The Four Systems

摘要

The Upright Fruiting Offshoot (UFO) was developed at Washington State University in Prosser by Matt Whiting, based on radical cherry training trials begun by his predecessor, Greg Lang. With a between-row spacing of 10 feet, the height of the trees should be no more than 9 to 10 feet. Four 12-gauge wires are used on the trellis. The bottom wire is 2 feet above the ground, and the remaining wires are 2 feet apart. Grant and Ingels found that an additional wire was helpful between the first and secondwires for tying new shoots.