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A new interspecific vegetative rootstock for cherry studies in the nursery stage in interaction with six varieties

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Author(s): Gheorghe Mladin | Sergiu Ancu | Craisor Mazilu

Journal: Scientific Papers of the Research Institute for Fruit Growing Pitesti, Romania
ISSN 1584-2231

Volume: XXVI;
Start page: 139;
Date: 2010;
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Keywords: Rootstock | variety | softwood cuttings | orchards | budding

ABSTRACT
Studies were conducted at ICDP Pitesti-Maracineni, during 2008-2010, aiming to establish the propagation capacity by softwood cuttings of the interspecific hybrid 2000-OR-59 (IP-C7) and to outcome its interaction with any grafting combination of six varieties of sweet cherry, compared with IP-C4 vegetative rootstock. Referring to propagation by softwood cuttings of the new rootstock it was 90 % higher, significantly (without synthetic auxins treatment). Establishment in the field I of the nursery was 92.6 %, six percent more than the control, statistically assured by DL 5 %. Bud take, according to the variety was variable, ranged between 77,33 % (at budding with Stella variety) and 87,66 % (at budding the ‘Severin’ variety). The growth of the scions and quality at the point union have been influenced by the epibiont. The best results were recorded by budding of new rootstock with ‘Severin’, ‘Daria’, ‘Stella’ and ‘Van’ varieties. The root system of trees grafted on interspecific hybrid 2000-OR-59, was developed mainly in horizontal-oblique direction and less in depth, exploring the soil volume between 0,5 and 0,7 mc, with significantly differences from the control. Return in grafted trees was influenced by the varieties within the same rootstock and the rootstocks within the same variety, with values exceeding 75 % in the most varieties grafted on the interspecific hybrid 2000-OR-59, significantly superior to control rootstocks. At the end of the studies in the orchard, this new vegetative interspecific rootstock will be promoted as IP-C7.
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