van Zyl, J.L., Viticultural and Oenological Research Institute, Stellenbosch, South Africa

• South African Journal of Enology and Viticulture Vol. 8 No. 2 (1987) - Articles
  Diurnal Variation in Grapevine Water Stress as a Function of Changing Soil Water Status and Meteorological Conditions
  Abstract  PDF
• South African Journal of Enology and Viticulture Vol. 7 No. 2 (1986) - Articles
  Canopy Temperature as a Water Stress Indicator in Vines
  Abstract  PDF
• South African Journal of Enology and Viticulture Vol. 5 No. 1 (1984) - Articles
  The Effect of Cover Crop Management on Soil Conditions and Weed 6ontrol in a Colombar Vineyard in Oudtshoorn
  Abstract  PDF
• South African Journal of Enology and Viticulture Vol. 5 No. 1 (1984) - Articles
  Response of Colombar Grapevines to Irrigation as Regards Quality Aspects and Growth
  Abstract  PDF