ISHS Acta Horticulturae 410: II International Cherry Symposium
INFLUENCE OF DWARFING CHERRY ROOTSTOCKS ON FRUIT PRODUCTION |
| Authors: | M. Edin, A. Garcin, J. Lichou, J.M. Jourdain |
| Abstract:
Three cherry rootstocks, Mazzard F12/1, Maxma Delbard® 14, and Tabel® Edabriz, were studied with 'Burlat' and 'Van' scions at two locations in southeastern France (Valence and Nîmes) for 10 years. The tree size and cropping characteristics were measured on 'Burlat'. Yield components on one- to five-year-old wood (number of spurs, flowers and fruit per meter, fruit set and average fruit weight) were studied. Tabel® Edabriz is a dwarfing rootstock (canopy volume ranging from 20 to 40% of that of F12/1) which comes into production early (3–4 years) and has a very high yield index. Fruit crop is very high on 2-year-old spurs. Maxma Delbard® 14 is a semi-dwarfing rootstock which bears fruit earlier than Mazzard F12–1 (4–5 years), and has a high yield index. Data analysis is showing that when the yield index of such rootstocks is too high, the fruit size and annual shoot growth strongly decrease. In order to maintain good cherry size, it is important to get sufficient shoot growth and adapt pruning techniques. | |
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