APS_July2023

J ournal of the A merican P omological S ociety

138

Figure 1. Single dragon trunk shaping + Horizontal leaf curtain, SDTS-H

Figure 2. Inclined single dragon trunk shaping + Horizontal leaf curtain, ISDTS-H

(3) inclined single dragon trunk shaping with vertical and horizontal leaf curtains (ISDTS VH, Figure 3.). Both ISDTS-H and ISDTS VH vines were oriented in an east–west di rection with an angle of 15° to the west/east and were spaced at 2.0 m×3.5 m, the SDTS-H vines were spaced at 1.2 m×4.0 m and trunk was north-south. ISDTS-H and ISDTS-VH

treatments were applied to 42 grapevine ex perimental units, and SDTS-H treatment ap plied to 62 grapevine experimental units, each unit area was about 300 m 2 , and the treatments were replicated three times in a completely randomized design. Four grape vines at each end of the experiment plot were excluded to minimize the border effect.