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Cytogenetic studies in Ribes

, : Cytogenetic studies in Ribes. Proceedings of the Balsgard Fruit Breeding Symposium held at Balsgard Fruit Breeding Institute, Fjalkestad, Sweden on August 31st-September 2nd, 1966. 197-204

Interspecific crosses were easy and the hybrids fertile in the Ribes and Grossularia sections, but there was variation in the Coreosma section. Some intersectional crosses are described. Tetraploids were produced by colchicine treatment of seedlings. Autopolyploids sometimes showed a reduction in vigour and fertility but allopolyploids were fertile and showed hybrid vigour after intercrossing. Back crossing to parents resulted in segregation of useful types.


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