Evaluation of the field resistance of old and new Hungarian apple cultivars to scab and powdery mildew
One of the most important breeding tasks at present is the expansion of the choice of fruit cultivars suitable for organic farming. Resistance to pathogens is one of the major requirements to be met by new cultivars, but good fruit quality and excellent fertility are also important aspects. Within the framework of a post-doc programme, selected old and new cultivars from the Corvinus apple breeding programme, all resistant to fire blight, were tested under field conditions for resistance to apple scab and powdery mildew. The six old cultivars exhibited at most mild symptoms when grown with intensive plant protection. Three new cultivars and three candidate cultivars proved to be resistant to scab and tolerant to powdery mildew even when no fungicides were applied, hence are recommended for testing under organic farming conditions.
Király, I., Papp, D., Szabó, T., Budainé Veres, Á., Palásthy, G. and Tóth, M. (2017). Evaluation of the field resistance of old and new Hungarian apple cultivars to scab and powdery mildew. Acta Hortic. 1172, 41-46
Malus × domestica, Venturia inaequalis, Podosphaera leucotricha, resistance breeding, organic production