Technical Abstract: Developed over the last two decades, the Rotating Cross-Arm (RCA) trellis and cane training system is beginning to make an impact on the blackberry (Genus Rubus, subgenus Rubus) industry in the United States (US), as it has been successfully transferred to growers in more than 30 states in the last two years and has helped to increase blackberry acreage in the eastern US by about approximately 100 ha. Our research and development effort on the RCA technology has shown that 1) winter injury can be reduced by modifying the crop environment and production techniques, 2) white drupe formation can be reduced by positioning fruit away from direct sunlight, and 3) with the fruit positioned on one side of the row, harvest efficiency is improved. Our research has also shown that RCA technology can be used to generate several times more long-cane plants than traditional propagation methods.