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Seasonal variability in the effect of temperature on key phenological stages of four table grapes cultivars.

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Title: Seasonal variability in the effect of temperature on key phenological stages of four table grapes cultivars.
Authors: Rafique, Rizwan1,2 (AUTHOR) rizwanrafique@ufl.edu, Ahmad, Touqeer1,3 (AUTHOR), Ahmed, Mukhtar4 (AUTHOR), Khan, Muhammad Azam1 (AUTHOR), Wilkerson, Carol J.5 (AUTHOR), Hoogenboom, Gerrit2,6 (AUTHOR)
Source: International Journal of Biometeorology. May2023, Vol. 67 Issue 5, p745-759. 15p.
Subject Terms: *Table grapes, *Temperature effect, *Cultivars, *Viticulture, *Sustainability, *Growing season, *Grape growing, *Berries, *Grapes
Geographic Terms: Pakistan
Abstract: Progressive warming of the grape growing regions has reduced the land capability for sustainable grapevine production and the geographical distribution of grapes. Bud burst, blooming, berry set, veraison, and harvest are the key phenological stages of grapevine, and are crucial for managing vineyard activities. The objective of this study was to evaluate the effect of seasonal temperature variability on the timing of key phenological stages of table grape cultivars in a new emerging viticulture region, i.e., the Pothwar region of Pakistan. Phenological stages of four table grape cultivars were recorded during two consecutive growing seasons at two locations. All phenological stages were attained earlier for the relatively warmer location, i.e., Chakwal. Similarly, the length of the growing season from bud burst to harvest was 15 to 21 days longer for the 2020 growing season than for the 2019 growing season, which corresponds to the inter-annual temperature variability. Moreover, the grapevine cultivars showed a distinct response for each growth phase; cv. Perlette matured earlier while cv. NARC Black was the last to ripen. Despite the large variability in the length of the active growing period from bud burst to harvest, accumulated growing degree days (GDD) varied only in a narrow range, i.e., 1510–1557 for cv. Perlette, 1641–1683 for cv. King's Ruby, 1744–1770 for cv. Sugraone, and 1869–1906 for cv. NARC Black. This implies that seasonal temperature variability using GDD is a better indicator for the phenology of table grape cultivars compared to regular time. It is clear from the results from this study that the variation in phenological responses of table grape cultivars due to temperature differences necessitates genotype and site-specific vineyard management. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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An: 163614305
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  Label: Title
  Group: Ti
  Data: Seasonal variability in the effect of temperature on key phenological stages of four table grapes cultivars.
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  Data: <searchLink fieldCode="AR" term="%22Rafique%2C+Rizwan%22">Rafique, Rizwan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> rizwanrafique@ufl.edu</i><br /><searchLink fieldCode="AR" term="%22Ahmad%2C+Touqeer%22">Ahmad, Touqeer</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahmed%2C+Mukhtar%22">Ahmed, Mukhtar</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Khan%2C+Muhammad+Azam%22">Khan, Muhammad Azam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wilkerson%2C+Carol+J%2E%22">Wilkerson, Carol J.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hoogenboom%2C+Gerrit%22">Hoogenboom, Gerrit</searchLink><relatesTo>2,6</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Biometeorology%22">International Journal of Biometeorology</searchLink>. May2023, Vol. 67 Issue 5, p745-759. 15p.
– Name: Subject
  Label: Subject Terms
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  Data: *<searchLink fieldCode="DE" term="%22Table+grapes%22">Table grapes</searchLink><br />*<searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink><br />*<searchLink fieldCode="DE" term="%22Cultivars%22">Cultivars</searchLink><br />*<searchLink fieldCode="DE" term="%22Viticulture%22">Viticulture</searchLink><br />*<searchLink fieldCode="DE" term="%22Sustainability%22">Sustainability</searchLink><br />*<searchLink fieldCode="DE" term="%22Growing+season%22">Growing season</searchLink><br />*<searchLink fieldCode="DE" term="%22Grape+growing%22">Grape growing</searchLink><br />*<searchLink fieldCode="DE" term="%22Berries%22">Berries</searchLink><br />*<searchLink fieldCode="DE" term="%22Grapes%22">Grapes</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Pakistan%22">Pakistan</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Progressive warming of the grape growing regions has reduced the land capability for sustainable grapevine production and the geographical distribution of grapes. Bud burst, blooming, berry set, veraison, and harvest are the key phenological stages of grapevine, and are crucial for managing vineyard activities. The objective of this study was to evaluate the effect of seasonal temperature variability on the timing of key phenological stages of table grape cultivars in a new emerging viticulture region, i.e., the Pothwar region of Pakistan. Phenological stages of four table grape cultivars were recorded during two consecutive growing seasons at two locations. All phenological stages were attained earlier for the relatively warmer location, i.e., Chakwal. Similarly, the length of the growing season from bud burst to harvest was 15 to 21 days longer for the 2020 growing season than for the 2019 growing season, which corresponds to the inter-annual temperature variability. Moreover, the grapevine cultivars showed a distinct response for each growth phase; cv. Perlette matured earlier while cv. NARC Black was the last to ripen. Despite the large variability in the length of the active growing period from bud burst to harvest, accumulated growing degree days (GDD) varied only in a narrow range, i.e., 1510–1557 for cv. Perlette, 1641–1683 for cv. King's Ruby, 1744–1770 for cv. Sugraone, and 1869–1906 for cv. NARC Black. This implies that seasonal temperature variability using GDD is a better indicator for the phenology of table grape cultivars compared to regular time. It is clear from the results from this study that the variation in phenological responses of table grape cultivars due to temperature differences necessitates genotype and site-specific vineyard management. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s00484-023-02452-0
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 745
    Subjects:
      – SubjectFull: Table grapes
        Type: general
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Cultivars
        Type: general
      – SubjectFull: Viticulture
        Type: general
      – SubjectFull: Sustainability
        Type: general
      – SubjectFull: Growing season
        Type: general
      – SubjectFull: Grape growing
        Type: general
      – SubjectFull: Berries
        Type: general
      – SubjectFull: Grapes
        Type: general
      – SubjectFull: Pakistan
        Type: general
    Titles:
      – TitleFull: Seasonal variability in the effect of temperature on key phenological stages of four table grapes cultivars.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Rafique, Rizwan
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          Name:
            NameFull: Ahmad, Touqeer
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            NameFull: Ahmed, Mukhtar
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            NameFull: Khan, Muhammad Azam
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            NameFull: Wilkerson, Carol J.
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            NameFull: Hoogenboom, Gerrit
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          Dates:
            – D: 01
              M: 05
              Text: May2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 00207128
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            – Type: volume
              Value: 67
            – Type: issue
              Value: 5
          Titles:
            – TitleFull: International Journal of Biometeorology
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