BREEDING DISEASE RESISTANT CAPSICUM FOR WIDE ADAPTATION
Productivity of bell capsicum in warm, humid regions is limited by the diseases bacterial spot, incited by Xanthomonas campestris pv. vesicatoria (Xcv), and potato virus Y (PVY). Genetic resistances offer the best potential for long term control. Methods for selecting disease resistant plants were devised. Durable, race non-specific resistance to Xcv was transferred from unadapted plant introduction lines to bell capsicum. Durability of resistance to Xcv in breeding lines which combine three race specific genes is unknown. Only plant accessions with multiple potyvirus resistances have proven effective against endemic strains of PVY. Backcrossing modified with inbreeding for maximum segregation is used for selecting resistance to PVY and race non-specific resistance to Xcv. These resistances are expected to be effective in other producing regions. Fruit yields of released cv. 'Redlands Sweet Sue' and advanced breeding lines have exceeded those of common cultivars by up to 20 t/ha in diseased trial plantings in S.E. Queensland.
Hibberd, A.M., Persley, D.M., Nahrung, G.C. and Gillespie, D. (1989). BREEDING DISEASE RESISTANT CAPSICUM FOR WIDE ADAPTATION. Acta Hortic. 247, 171-174