Focus on canopy management and special tribute to Professor Nelson J. Shaulis who opened new ways in grapevine Biology and training systems.

Alain Carbonneau and Giovanni Cargnello

This article is a tribute and a testimonial to the viticultural science career of Professor Nelson Shaulis of Cornell University / Geneva New York State Agricultural Experiment Station. Professor Shaulis is best known for his promotion of canopy division and development of the Geneva Double Curtain – GDC in 1966 which sets out the principles of grapevine canopy management to avoid shade in grapevine canopies which affects grapevine growth, yield and fruit maturation. These principles became accepted as new fundamental criteria and encouraged further research in vine Biology and canopy management.

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