Potential involvement of flavonoids in the rooting response of chestnut hybrid (Castanea crenata × Castanea sativa) clones
G. Osterc A B , M. Štefančič A , A. Solar A and F. Štampar AA University of Ljubljana, Biotechnical Faculty, Agronomy Department, Institute for Fruit Growing, Viticulture and Vegetable Growing, Jamnikarjeva 101, Ljubljana 1000, Slovenia.
B Corresponding author. Email: gregor.osterc@bf.uni-lj.si
Australian Journal of Experimental Agriculture 47(1) 96-102 https://doi.org/10.1071/EA05149
Submitted: 16 May 2005 Accepted: 4 April 2006 Published: 2 January 2007
Abstract
The involvement of different quercetins [quercetin-3-O-rhamnoside (quercitrin), quercetin-3-D-galactoside (hyperoside) and rutin] and catechins (catechin, catechol) in the rooting process of leafy cuttings was studied in two hybrid chestnut (Castanea crenata × Castanea sativa) clones, Maraval and Marsol. Both clones differed strongly in rooting results. The Maraval clone cuttings, which had a high rooting rate, contained, on average, higher amounts of all quercetins in different plant parts (leaves and basal cuttings) than the Marsol clone, which had a low rooting rate. There was a highly significant correlation between the quercetin contents of the cutting leaves and the rooting process (number of main roots). The catecechin contents of the cutting leaves did not show any correlation with the rooting process.
Additional keywords: biochemical markers, polyphenols.
Acknowledgements
This work is a part of the Programme Horticulture No. P4–0013–0481 granted by the Slovenian Ministry of Higher Education, Science and Technology.
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