EVALUATION OF EUROPEAN PLUM ROOTSTOCKS TO TWO PLUM CULTIVARS IN LATVIA

The performance of eight generatively propagated rootstocks (‘St-Julien INRA 2’, ‘St-Julien d’Orléans’, ‘St-Julien Noir’, ‘Brompton’, ‘Wangenheims Cwetche’, ‘St-Julien Wädenswill’, ‘Myrobalana’ and Caucasian plum (a local rootstock)) and 8 vegetatively propagated rootstocks (‘St-Julien A’, ‘Brompton’, ‘Ackermann’, ‘Pixy’, ‘Hamyra’, ‘P. Marianna GF8/1’, ‘G5/22’ and ‘GF655/2’) grafted with the European plum cultivar ‘Victoria’ and diploid plum cultivar ‘Kometa Kubanskaya’ were evaluated in a field trial in Latvia.
The winter of 2002/03 had low temperatures of –36°C at snow level in the orchard.
The degree of frost damage, general tree health and tree growth parameters were observed in order to evaluate tree winter hardiness and renovation ability.
The rootstocks had some influence on the tree winter hardiness.
All of the European rootstocks had similar or better winter hardiness than the local rootstock Caucasian plum.

VIII International Symposium on Canopy, Rootstocks and Environmental Physiology in Orchard Systems

J. Lepsis, U. Dekens

Prunus domestica, Prunus cerasifera, winter hardiness, cultivars

https://doi.org/10.17660/ActaHortic.2007.732.38