In this article:
Field-grown vines (Vitis vinifera L. cv. Sultana) were examined for their fruitfulness and yield performance over four growing seasons.
Vines were either grafted to Ramsey rootstock (Vitis champini) or were grown on their own roots.
Four commercially applied trellis systems were investigated and fruiting potential was assessed shortly after budburst using the Merbein bunch count method.
They were again counted at harvest and vine yield recorded.
Sultana fruitfulness and yield as influenced by season, rootstock and trellis type
2001, Australian Journal of Grape and Wine Research, vol 7, pages 19-26
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