ISHS Acta Horticulturae 60: Symposium on Breeding and Machine Harvesting of Rubus and Ribes
PROGRESS IN RUBUS BREEDING AT EAST MALLING |
| Author: | E. Keep |
| Abstract:
Current aims in red raspberry breeding at East Malling include: suitability for mechanical harvesting; higher yields through fruit size (for hand picking for dessert) or fruit number (for mechanical harvesting); extending the season by breeding extra early and extra late summer-fruiting types and earlier autumn-fruiting selections; shorter self-supporting selections; improved shelf life; resistance to cane diseases, virus and mildew, to the virus vector Amphorophorarubi and to Byturus tomentosus. Wild species donors include: R. occidentalis for fruit qualities and A. rubi resistance; R. cockburnianus for fruit number and ease of abscission of fruit; R. crataegifolius for ease of abscission, stout, self-supporting canes and Byturus resistance; R. spectabilis for earliness; R. arcticus and R. odoratus for autumn-fruiting; and R. coreanus for disease and Byturus resistance. A small-scale programme is aimed at breeding spineless, Verticillium dahlia e-resistant black raspberries. Since 1955, 15 major genes concerned with pest and disease resistance, and 13 controlling vegetative characters in Rubus have been identified. | |
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