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SHEPODY:
CHARACTERISTICS
Shepody
was selected in New Brunswick, Canada, and released in 1980 by Agriculture
Canada (Young, Tarn and Davies. 1983. Amer Potato Jour 60:109-113).
Its primary use is an early-season French fry potato. It may also
be used for boiling and baking.
Shepody
(F69016) is a determinate variety whose vine is early to medium
maturing and is medium-sized. Due to its good frying quality and
early maturity, usually ready for harvest in August, its grown for
early fry processing and fries lighter than Russet Burbank. But,
its main weakness is a potentially low specific gravity. Its specific
gravity is very sensitive to amount and timing of nitrogen application.
High amount and late, during bulking, applications reduce starch
content, sometimes sufficiently do eliminate crop from processing.
Sugars are low from the field but increase in storage making it
unacceptable for frying. With respect to fresh market use, boiling
and baking, Shepody scores about the same as Kennebec in taste panels.
Summary
of Plant Characteristics
Purpose
-- frying (early season); boil and bake possible
Growth Type -- determinate
Maturity -- early to medium, shorter than Kennebec
Dormancy -- short
Vine -- medium, spreading
Leaves -- large
Flowers -- numerous, large, light violent with white tips
Eyes -- shallow to medium deep; well distributed
Tubers -- oblong to long, slightly flattened; smooth, thin,
lightly-netted skin (considered a long-white)
Set -- late-setting but bulk rapidly; may oversize
Specific Gravity -- low to medium; low end for frying
Sugar -- low increases in storage; good frier, lighter than
Russet Burbank
Stem End Discoloration -- sugar end is common defect
External Defects -- mis-shapes and over-sizes
Internal Defects -- resistant to hollow heart
Yields -- medium; in Canada, just less than Kennebec
Disease susceptibility -- susceptible to all viruses, early
and late blights, early dying and pink eye, and moderately so to
common scab
Disease tolerance -- tolerant to dry rot and wilt, stem canker,
and net necrosis
Herbicide - very susceptible to metribuzin injury
Other -- tolerant to heat stress; difficult to desiccate
prior to senescence
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