Proportional Reduction in Shoot Growth of Grapevines With Root Systems Maintained at Constant Relative Volumes By Repeated Pruning

Abstract

Grapevines were established in water culture and shoot length and leaf number were measured after imposing four levels of root-pruning treatment. These levels (control, and 75, 50, and 25% of the control root volume) were maintained for 8 weeks by making weekly checks followed by appropriate pruning. Shoot dry weights were also measured in some plants at fortnightly intervals.