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The experiment described here was designed to investigate whether a Sultana grown under the intense solar radiation of the Murray Valley Irrigation Area of Australia has an ”excess” of foliage such that partial shading would be of no consequence to production.
About four weeks after anthesis one of six defoliation treatments was given to Sultana vines in the experiment.
Effects of the defoliation on berry development, bud fertility, yield, shoot development and fruit exposure were reported.
The Effect of Controlled Defoliation in the Sultana Vine
1969, American Journal of Enology and Viticulture, vol 20, issue 4, pages 237 – 250
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