This section is from the book "The Gardener V3", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
The Duke of Buccleuch Grape does well on its own roots; but our own experience is that the Muscat of Alexandria is the stock for both it and the Golden Champion. It does not follow that because a Vine is very strong growing that it makes a good stock for others. Gros Guillaume, a very strong grower, is the worst of stocks, and it does best itself in Muscat roots. We have proved this beyond a doubt. Black Hamburg, an excellent stock for some Grapes, is not the stock for Gros Guillaume. It does very well on Hamburg roots for about two years, and then goes back; others have proved this besides ourselves.
 
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