The Effect of Grapevine Rootstock on the Performance of Vitis vinifera L. ( cv. Colombard) on a Relatively Saline Soil

  • J.M. Southey Viticultural and Oenological research Institute (YORI), Stellenbosch
  • J .H. Jooste Botany Department, University of Stellenbosch,


The performance of grapevine cv. Colom bard grafted onto 25 rootstocks (1045P, 1103P, 775P, 99R, (RY 13), 99R (RY 2), UOR, 140Ru, 143-B Mgt, 101-14 Mgt, Ramsey, 13-5 EVEX, Constantia Metallica, Jacquez, Grezot 1, 216/3 Castel and US hybrids, 1-6, 3-6, 4-4, 2-1, 24-41, 24-10, 35-1-15, 16-13-23, 16-13-26and12-6-8] on relatively saline soils was investigated for six years. The highest yields were obtained with 13-5 EVEX, Ramsey, 143-B Mgt, 1045P and 140 Ru, whereas the US hybrids generally performed poorly, particularly those with Jacquez in their parentage. At this early stage in the trial a highly positive correlation·between yield and cane mass was found. Although total soluble solids concentration and pH generally declined with increasing yield and cane mass, differences in grape ~omposition appeared to be largely the result of differences in actual maturity.