http://www.permies.com/forums/posts/list/12063#110104
The most productive cultivars at this time are the pure Russian
cultivars, expect 7 kilograms of berries per plant. The cultivars
released from the University of Saskatchewan are hybrids, but less
productive, 4 kilograms of berries per plant.
In order to take softwood cuttings, you would require a license from
the University of Saskatchewan.
2 genetically different cultivars that flower at the same time are
required for the best fruit set.
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