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APPLE ROOTSTOCKS
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SIZE CLASS 1-2 |
M.27 | |||
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Pedigree |
M.13 x M.9, 1929 |
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Precocity |
Very precocious | |||
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Productivity |
High, under ideal conditions | |||
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Scion Fruit Size |
Fruit size can be small with M.27 | |||
| Scion Fruit Quality | Generally fine | |||
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Anchorage |
Poor, support required | |||
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Fire blight |
Highly susceptible | |||
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Crown & Root Rots |
Considered resistant | |||
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Woolly Apple Aphid |
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Powdery Mildew |
Moderately susceptible | |||
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Hardiness (Midwinter) |
Questionable | |||
| Bud Break | ||||
| Leaf Fall | ||||
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Suckering |
Light | |||
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Burrknots |
Light | |||
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Stoolbed Performance |
Good | |||
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Virus hypersensitivities |
Tomato Ringspot Virus | |||
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Experience |
Well tested | |||
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Sources |
Treco, Meadow Lake | |||
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Strains |
EMLA - virus free clone | |||
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Observations, suspicions, history |
M.27 can be a good choice for use in high density plantings by experienced growers on sites with high fertility and vigor when using large fruited, vigorous scion varieties. Other uses are not recommended due to extremely low vigor of the rootstock. M.27 is susceptible to simazine in the nursery. Irrigation is always recommended for M.27 orchards. |
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