ISHS Acta Horticulturae 667: IV International Cherry Symposium
SEASONAL CHANGES IN POLYPHENOLS OF 'LAPINS' SWEET CHERRY GRAFTED ON DIFFERENT ROOTSTOCKS |
| Authors: | V. Usenik, F. Štampar, N. Fajt |
| Keywords: | Prunus avium, leaves, phloem, metabolism, chlorogenic acid, rutin, catechin, p-coumaric acid, and eriodictyol 7-glucoside, F12/1, Gisela 5, Weiroot 158 |
| Abstract:
This study examined how cherry rootstock genotype affects the concentrations of polyphenol substances in the phloem of the scion shoots and leaves. The experiment utilized 'Lapins' sweet cherry trees grafted on three different rootstocks: F12/1, Gisela 5 and Weiroot 158. Samples were collected on 6 dates (14 April, 17 May, 13 June, 17 July, 17 August, 28 September) in 2000. The concentration and composition of polyphenol substances were determined by HPLC analysis. It was established that rootstocks differentially altered the concentrations of chlorogenic acid, rutin, catechin, p-coumaric acid, and eriodictyol 7-glucoside during the growth period. The concentrations of chlorogenic acid and rutin in 'Lapins' leaves were significantly lower on the rootstock F12/1 than on the rootstocks Gisela 5 and Weiroot 158. The differences in the catechin concentrations were significant only at the beginning and the end of the growth period. There were no indicative differences among the rootstocks in the concentrations of p-coumaric acid and eriodictyol 7-glucoside. | |
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