In this article:

Fruit bud initiation in Sultana is more sensitive to climatic factors than in other cultivars.

This paper considers historical findings regarding the influence of light and temperature on fruit bud initiation and fruitfulness in view of modern Sultana vineyard management practices.

Past results were reviewed and confirmed by experiments in which variability in vine size and structure was introduced by grafting and modifications of trellis design.

Light and Temperature Effects on Shoot Fruitfulness in Vitis vinifera L. cv. Sultana: Influence of Trellis Type and Grafting

2000, Australian Journal of Grape and WIne Research, vol 6, issue 2, pages 99-108

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