Partial rootzone drying does not affect fruit yield of raspberries

Pot experiments with split-root plants and two years of field experiments with manipulation of soil water content have shown that partial rootzone drying (PRD) does not affect yield in raspberries, Rubus idaeus L. 'Glen Ample' and 'Glen Prosen'. In some cases PRD can reduce stomatal conductance, thus reducing water loss. This results in a higher water use efficiency. Partial rootzone drying may be an efficient irrigation strategy where raspberries are produced under shelter.