Early Performance of MAC Apple Rootstocks in Ohio
DOI:
https://doi.org/10.71318/apom.1989.43.3.102Abstract
In 1977 trees of ‘Empire’ and ‘Golden Delicious’ were established on selected rootstocks of the Michigan Apple Clone series at a site in southern Ohio. Significant tree loss occurred with trees on M.26. The rootstocks MAC 4, MAC 16 and MAC 24 produced standard sized trees with relatively poor precocity and productive efficiency. MAC 1 produced trees similar in size to M.26 and M.7, but lacked precocity and productivity compared to M.26. Trees on MAC 9 (MARK) were not as productive or efficient as trees on M.9 and M.26 and were similar in size to these rootstocks.
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