CULTURE OF BARTLETT ON ITS OWN ROOTS COMPARAISONS WITH QUINCE AND FRENCH SEEDLINGS ROOTSTOCKS

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.

III International Symposium on Pear Growing

B. THIBAULT, L. HERMANN

https://doi.org/10.17660/ActaHortic.1982.124.2