Tannin accumulation and composition were determined in skins and seeds isolated from Vitis vinifera cv. Syrah grapes submitted to contrasting water regimes under semiarid climatic conditions. Three irrigation treatments were conducted, starting at berry set through harvest of two growing seasons, 2011 and 2012: irrigation at 100% of crop evapotranspiration ETc (FI), irrigation at 50% of ETc (DI) and non-irrigated (NI). Seed total tannins did not vary with maturity but those of skins underwent a progressive decline (especially in 2011), expressed both on a fresh weight and on a per berry basis. Skin total tannin concentration and content per berry were increased under NI and DI conditions, mainly in 2012. In contrast, seed total tannins (in 2012) and flavan-3-ol monomers and tannin oligomers (both years) were higher in the fully irrigated vines (FI). Skin polymer size increased during ripening, NI and DI skins showing higher mean degree of polymerization (mDP) compared to FI at harvest. NI was also associated with a lower percentage of galloylation (%G) in skin oligomeric fraction (in 2012) and a lower percentage of prodelphinidins in the skin polymeric fraction (both years) at harvest. The mDP and %G of seed extracts did not vary during ripening and were higher in NI but only in 2012. According to the results, management of vine water status was shown to influence tannin amount and composition of Syrah grapes grown under semiarid conditions.
机构:
INTA, Estn Expt Mendoza, Mendoza, Argentina
Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, Australia
South Australian Res & Dev Inst, Adelaide, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Bonada, M.
Jeffery, D. W.
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Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Jeffery, D. W.
Petrie, P. R.
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Treasury Wine Estates Ltd, Magill, SA 5072, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Petrie, P. R.
Moran, M. A.
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South Australian Res & Dev Inst, Adelaide, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Moran, M. A.
Sadras, V. O.
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Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, Australia
South Australian Res & Dev Inst, Adelaide, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
机构:
Washington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA
Inst Nacl Tecnol Agr, Estn Expt Agr Mendoza, Wine Res Ctr, RA-5507 Mendoza, ArgentinaWashington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA
Casassa, Luis Federico
Keller, Markus
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Washington State Univ, Dept Hort, Irrigated Agr Res & Extens Ctr, Prosser, WA 99350 USAWashington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA
Keller, Markus
Harbertson, James F.
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Washington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USAWashington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA
机构:
INTA, Estn Expt Mendoza, Mendoza, Argentina
Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, Australia
South Australian Res & Dev Inst, Adelaide, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Bonada, M.
Jeffery, D. W.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Jeffery, D. W.
Petrie, P. R.
论文数: 0引用数: 0
h-index: 0
机构:
Treasury Wine Estates Ltd, Magill, SA 5072, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Petrie, P. R.
Moran, M. A.
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h-index: 0
机构:
South Australian Res & Dev Inst, Adelaide, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
Moran, M. A.
Sadras, V. O.
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h-index: 0
机构:
Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, Australia
South Australian Res & Dev Inst, Adelaide, SA 5064, AustraliaINTA, Estn Expt Mendoza, Mendoza, Argentina
机构:
Washington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA
Inst Nacl Tecnol Agr, Estn Expt Agr Mendoza, Wine Res Ctr, RA-5507 Mendoza, ArgentinaWashington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA
Casassa, Luis Federico
Keller, Markus
论文数: 0引用数: 0
h-index: 0
机构:
Washington State Univ, Dept Hort, Irrigated Agr Res & Extens Ctr, Prosser, WA 99350 USAWashington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA
Keller, Markus
Harbertson, James F.
论文数: 0引用数: 0
h-index: 0
机构:
Washington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USAWashington State Univ, Sch Food Sci, Wine Sci Ctr, Richland, WA 99354 USA