Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 2
Written by Valeria PETRE, Gheorghe PETRE, Adrian ASĂNICĂ
The last fifteen years of research activity at Research and Development Station for Fruit Growing Voinesti, conclude in a large number of patented apple varieties with genetic resistance to diseases which proved high quality and performance in the orchards. Therefore, the aim of the paper is to present and highlight the wide range of achievements in terms of apple resilient national breeds. The trees vigour defined by the circumference of the trunk measured in the 10th year apple varieties, grafted on the M9 rootstock recorded values between 14.9 cm for 'Cezar’ variety and 18.4 cm for 'Redix’ variety. The crown volume calculated per unit area, was of 6,800 m3 /ha for the 'Iris’ variety and 8,800 m3 /ha for the 'Redix’ variety, which proved to be more vigorous. The productivity during the full fruiting period of the nine scab resistant apple varieties, grown in a high-density system, was between 28-45 t/ha, the most productive being considered 'Iris’, 'Real’, 'Remar’, 'Valery’ and 'Cezar’ with constant yields over 35 t/ha. The fruit size varied between 155 g and 180 g, smaller ones remarked at the varieties 'Iris’, 'Inedit’, 'Voinicel’ and 'Revidar’ and larger fruits at the varieties 'Cezar’, 'Valery’, 'Remar’ and 'Redix’ with fruits over 170 g that match to the market requirements.
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