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Geneva Double Curtain

An educational system developed in the early 1960s by US viticulturalist Dr. Nelson Shaulis (1913-2000) at Cornell University (Geneva, New York State) Double Curtain Education). It belongs to the group of cordon education systems. It was originally created specifically for the Concord grape variety to enable mechanical harvesting. The vines are pulled onto a high T-shaped framework (also V-shaped). The vine row spacing is about three metres. The young shoots are divided to the left and right and the foliage is directed onto two fold-down wire frames.

Geneva Double Curtain

By folding down, the plant grows downwards, which inhibits the growth and improves the incidence of light. The system has gained little importance in the USA and Australia; in Europe it has not proved successful at all. A variant is the duplex harvesting system developed in California, which allows a largely mechanical harvest. Here, only the grape-bearing fruit shoots (not the foliage shoots) are attached to a wire. The method developed in France Lyre developed in France is also similar, but with the shoots pointing upwards. See also under vineyard care.

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