The French breeder Victor Ganzin developed a series of hybrid rootstocks in 1879 by crossing the variety Aramon Noir with an American wild vine Vitis rupestris, which he called AxR (Aramon x Rupestris) for short after the parents. The most successful of these was AxR 1 (in France, Australia and New Zealand it is called ARG 1). This was initially very popular in France and overseas due to its vigour and yield. As early as 1903, however, its insufficient resistance to phylloxera and its short life were recognised in France and its use was therefore abandoned.
After the Second World War, the University of California at Davis carried out extensive field trials to find suitable rootstocks. At the beginning of...
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