Raspberries and blackberries (brambles) are high-value fruit crops for commercial growers in Iowa. High tunnel production hastens the growing season, promoting greater yield and increased berry quality by protecting fruit from wind and rain. Similar to high tunnels, use of row covers has shown hastened production, but row covers are removed later in the year eliminating protection from weather. The primary goal of this project was to evaluate differences in total yield of primocane-fruiting brambles grown inside a high tunnel, under row covers, and with no cover. A secondary goal was to evaluate fresh and postharvest berry quality of primocane-fruiting brambles grown inside a tunnel structure, under row covers, and with no cover.
Iowa State University
Portz, Dennis N.; Nonnecke, Gail R.; and Wagner, Samantha, "Practices to Extend the Availability of Fresh Iowa-grown Raspberries and Blackberries" (2010). Iowa State Research Farm Progress Reports. 354.