Vol 33 No 3 (2019)
Articles

Influence of two training systems on growth, yield and fruit attributes of four apple cultivars grafted onto ‘M.9’ rootstock

Ahmad Dadashpour
Department of Horticulture, University College of Agriculture and Natural Resources, University of Tehran
A.R. Talaie
Department of Horticulture, University College of Agriculture and Natural Resources, University of Tehran
M.A. Askari-Sarcheshmeh
Department of Horticulture, University College of Agriculture and Natural Resources, University of Tehran
A. Gharaghani
Department of Horticulture, University College of Agriculture and Natural Resources, University of Tehran
Published October 29, 2019
Keywords
  • Y-system,
  • intensive planting,
  • V-system
How to Cite
Dadashpour, A., Talaie, A., Askari-Sarcheshmeh, M., & Gharaghani, A. (2019). Influence of two training systems on growth, yield and fruit attributes of four apple cultivars grafted onto ‘M.9’ rootstock. Advances in Horticultural Science, 33(3), 313-320. https://doi.org/10.13128/ahs-23353

Abstract

This research was carried out to compare several attributes pertaining to the growth, fruit and yield of four apple cultivars, i.e. ‘Golab-kohans’, ‘Fuji’, ‘Starking’ and ‘Delbar estival’. These cultivars were grafted onto M.9 rootstocks trained into ‘Guttingen V-slender-spindle (or V-system) and ‘Geneva Y-trellis (or Y-system) systems. Compared to the Y-system, it was observed that the V-system caused the trees to yield more fruits, dry matter, ash and total soluble solids (TSS). In contrast, the Y-system caused the trees to have broader trunk cross sectional areas (TCSA), along with higher yield, fruit weight, fruit diameter, fruit length and fruit firmness, compared to trees trained with the V-system. In summary, these results showed that both systems can be employed as promising approaches, but the ‘Y-system’ appears to be more productive than the ‘V-system’. In addition, among the studied cultivars, it seems that the ‘Delbar estival’ and ‘Fuji’ were more adaptive to these intensive training systems, especially when considering the fruit traits.

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