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This study is part of the extended research focused on the identification of local fruit varieties, on their nutraceutical properties in order to be promoted on the market both as fresh fruits or processed products with added value. Among the South-East Transylvanian fruits, the old apple varieties Jonathan and Belle of Boskoop are cultivated in traditional orchards of Bran-Zărnești area. This article aims to present the results of a detailed analysis of the physical and biochemical transformations undergone in controlled atmosphere storage by the two apple varieties. Fruits were harvested from a traditional orchard from 40-50 years old trees, planted at 15 x 15 meters. The soil was maintained covered with multispecies grass and the vegetation was mown twice a year for hay production. Fruits were stored in controlled atmosphere cells of 1m3 capacity and determinations were done on monthly bases. Dry matter content, total soluble sugars and total acidity were significantly different at the two varieties. Similar values for the ascorbic acid content were registered. Belle of Boskoop had a low storage life and correlations between parameters were detailed. [ABSTRACT FROM AUTHOR]

The research was carried out in the period 2016-2018, in an experimental plantation established in 2015, with the Pinova variety in several graft combinations, directly on the B9, M9, MM 106 and Pi 80 rootstocks, and with B9 as intermediary on the A2 and MM106 rootstocks. The soil was maintained worked along the row for most variants, for 2 variants with grafting intermediary the soil was kept grassed, and for other 2 variants the intermediary was buried at planting. The rootstock influenced fruit production and fruit quality differently. The highest average production in the first years of fructification, of over 26 t/ha, were obtained for the rootstocks B9, M9 and combinations with intermediary of B9/MM106. The largest fruit were obtained from trees grafted with intermediary on A2 and worked soil, over 169 g and about 78 mm in diameter. A higher amount of soluble dry matter was recorded for the fruit obtained from grafted trees from variants V2, V5 and V8, while higher carbohydrate content was recorded for the variants V2, V8 and V1. The best firmness had the fruit of the V8 variant, while higher content in anthocyanins had the fruit of the V8 and V7 variants. [ABSTRACT FROM AUTHOR]