Articles
Fruit cracking and fruit firmness of 15 sweet cherry cultivars: a two-year study in Zadar County
Article number
1449_57
Pages
423 – 428
Language
English
Abstract
Cultivation of sweet cherry (Prunus avium L.) is spread across the Republic of Croatia, but its importance is greater in the Mediterranean region, especially for early ripening cultivars.
Extreme weather conditions during flowering and ripening negatively affect the commercial quality of fruits.
The aim of this work was to determine the incidence of sweet cherry fruit cracking and fruit firmness and to connect them with the rainfall during fruit development.
The research was conducted during 2019 and 2020 in the cherry orchard in Ninski Stanovi, Zadar County, Croatia.
The fruits were harvested at the time of commercial maturity.
Fruit cracking index (CI) and fruit firmness (FF) of 15 cherry cultivars (‘Burlat’, ‘Cristalina’, ‘Early Burlat’, ‘Ferrovia’, ‘Germersdorf’, ‘Giorgia’, ‘Grace Star’, ‘Lapins’, ‘Regina’, ‘Samba’, ‘Summit’, ‘Sunburst’, ‘Sweet Early’, ‘Sweet Valina’ and ‘Volovsko srce’) were evaluated.
Statistical analyses were conducted via one-way analysis of variance and Tukey post hoc test.
Pearson correlation coefficient between CI and FF of all cultivars and both years was also carried out.
Significant differences were found for CI and FF between the cultivars.
Furthermore, the influence of the year on the measured parameters can also be seen. ‘Grace Star’ has shown the lowest CI value in 2019 (2.80), while ‘Sweet Early’ has shown the highest CI (52.4) in 2020. FF ranged from 1.09 kg cm‑2 in ‘Early Burlat’ in 2019 to 2.82 kg cm-2 in ‘Volovsko srce’ in the same year.
There is a moderate negative correlation between the CI and FF. The obtained results are useful for the selection and valorization of sweet cherry cultivars for the Mediterranean growing area in the Republic of Croatia.
The conducted research contributes to the assessment of extreme weather conditions risk, mostly precipitation, which may affect cracking and firmness of cherry fruits.
Extreme weather conditions during flowering and ripening negatively affect the commercial quality of fruits.
The aim of this work was to determine the incidence of sweet cherry fruit cracking and fruit firmness and to connect them with the rainfall during fruit development.
The research was conducted during 2019 and 2020 in the cherry orchard in Ninski Stanovi, Zadar County, Croatia.
The fruits were harvested at the time of commercial maturity.
Fruit cracking index (CI) and fruit firmness (FF) of 15 cherry cultivars (‘Burlat’, ‘Cristalina’, ‘Early Burlat’, ‘Ferrovia’, ‘Germersdorf’, ‘Giorgia’, ‘Grace Star’, ‘Lapins’, ‘Regina’, ‘Samba’, ‘Summit’, ‘Sunburst’, ‘Sweet Early’, ‘Sweet Valina’ and ‘Volovsko srce’) were evaluated.
Statistical analyses were conducted via one-way analysis of variance and Tukey post hoc test.
Pearson correlation coefficient between CI and FF of all cultivars and both years was also carried out.
Significant differences were found for CI and FF between the cultivars.
Furthermore, the influence of the year on the measured parameters can also be seen. ‘Grace Star’ has shown the lowest CI value in 2019 (2.80), while ‘Sweet Early’ has shown the highest CI (52.4) in 2020. FF ranged from 1.09 kg cm‑2 in ‘Early Burlat’ in 2019 to 2.82 kg cm-2 in ‘Volovsko srce’ in the same year.
There is a moderate negative correlation between the CI and FF. The obtained results are useful for the selection and valorization of sweet cherry cultivars for the Mediterranean growing area in the Republic of Croatia.
The conducted research contributes to the assessment of extreme weather conditions risk, mostly precipitation, which may affect cracking and firmness of cherry fruits.
Publication
Authors
. Marcelić, . Kolega, G. Fruk, M. Petrić, M. Zorica, T. Kos
Keywords
cracking index, harvest date, precipitation, Prunus avium
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