PERFORMANCE OF FOUR PEACH TRAINING SYSTEMS OVER EIGHT YEARS

Abstract

The low density, free-standing Open Center (OC) training system for peach production is inexpensive to establish and maintain. However, a lengthy establishment period is required before profitable yields are obtained and uneven distribution of fruiting wood within and between trees reduces potential fruit production and quality. Redhaven/Lovell trees were planted in 1985 to evaluate four peach training systems: OC, Central Leader (CL), Y-Trellis (YT), & Meadow Orchard (MO) planted at 278, 1111, 2222, & 3333 trees/ha, respectively. YT trees were trained with two scaffold limbs oriented across the row, each supported at the top by one wire (8 feet above ground). MO was managed as the Intensive System described by Erez. Irrigation was not available. Crop was reduced by drought in 1988 and by frost in 1990 & 92. YT produced profitable yields in the third season, with good light distribution throughout the canopy. OC trees required seven years to reach yields of YT. Excessive shoot growth following spring frosts has been difficult to manage in CL and MO, resulting in shading out and loss of fruiting zone. Training system has affected fruit number more than fruit size or quality.