Practical in the vineyard

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A guide to grapevine abnormalities in South Africa: Abiotic abnormalities – hail, lightning, sulphur burn, bunch stem necrosis and growth arrestment (Part 6.3)

General and introductoryHarmful occurrences such as hail, lightning, sulphur burn, bunch stem necrosis and growth arrestment phenomenon (hereafter GAP) – widely divergent as these may be – may be singled out as wellknown problem situations affecting grapevines in the...
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