engleski

Fruit quality of nine old apple cultivars on MM106 rootstock

The quality of the nine local apple cultivars ('Bijeli fler', ' Carević', 'Čelenka', 'Crvena jesenska rebrača', 'Paradija', 'Paulaner weinapfel', 'Perovnjača', 'Winter Banana' and 'Zuccalmaggio') was studied. Cultivars 'Bijeli fler', ‘Crvena jesenska rebrača’ ‘Paulaner weinapfel’ and ‘Winter banana’ had significantly highest fruit mass, and 'Carević', 'Čelenka', 'Paradija' and 'Zuccalmaggio' the lowest. Cultivar 'Bijeli fler' had significantly the highest fruit height and cultivar 'Čelenka' the smallest. Cultivar 'Perovnjača' had significantly the widest fruits, a cultivar 'Zuccalmaggio' the narrowest. Cultivar 'Paradija' had significantly the highest fruit shape index and cultivar ''Perovnjača' the smallest. Among red-colored cultivars, cultivars 'Carević' and 'Crvena jesenska rebrača' had significantly higher L and a - values, while cultivar 'Čelenka' had significantly higher Chroma and Hue angle. Hue angle in this cultivar was 72 % higher than in cultivar 'Crvena jesenska rebrača' and 51 % higher than in cultivar 'Carević', showing nice and intensive red coloration of this cultivar. Among yellow-colored cultivars, cultivar 'Winter Banana' had significantly the highest L – value. There were no significant difference in a- value among cultivars 'Bel Fleur', 'Paradija', and 'Zuccalmagio' which had the highest values. Cultivar 'Paulaner Weinapfel' had the highest b- value, and there were no significant differences among cultivars in Hue angle. The highest firmness had cultivar 'Zuccalmaggio' and 'Paulaner Weinapfel' the smallest. Cultivars ' Crvena jesenska rebrača ', had significantly highest SSC and cultivar Perovnjača the smallest. Cultivar 'Perovnjača' had significantly highest TA, and there was significant difference compared cultivar 'Čelenka'. Cultivars 'Crvena jesenska rebrača', 'Paradija', 'Winter Banana', 'Paulaner Weinapfel' and 'Zuccalmagio' had significantly lowest TA and there was no statistical difference among these cultivars. Cultivar 'Crvena jesenska rebrača' had significantly highest SSC : TA ratio, and cultivar 'Perovnjača' the lowest. The main disadvantage of these cultivars was small fruit size. Before reintroduction of these cultivars into production, it is necessary to evaluate improving their fruit size by pruning, fertilizing and thinning.

Malus x domestica Borkh.; fruit quality; conservation; pomology; biodiversity

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