ISHS Acta Horticulturae 903: IX International Symposium on Integrating Canopy, Rootstock and Environmental Physiology in Orchard Systems
HYBRIDIZING 'MCINTOSH WIJCIK' AND HEAT-TOLERANT APPLE CULTIVARS TO DEVELOP PRECOCIOUS SEEDLING TREES WITH IMPROVED TREE ARCHITECTURE |
| Authors: | J.M. Harshman, C.S. Walsh, J. Daberkow, K. Sparks, M.J. Newell, G.R. Welsh |
| Keywords: | Malus × domestica, dwarfing, spur type, columnar growth habit |
| DOI: | 10.17660/ActaHortic.2011.903.23 |
| Abstract:
This project began in 1991 with a cross between ‘McIntosh Wijcik’ and ‘Gala’ apples in an effort to develop a new apple cultivar that was well-suited to the Mid-Atlantic’s hot and humid growing season. The goal was to create a grower friendly cultivar that was dwarfing which would not require labor intensive methods of budding, pruning, and branch angle manipulation. A second cross made in 1999 between the ‘CompactGalaMac’ (CGMx) progeny of the 1991 cross and four commercial cultivars yielded progeny which had compact phenotype; field tolerance to diseases and pests; precocity and productivity; heat tolerance, fruit firmness and lack of preharvest drop typical of ‘Gala’; fruit taste attributes from both ‘Pink Lady’ and ‘Fuji’. These trees could potentially be grown on their own roots, avoiding the problems that accompany size-controlling rootstocks. | |
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