An Evaluation of Selected Cultivars, Rootstocks and Hardy Interstocks
DOI:
https://doi.org/10.71318/apom.1975.29.2.26Abstract
Since most of Ohio's apple crop is sold for fresh consumption, the performance of new cultivars on various rootstocks must be continually evaluated to insure the greatest possible cropping efficiency. A study was established in 1964 at the Mahoning County Branch of the Ohio Agricultural Research and Development Center to evaluate the response of various cultivars on selected clonal rootstocks with and without hardy intermediate stocks. Several cultivars were propagated on 'M.2' and 'M.7' (Tables 1-4). Some were also top-worked on interstems of 'Hibernal', 'Kulon Kitaika' and 'Columbia' propagated on 'M.7'. The top-working was accomplished over a 2-3 year period with 3-5 scaffold limbs per tree budded to the cultivar. The trees were spaced 22.5' x 25' and the cultivar/rootstock combinations planted at random. The orchard received standard cultural practices and the trees were trained to a central leader without the use of limb spreaders.
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