Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 1
Written by Silvia NICOLAE, Mădălina BUTAC, Mihai CHIVU
In Romania, for plum species, the last registered vegetative rootstock was 'Mirodad 1’. The purpose of the research was to study the behavior of the 'Mirodad 1’ vegetative rootstock compared to the 'Saint Julien A’ rootstock at propagating by softwood cuttings, at planting and grafting in nursery conditions from the Southern part of Romania. In the nursery, the interaction of the two rootstocks with the plum varieties 'Tuleu gras’, 'Jojo’ and 'Romanța’ was evaluated. The indicators monitored were the rooting percentage of softwood cuttings, viable rootstocks remaining after planting and growth indicators of grafted trees (height, cross-section area of the trunk, number and length of shoots). The results of the propagation showed that the 'Mirodad 1’ rootstock has a significantly higher rooting percentage than the 'Saint Julien A’ rootstock. After grafting, the 'Mirodad 1’ rootstock induces the same vigor as the 'Saint Julien A’ rootstock to the 'Tuleu gras’ and 'Romanța’ cultivars. In the case of the 'Jojo’ cv., the 'Mirodad 1’ rootstock induces greater vigor than the 'Saint Julien A’ rootstock.
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