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IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2013 9 GiESCO 2013 – Session 5: Vineyard management, yield, quality 9 The effect of water stress on the reproductive performance of Shiraz grafted to rootstocks

The effect of water stress on the reproductive performance of Shiraz grafted to rootstocks

Abstract

An experiment was conducted in the Barossa Valley, South Australia to examine the effects of rootstock on reproductive performance of Shiraz (Vitis vinifera L.) in the absence of irrigation. Irrigation applied to control treatments was between 0.6ML/ha-1.3ML/ha across three seasons.

The absence of irrigation strongly influenced vine growth and performance.

Yields were reduced in unirrigated treatments due to a reduction in bunch number, bunch weight and berry weight rather than fruitset

Unirrigated Ramsey was the only rootstock able to maintain a comparable yield to irrigated rootstocks.

In contrast, unirrigated own roots performed well in the first season but not in the second and third seasons when water stress caused a negative effect on yield.

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Publication date: 07/09/2026

Issue: GiESCO 2013

Type: Poster

Authors

Catherine M. Kidman1,2, Sandra Olarte Mantilla1, Peter Dry1,3, Michael G. McCarthy4, Cassandra Collins1,*

1 School of Agriculture, Food and Wine, University of Adelaide, Waite Research Institute, PMB 1, Glen Osmond, SA 5064

2 Wynns Coonawarra Estate, Memorial Drive, Coonawarra, SA 5263

3 The Australian Wine Research Institute, Wine Innovation Cluster, Glen Osmond SA 5064

4 South Australian Research and Development Institute, Research Road, Nuriootpa, 5355

Contact the author*

Keywords

fruitfulness, fruitset, reproductive performance, water stress

Tags

GiESCO | GiESCO 2013 | IVES Conference Series

Citation

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