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Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Laurențiu Florin PREDA, Ana Cornelia BUTCARU, Florin STĂNICĂ

The aim of this study is to present the behaviour of new apple scab resistant varieties cultivated in Bucharest area. Apple scab (Venturia inaequalis) is an important and dangerous pathogen, specific treatment being required and, in many cases, the products exceed the new pesticides limits. Every year, new resistant varieties are released by breeders and before their spread into commercial orchards, they need to be tested in specific growing conditions. In the Didactic Experimental Orchard of the Faculty of Horticulture within USAMV of Bucharest more than 25 apple cultivars are planted and monitored. Most of the trees are grafted of M9 rootstock, planted at 3.5 x 1.0 m and led as Vertical Axe. The soil is maintained covered with a mixture of perennial grasses on the interrow and clean with herbicide on the row. Drip irrigation is applied. The paper presents the comparative results focused on the biometrical data like: average tree height, type, number and average length of fruiting shoots, trunk cross sectional area. For each variety fruit yield was calculated. Basic fruits analyses at the harvest moment are presented.

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