis vinifera (wine grape)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.