improvements in wine-making technology, access to better grape varieties and disease-resistant clones, and systematic research into viticulture.

After the repeal of alcohol prohibition in Canada in 1927, provinces strictly limited the number of licences to produce wine. A nearly 50-year moratorium on issuing new winery licences was finally dropped in 1974. During the same decade, demonstration planting began to show that Vitis vinifera could be successfully grown in Canada. Other growers