Articles
Rootstock and harvest season affect the chemical composition of plum
Article number
1449_58
Pages
429 – 436
Language
English
Abstract
Although Serbia is one of the world’s largest plum producers, the most commonly used plum rootstock is Myrobalan (Prunus cerasifera Ehrh.) seedlings, which are characterized by a number of disadvantages, represent.
Considering the intensification of plum production, this study was aimed to characterize the yield fruit quality of the plum cultivar ‘Čačanska Lepotica’, grafted on two medium vigorous rootstocks, Wavit and Weiwa, and two hypersensitive plum rootstocks, Docera 6 (medium vigor) and Dospina 235 (low vigor) during two years (2017-2018). According to the analyses of the primary metabolites, the harvest season effect was more pronounced than that of the rootstock.
Fruits harvested in 2017 had the best sugar and sugar to acid ratio values (94.0 g kg‑1 FW and 5.6), while fruits harvested in 2018 had a significantly higher phenols content (253.8 mg kg‑1 FW). The dominant phenolic compounds in plum fruits were phenolic acids and flavanols, while flavonols and anthocyanins were determined in lower concentrations.
The results demonstrate a significant influence of the rootstock on phenolic content.
All tested phenolic groups, were significantly higher in the fruits of ‘Čačanska Lepotica’ grafted on Docera 6 and Dospina 235 in both tested years, except for the content of flavonols and anthocyanins in combination with rootstocks Wavit and Weiwa in 2017. In order to improve the intensity of plum cultivation as well as the nutritional quality of fruits, the rootstock ‘Docera 6’ can be recommended for further expansion in agroecological conditions of southeastern Europe.
Considering the intensification of plum production, this study was aimed to characterize the yield fruit quality of the plum cultivar ‘Čačanska Lepotica’, grafted on two medium vigorous rootstocks, Wavit and Weiwa, and two hypersensitive plum rootstocks, Docera 6 (medium vigor) and Dospina 235 (low vigor) during two years (2017-2018). According to the analyses of the primary metabolites, the harvest season effect was more pronounced than that of the rootstock.
Fruits harvested in 2017 had the best sugar and sugar to acid ratio values (94.0 g kg‑1 FW and 5.6), while fruits harvested in 2018 had a significantly higher phenols content (253.8 mg kg‑1 FW). The dominant phenolic compounds in plum fruits were phenolic acids and flavanols, while flavonols and anthocyanins were determined in lower concentrations.
The results demonstrate a significant influence of the rootstock on phenolic content.
All tested phenolic groups, were significantly higher in the fruits of ‘Čačanska Lepotica’ grafted on Docera 6 and Dospina 235 in both tested years, except for the content of flavonols and anthocyanins in combination with rootstocks Wavit and Weiwa in 2017. In order to improve the intensity of plum cultivation as well as the nutritional quality of fruits, the rootstock ‘Docera 6’ can be recommended for further expansion in agroecological conditions of southeastern Europe.
Publication
Authors
J. Tomić, M. Peaković, B. Rilak, I. Gliić, N. Miloević, F. tampar, M. Mikulič-Petkovek, J. Jakopič
Keywords
Prunus domestica, rootstocks, sugars, organic acids, phenols
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