ISHS Acta Horticulturae 347: II International Symposium on Integrated Fruit Production
RESULTS FROM THE RESISTANCE BREEDING PROGRAMME FOR APPLE IN DRESDEN-PILLNITZ |
| Author: | C. Fischer |
| Abstract:
The long-term resistance breeding programme of apple in Dresden-Pillnitz has the objective of supplying fruit for various purposes, combining the properties: good fruit quality and regular, high yields with resistance to biotic and abiotic injury factors. Economically important diseases, especially scab, mildew, and fireblight, are included in the apple resistance breeding programme. Selections resistant to scab, mildew and fireblight were obtained from crosses between dessert apple cultivars and resistant hybrids from old local cultivars and wild species. Significant selection rates were obtained from parents with simple, double and triple resistance to scab, mildew and fireblight. From the apple breeding programme 12 resistant apple cultivars have been selected with several ripening periods. The cultivars Reka, Retina, Reglindis, Realka, Releta, Remura, Reanda, Renora, Rene and Rewena are suitable for the fresh market; Remo and Relinda are also suitable for processing. Within this range the cultivars Retina, Reglindis, Rewena and Remo are at present the cultivars commercially propagated under licence. Trials carried out for 12 years without fungicide spraying, under commercial conditions have shown a durable scab resistance and a good level of mildew resistance in new cultivars. Therefore, with the range of new resistant cultivars, reduced fungicide sprays are possible without risk from scab and mildew damage. Apple production with a range of resistant cultivars is an alternative method for reducing fungicide use. | |
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