Evaluation of Pillnitz Re-cultivars(R) in two apple production areas of Hungary.

摘要

In the early nineties a project was initiated to evaluate ten scab (Venturia inaequalis) resistant cultivars selected in Dresden-Pillnitz in the central and eastern apple production areas of Hungary. In 1993, Retina, Reanda, Releika, Relinda, Remo,Renora, Resi, Rewena, Reglindis, and Reka were top-grafted on adult trees of Jonathan on M 4, and in 1994 four trees of each cultivar on M 26 were planted in Szigetcsep, at the Research Station of the University of Horticulture. Eight of these Re-cultivars were also grown in Ujfeherto Research Station, located in the main apple production area of Hungary. The trees were grown without fungicide sprays. Directly after harvest in Szigetcsep, fruits of Reanda and Releika were preferred overall, but they were less preferred than Freedom. Following 6 months storage, Reanda and Relinda were the most preferred among the scab resistant cultivars. In Ujfeherto the colour, the texture and the flavour of Rewena were the most preferred, followed by Relinda and Renora. Significant differences in storability of the cultivars were found. Scab infection of the leaves or fruits was not noted in the field. High levels of infection by powdery mildew (Podosphaera leucotricha) were observed on the varieties Resi, Releika,moderate levels on Reanda, Renora, Retina and Relinda and low levels on the others.