Effects of Different Pre-sized Rooting Blocks and IBA Concentrations on the Rooting of Ramsey Grapevine Rootstock Cuttings

Abstract

Objective: Ramsey (Vitis champinii) is a grapevine rootstock that preferred sandy soils and it has high resistance to phylloxera and nematodes. But rooting of one year-old wood cuttings of this rootstock is quite low. In this study, determination of the effects of two different pre-sized rooting blocks (paper pot and phenolic foam) injected with different IBA concentrations on rooting of Ramsey rootstock cuttings were aimed.Material and Methods: In this study, for supporting the exogenous auxin treatment, IBA in different concentrations (0-50 ppm) was applied to two different pre-sized rooting media blocks (paper pot and phenolic foam) in which Ramsey cuttings be rooted. IBA solutions were injected into rooting blocks before planting. Cuttings were also pretreated with 2000 ppm IBA as quick dip. Cuttings were evaluated after 45 days in relation with root and shoot quality parameters.Results: The effects of rooting blocks on root number, root length, shoot length and dry root weight were found statistically significant. Apart from rooting percentage, other quality parameters of cuttings that planted in paper pots were higher than that planted in phenolic foam. The highest rooting percentage (43.2 %) was obtained from cuttings that planted in phenolic foam, injected in 30 ppm IBA.Conclusion: In this study, it was revealed that paper pot could be a proper medium choice in grapevine nursery tree propagation.