Performance of 'Cortland' and 'McIntosh' on Fourteen Rootstocks in Quebec
DOI:
https://doi.org/10.71318/apom.1992.46.2.114Abstract
‘Cortland’, ‘Imperial McIntosh’ and ‘Macspur McIntosh’ were evaluated over a 10-year period on the following rootstocks: M.26 EMLA, M.4 EMLA, M.7 EMLA, ‘McIntosh’ seedling, MM.106, MM.111, Ottawa hybrid (OH)-3, Ottawa (Ott.) 3, Ott.5, Ott.7, Ott.8, Ott.11, Ott.12 and Malus robusta5. Scion cultivars on M.26 EMLA and Ott.3 were smaller than scion cultivars on all other rootstocks and tended to be more yield efficient than those on most other rootstocks. Root suckers were most prevalent on M.7 EMLA and Ott.8 rootstocks. Fruit size was largest on M.26 EMLA and generally smaller in ‘McIntosh’ than in ‘Cortland.’
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