USE OF MYROBALAN SPECIES (PRUNUS CERASIFERA) AS ROOTSTOCKS FOR ALMOND AND PEACH

In 1980, one of the objectives of the INRA peach rootstock breeding programme was to find genotypes adapted to heavy and poorly drained soils, by using some graft-compatible clones of myrabalan plum.
In 1985, an almond rootstock trial was established to compare the behaviour of two plum clones, P2980 and Myrabi, and a plum-almond hybrid P3655, with the standard GF677 (peach × almond). In 2000, a new rootstock trial was planted with the clones P2980 and P3655, and a plum x peach hybrid ZH82 grafted with a peach cultivar.
After fifteen years of observations, almond kernel yield of the trees grafted on the three plum rootstocks was not greater than the control GF677. The hybrid P3655 had a higher induced vigour and kernel yield than the parental plum rootstock Myrabi.
The results were similar in the peach rootstock trial.
These plum rootstocks used for peach trees reduce too much the vigour as well as yield.
The most vigorous, the plum-almond hybrid P3655, is susceptible to crown-gall and to bacterial canker.

XI Eucarpia Symposium on Fruit Breeding and Genetics

H. Duval, V. Signoret, R. Joly

Prunus persica, Prunus dulcis, graft-compatibility, induced vigour, stone fruit

https://doi.org/10.17660/ActaHortic.2004.663.179