PERGOLA/GDC VINEYARD

PERGOLA/GDC VINEYARD

PERGOLA/GDC VINEYARD

This type of system was designed in the US in the Fifties, at the experimental station of Geneva (State of New York): it consists of two plant dividers hanging parallel to the row axis and supported by metal brackets. In the 70s, the University of Bologna made significant changes to the system in order to achieve the current plantation type, which can be fully mechanized. The Gdc consists of two permanent and parallel cordons positioned at a distance of 1.50 m and at a height of 1.65-1.80 m. The permanent cordons hold short spurs of 1-3 buds conceived to generate fruit buds at the two ends. The posts used must be in pre-stressed concrete, with sections of 8×8 cm for the intermediate posts, which are planted at a minimum depth of 80 cm, and with sections of 8x10x12 cm for the head posts, which are planted at a minimum depth of 90-100 cm. The two permanent cordons run on two rows that measure at least 4.00 mm in diameter and which are kept equidistant from each of the 70 cm wide self-supporting brackets. The two production dividers must be well separated for proper operations of the system; therefore, the “combing” operation is needed and indispensable, since it ensures the autonomous development of the divider and it helps the spur section to grow outwards; such operation is carried out with the use of the accessories applied directly on the mobile brackets.

Characteristics

  • Cost-effective cultivation interventions, even manual ones
  • excellent productivity
  • optimal opportunity to apply integrated mechanization
  • good product quality
  • vertical harvesting

Type of installation:

  •  Self-supporting brackets
  •  Supporting wires Ø 4.0 ÷ 4.5 mm
  •  Secondary plant supporting wire Ø 2.6 ÷ 3.15 mm
  •  Iron or bamboo stakes to support the plants