Mr Dicey had seen non-irrigated vines in South Africa stop growing during droughts, but recover in the following season. The first benefit of dryland vines would be in the savings from not installing irrigation systems through new vineyards. Perhaps even more importantly, Mr Dicey predicted dryland vines would take the quality of the region’s wines to a new level. Mr Dicey said that irrigation systems meant the roots of vines stayed near the soil surface. Dryland vines were more resilient as their roots were "far more widespread and miles deeper".
Source: Otago Daily Times February 21, 2020 15:22 UTC