NITROGEN AND WATER MANAGEMENT STRATEGIES FOR WINE-GRAPE QUALITY

J Wade, Bruno Holzapfel, K Degaris, D Williams, M Keller

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The effects of vineyard nitrogen (N) application timing and irrigation strategy on fruit quality and amino-N (proline and arginine) composition of Vitis vinifera 'Shiraz' were investigated. Three irrigation treatments (PRD, RDI and standard practice (STD) were factorialised with three nitrogen (N) applications (bloom to veraison, post-harvest, and split application bloom to veraison/post-harvest). No interactive effects of N and irrigation treatments were found. However, RDI decreased yield, decreased berry size, achieved ripeness (22.5 °Brix) earlier and increased berry anthocyanin concentration compared with STD. PRD had no effect on yield, berry anthocyanin concentration or berry weight, but the vines were harvested one week earlier than were the STD vines. A high level of N applied at bloom to veraison delayed ripening, and resulted in a lower berry anthocyanin concentration. Juice arginine concentration was highest in response to bloom to veraison N application, and decreased with irrigation treatment in the order: STD > PRD > RDI. PRD and RDI decreased the proline concentration in the juice compared to STD. RDI and post-harvest N application increased the juice proline:arginine ratio. These results suggest that N application timing and irrigation strategy can have implications for the fermentation process as well as fruit quality.
Original languageEnglish
Pages (from-to)61-67
Number of pages7
JournalActa Horticulturae
Volume640
Publication statusPublished - 2004

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wine grapes
water management
small fruits
arginine
nitrogen
proline
anthocyanins
juices
application timing
irrigation
irrigation management
vines
fruit quality
split application
brix
vineyards
Vitis vinifera
ripening
fermentation

Cite this

Wade, J., Holzapfel, B., Degaris, K., Williams, D., & Keller, M. (2004). NITROGEN AND WATER MANAGEMENT STRATEGIES FOR WINE-GRAPE QUALITY. Acta Horticulturae, 640, 61-67.
Wade, J ; Holzapfel, Bruno ; Degaris, K ; Williams, D ; Keller, M. / NITROGEN AND WATER MANAGEMENT STRATEGIES FOR WINE-GRAPE QUALITY. In: Acta Horticulturae. 2004 ; Vol. 640. pp. 61-67.
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Wade, J, Holzapfel, B, Degaris, K, Williams, D & Keller, M 2004, 'NITROGEN AND WATER MANAGEMENT STRATEGIES FOR WINE-GRAPE QUALITY', Acta Horticulturae, vol. 640, pp. 61-67.

NITROGEN AND WATER MANAGEMENT STRATEGIES FOR WINE-GRAPE QUALITY. / Wade, J; Holzapfel, Bruno; Degaris, K; Williams, D; Keller, M.

In: Acta Horticulturae, Vol. 640, 2004, p. 61-67.

Research output: Contribution to journalArticle

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AB - The effects of vineyard nitrogen (N) application timing and irrigation strategy on fruit quality and amino-N (proline and arginine) composition of Vitis vinifera 'Shiraz' were investigated. Three irrigation treatments (PRD, RDI and standard practice (STD) were factorialised with three nitrogen (N) applications (bloom to veraison, post-harvest, and split application bloom to veraison/post-harvest). No interactive effects of N and irrigation treatments were found. However, RDI decreased yield, decreased berry size, achieved ripeness (22.5 °Brix) earlier and increased berry anthocyanin concentration compared with STD. PRD had no effect on yield, berry anthocyanin concentration or berry weight, but the vines were harvested one week earlier than were the STD vines. A high level of N applied at bloom to veraison delayed ripening, and resulted in a lower berry anthocyanin concentration. Juice arginine concentration was highest in response to bloom to veraison N application, and decreased with irrigation treatment in the order: STD > PRD > RDI. PRD and RDI decreased the proline concentration in the juice compared to STD. RDI and post-harvest N application increased the juice proline:arginine ratio. These results suggest that N application timing and irrigation strategy can have implications for the fermentation process as well as fruit quality.

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