Articles

Promising yellow-colored apple cultivars

Article number
1327_42
Pages
317 – 320
Language
English
Abstract
The paper presents the growth and reproductive properties of four apple cultivars with yellow-colored fruit skin – ‘Gold Milenium’, ‘Goldrush’, ‘Defloga’ and ‘Golden Resistant’, compared with the standard cultivar ‘Golden Delicious’. The study was conducted over the 2016-2019 period in a collection plantation of the Institute of Agriculture – Kyustendil.
The trees are grafted on MM 106 rootstocks, planted in 2012 on 4.5×2.5 m spacing and grown as free-growing crowns.
Five apple trees of each cultivar were evaluated during the period of initial and fast increasing fruiting.
All four cultivars are well adapted to the conditions of the area and have valuable biological and economic qualities.
The highest average yields were recorded for the cultivars ‘Defloga’ (19.8 kg tree-1) and ‘Gold Milenium’ (19.1 kg tree-1). The same two cultivars had the largest fruit (187.0 and 180.6 g, respectively). The highest soluble solids content were recorded for ‘Golden Delicious’, followed by ‘Goldrush’.

Publication
Authors
S. Dimitrova, D. Sotirov, Laiqing Song
Keywords
Malus × domestica, growth, yield, fruit size, biochemical composition
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