Comparison of Five New Sweet Cherry Cultivars Bred in Romania, with their Parental Forms

Abstract

The studies were performed for four consecutive years (2016–2019) at the Fruit Growing Research Station (North-East part of Romania), using eleven sweet cherry genotypes as research material. Five of them are new cherry cultivars – ‘Cătălina’, ‘Andreiaş’, ‘Maria’, ‘George’, and ‘Margonia’ – obtained by means of controlled hybridization or open pollination, and six of them are their progenitors (‘Van’, ‘Boambe de Cotnari’, ‘Stella’, ‘Fromm’, ‘Ciliegia di Ottobre’, and the ‘HC 27/4’ hybrid). The experiment compared the traits of new cultivars with those of their progenitors. The following traits were evaluated: tree vigor, frost damage, the phenological stages, and the physical and chemical traits of the fruit. The highest values concerning the fruit's weight have been recorded for ‘Andreiaş’ (10.0 g) and ‘Maria’ (7.6 g), the content of soluble substance was between 16.6 and 19.5°Brix, the titratable acidity was between 0.413 and 0.675 mg malic acid·100 mL−1 juice, and the total content of polyphenols was recorded with values between 268.00 and 488.75 mg GAE·100 mL−1 of fresh juice. The new cultivars have mostly superior traits, especially frost damages, productivity, fruit quality, and fruit's cracking percentage compared with their parental genotypes.

Untitled

“…It was found that the fruits of the sweet cherry varieties Isabella and Tugarka had an average mass of more than 7.5 g, and the Burlat variety -less than 5 g. E. Iurea et al (2019) determined that Elaiaşi (8.9 g) and Croma (9.4 g) varieties had the highest fruit mass in Romania. Research by M. Corneanu et al (2021) in the conditions of Romania recorded the highest index of cherry fruit mass for the Andreiaş variety (10.0 g).…”

Untitled

“…It was identified that the fruits of the cherry varieties Isabella and Tugarka had an average weight of more than 7.5 g, and the variety Burlat -less than 5 g. The study by (Iurea et al, 2019) in Romania determined that the largest fruit mass was identified in the Elaiaşi (8.9 g) and Croma (9.4 g) varieties. The highest mass index of the cherry fruit (10.0 g) was recorded in the Andreiaş variety by the Romanian researcher M. Corneanu et al (2021). In the conditions of India according to K.M.…”

The Adaptability of Some Sweet Cherry Cutivars With High Agro-Productive Potential in the Climatic Conditions in Iasi County

“…Four of them are cultivars created abroad: 'Regina', 'Kordia' are European cultivars, and 'Hudson', 'New Star' are native to North America. 'Maria' and 'Golia' are obtained through controlled hybridization in the breeding program of RSFG Iași (Corneanu et al, 2021).…”