Volume 56 Number 2 Article 18
Year 2002 Month 4
Title: Impact of Apple Rootstock/Cultivar on Processing Market Profitability
Authors: J.K. Harper, R.M. Crassweller and D.E. Smith
Abstract:
Four apple cultivars suitable for processing ('York Imperial', 'Rome Beauty', 'Stayman', and
'Smoothee Golden Delicious') and four rootstocks (M.26 EMLA, M.9 EMLA, O.3 and B.9) used in a
ten-year experiment at Rock Springs, PA were evaluated for relative profitability.
Based on cash flow
measures, 'Rome Beauty' out performed the other three cultivars by a wide margin because of early
yields of large sized fruit.
M.26 EMLA was found to be the best rootstock for 'Rome Beauty' because
of its high expected cash flow and low variability of income. 0.3 was found to be the best rootstock for
'York Imperial', 'Stayman', and 'Smoothee Golden Delicious' based on the same measures.
B.9 was
found to have the lowest average cash flow and highest-income variability for all four cultivars at the
experiment's density of 961 trees/ha.
However, at higher densities which would be possible given tree
cross sectional area measurement, B.9 was found to be the best rootstock in terms of cash flow for 'York
Imperial', 'Rome Beauty', and 'Smoothee Golden Delicious', while 0.3 remained the best rootstock for
'Stayman'. To overcome the cash flow differential between 'Rome Beauty' and the other cultivars,
prices would need to be 23-94% higher depending on the rootstock used.
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