ISHS Acta Horticulturae 124: III International Symposium on Pear Growing
CULTURE OF BARTLETT ON ITS OWN ROOTS COMPARAISONS WITH QUINCE AND FRENCH SEEDLINGS ROOTSTOCKS |
| Authors: | B. THIBAULT, L. HERMANN |
| DOI: | 10.17660/ActaHortic.1982.124.2 |
| Abstract:
In the winter 1965–1966, an orchard was planted with own-rooted BARTLETT obtained by softwood cuttings under mist system. It was a virused (Vein Yellow) strain P. 123. This same strain grafted on quince (Provence type C.85.1) and on French seedlings (Fieudière, a selection of Angers Station) was introduced in this trial for a comparison. The soil was a limoneous-clay kept fairly wet during summer. The trees were 2. 30 m apart on the row and 3 meters between the rows. They were trellissed. Each treatment included five replications of four trees. A second trial was undertaken with the same design. It compared this same strain P.123 grafted on Quince and on French seedlings with a virus free strain P.1469 grafted on the same rootstocks. A third trial compared own-rooted Bartlett P.123 with own-rooted Max Red Bartlett on the one hand and these two strains grafted on Quince, on the other hand. The registered date were : trunk girth -crop weight (kg)- productivity (ratio between cumulated yield until the last year, and the trunk girth on the next winter) and the grading of fruits : average weight and percent of the crop weight with fruit diameter over 60 mm. | |
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