(Dr. Pat Bowen - PARC Summerland)

This project will focus on the effects of deficit irrigation on coarse textured soils in the South Okanagan. Within the growing season three factors must be managed to optimize fruit development while minimizing the risk of delayed fruit maturation, low yields, and poor cane ripening. These are: fruit light microclimate, vine balance and water supply.

Two experiments, each with deficit irrigation treatments, will be conducted: one that includes vine balance levels, and the other with timing of leaf removal. The effects of the treatments on vine and leaf physiology, fruit yield, berry quality, and the incidence of pests and diseases will be determined. Carry-over effects of the treatments to the following year will also be studied.