EVALUATION OF SOME PLUM ROOTSTOCKS AS ROOTSTOCK FOR APRICOT IN THE ORCHARD

The study was carried out at the Fruit growing Institute-Plovdiv, Specialized Laboratory on apricot,, Silistra during the period 1985-1995. The test plantation was made in the 1980 in areas, which were not irrigated.
The behavior of trees from the apricot cultivar ‘Hungarian apricot’, grafted on the seed rootstocks ‘Uhrepka’/P. insititia L./, ‘Green Gage CD-4’ /P. domestica L. / and vegetative rootstocks ‘Damas GF 1869’, ‘Mariana GF 8-1’ and ‘GF 655/2’ /P. insititia L./ was investigated.
Rootstocks ‘Dzhanka 4’ /P. cerasifera L./ and ‘Alfred’ /P. vulgaris L./ were used as a standard.
The seedling ‘Green Gage CD-4’ and vegetative rootstocks ‘Damas GF 1869’and ‘GF 655/2’ induced slow growth of the trees.
The vegetative rootstocks ‘Mariana GF 8-1’and the seed rootstock ‘Dzhanka 4’ induced intensive growth of the trees.
In general, a higher yield was obtained from the trees, grafted on the rootstock ‘Mariana GF 8-1’. However the combination with ‘Damas GF 1869’ and ‘Greengage CD-4’ as rootstocks provided the highest yield per m3 of the tree crown volume.
The tree longevity depended on the rootstocks used.
The trees with ‘Mariana GF 8-1’ rootstock did not die at all, while the biggest number of dead trees were on ‘Uhrepka’ rootstock.

VII International Symposium on Plum and Prune Genetics, Breeding and Pomology

M. Dimitrova

plum, rootstock, apricot, cultivar, trial, growth, yield

https://doi.org/10.17660/ActaHortic.2002.577.53