Tag Archives: P. avium

583-588 H. Jänes, P. Ardel, K. Kahu, K. Kelt and A. Kikas
Some biological properties and fruit quality parameters of new sweet cherry cultivars and perspective selections
Abstract |

Some biological properties and fruit quality parameters of new sweet cherry cultivars and perspective selections

H. Jänes, P. Ardel, K. Kahu, K. Kelt and A. Kikas

Polli Horticultural Research Centre, Institute of Agricultural and EnvironmentalSciences, Estonian University of Life Sciences, 69108 Karksi–Nuia, Estonia;e-mail: pille.ardel@pma.agri.ee

Abstract:

Twelve Estonian sweet cherry cultivars: ‘Anu’, ‘Arthur’ (control), ‘Elle’, ‘Ene’, ‘Irma’, ‘Kaspar’, ‘Mupi’, ‘Tontu’, ‘Elo’, ‘Jaago’, ‘Taki’, ‘Tiki’ and two selections: Polli 2–1 and Polli 4–13 as well as two introduced cultivars ‘Iputj’ (Russia) and ‘Jurgita’ (Lithuania) were evaluated for yield, ripening time, fruit weight and biochemical characteristics during 2007–2009 at the Polli Horticultural Research Centre. Results showed that the earliest ripening among the all studied genotypes was ‘Elo’ (16.06), while the latest one was Polli 2–1 (29.07). Average of the three years yields ranged from 6.0 kg per tree for cultivar ‘Jurgita’ to 20.1 kg per tree for cultivar ‘Arthur’. The largest fruits showed cultivars ‘Iputj’ (6.5 g) and ‘Jurgita’ (6.0 g), followed by ‘Arthur’, ‘Anu’ and ‘Mupi’ while the smallest fruits showed ‘Elo’ (3.2 g). The average °Brix value in fruit juice varied by the genotypes from 14.6 (‘Tiki’) to 19.6 (‘Anu’), average of all the genotypes was 17.1. The average total acids content ranged from 0.50% in ‘Iputj’ to 0.75% in ‘Ene’ while the total sugar content ranged from 7.7% in ‘Jurgita’ to 11.2% in ‘Arthur’. The ascorbic acid content ranged from 13.8 mg 100 g-1 in ‘Jaago’ to 24.8 mg 100 g-1 in ‘Anu’. The sugar:acid ratio was considerably high in ‘Iputj’, ‘Kaspar’, ‘Arthur’, ‘Anu’ and ‘Mupi’ (from 17.9 to 20.3). The most attractive were fruits of the cultivars ‘Iputj’, ‘Jurgita’, ‘Mupi’ and ‘Arthur’ (from 4.7 to 4.8 points).

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