4 articles in this issue
P. Burger,P.G. Goussard
Ovules of stenospermocarpic seedless grapes were cultured under different conditions. The number of embryos was not significantly increased when ovules of Muscat Seedless were cultured on a medium supplemented with the plant growth regulators indole-3-ace... see more
W.P. Stewart,B.M. Freeman,J.K. Dick
To investigate the movement of photoassimilates within a wine canopy, potted Vitis vinifera L. cv. Riesling grapevines were pruned to two different dormant cane lengths of 100 mm and 900 mm. Shoots on these canes were vertically trained with one non-fruit... see more
W.J. Conradie,J.L. Van Zyl,P.A. Myburgh
The effect of soil preparation depth on leaching of N, Ca, Mg and K was determined for a granitic soil by means of field Iysimeters. For this purpose trenches (22,5 m x 2,7 m) with depths of 400 mm (T40), SOO mm (TSO) and 1200 mm (T120) were excavat... see more
P.A. Myburgh,J.L. Van Zyl,W.J Conradie
There is uncertainty about the optimum soil preparation depth for vineyards and to what extent irrigation can compensate for insufficient soil depth. Pinot noir was planted under non-irrigated conditions to soil preparation depths of 200 mm, 400 mm, 600 m... see more