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Covington O'Henry Japanese
A favorite for mashingor roasting, theCovington has rosecolored skin andsupersweet orange
flesh. Eat it whole withyour favorite toppingsor cut into wedges andbake as a side dish.
The OHenry has apale copper skin,almost like a potato,but dont be fooled.
This taters whiteflesh is sweet, creamyand ideal for soupsand stews.
Japanese sweetpotatoes have redskin and dry, whiteflesh. Roast these up
with a few of yourfavorite root veggiesfor a colorful sidedish.
Because sweet potatoes are vegetatively propagated and because
uniformity in appearance of roots is essential, it is important to
choose a variety that will suit your soil type, market requirementsand weather conditions. It is advisable to plant at least two varieties
each year because no single variety performs best on all soil types
and under all climatic conditions. Below is a comparative table to help
you with your choice.
Variety
(Origin
Date)
Foliage SkinFles
hYield
Disease&Insect
Resistance
FloodDam
age
OtherWea
knesses
OtherStren
gths
Beaure
gard
(LA,
1987)
Green
heartshape
d leaves,
blooms
prolific
RoseOran
ge
Veryg
ood
White grub,
soilpox
Resistance,
roots may
be
misshapen
Susceptibleto root-
knot,
nematodes;
bacterial
soft rot;
slow
sprouting
Stores well,
high % No.
1 roots
Herna
ndez
(LA,
1992)
Green
arrow-
shaped
leaves,
purple
Burnt
Orange
Dee
p
Oran
ge
Good
Root-knot, Soil
Pox, Fusarium
Wilt
Wet soil
may result
in raised
lenticels or
black
Late,
sporadic
sprouting,
black flecks
on skin.
Veryuniform
shape
http://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/Japanese.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/O-Henry.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/Covington.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/Japanese.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/O-Henry.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/Covington.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/Japanese.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/O-Henry.jpghttp://www.ncsweetpotatoes.com/wp-content/uploads/2011/07/Covington.jpg -
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stems,
faciation
pimples on
skin
Slow
sprouting,
poor taste.
Susceptible
to blister;
boron
application
may be
necessary.
Jewel
(NC,
1970)
Green
stems,
bushy
Copper
Dee
p
Oran
ge
Veryg
ood
Root-knot,
Internal CorkSusceptible
Mutations,
Soil Pox,
Cracking
with
variable soil
moisture
Storage life,
shapes high
% No. 1
roots
Carolin
a Ruby
(NC
1988)
Green
heart
shaped
leaves with
purple
veins
Dark
Red
toPurpl
e Red
Dark
Oran
ge
Veryg
ood
Fusarium Wilt,
moderate soil rot,
moderate to flea
beetle
Wet soil
may result
in cracking
and blisters
on skin
Susceptible
to root-knot
nematodes,
white grub
& wireworm
Stores OK
Excellent
baking
quality
Porto
Rico
198
(NC
1966)
Deep
Purple
Stems and
Veins
Rose-
pink
Oran
ge
Mott
led
Avera
geNone
Moderatere
sistance
Susceptible
to major
diseases/cra
cking
Bakingqualit
y
Cordne
r (TX
1983)
Green
stemsCopper
Medi
um
Oran
ge
Veryg
oodRoot-knot Susceptible
Susceptible
topox
Earliness,
goodplantpr
oduction
White
Delight
(GA)
Green
heartshape
dleaves
Purplis
hpink
Whit
e
Veryg
ood
Fusarium
wiltRoot-knotSusceptible
Damp soil
can cause
high % rot
tastes
goodstoresw
ell
Coving
ton
NC98-608
Rose
Smoot
h
Oran
ge
Veryg
ood
Russet crack,
Southern Root
Knot, Nematode
Covington Sweet PotatoesJan 4, 2012 at 12:17 pm|
With 972 million pounds of production in 2010, North Carolina is the dominant producer of
sweet potatoes in the United States. The sweet potato was named our State Vegetable in
1995, and NC farmers have continued to advance its production through the years,
accounting for roughly 40% of sweet potato production in the US. One recent advance by
the Sweet Potato in North Carolina was the introduction of the Covington Sweet Potato.
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For years, the dominant sweet potato variety in North Carolina, and most of the country
was the Beauregard Sweet Potato. Beauregards produce good yields, are considered quite
sweet, and are relatively disease and pest resistant. Recently, however, a new variety of
Sweet Potato has been gaining favor with North Carolina farmers, the Covington Sweet
Potato. The Covington variety was developed by NC State University in the late 90's to
early 2000's, and was released by the North Carolina Agricultural Research Service in
2005. The variety was named after a popular and esteemed sweet potato scientist at the
university, Henry M. Covington. Since its release in 2005, local growers have been
devoting more and more land to its cultivation. The primary benefit of Covington Sweet
Potatoes over other varieties is that they tend to grow more uniform in shape, which makes
them much more marketable to retailers and food service establishments. Covingtons are
also less likely to grow into the "jumbo" grade, which are too large for many cooking
applications, making them difficult for farmers to sell. Many growers also feel that
Covingtons grow and produce better than other sweet potato varieties. Many feel that they
end up with less pest damage, and that their ultimate yields after grading are better with the
Covington variety. While the data is too limited to tell for sure, overall sweet potato yields as
measured and recorded by the USDA have increased noticeably in major Covington
producing states like North Carolina and California, since the release of the variety in
2005.
North Carolina Sweet Potato Production:
Year.........Production....Yield....................Percent of...
................(lbs.).............(lbs/1,000 ac)......Total US......
1999........377 mil..........13,000.................30.8 %.......
2000........555...............15,000.................40.3...........
2001........558...............15,500.................38.4...........
2002........481...............13,000.................37.6...........
2003........588...............14,000.................37.0...........
2004........688...............16,000.................42.7...........
2005........595...............17,000.................37.8...........
2006........702...............18,000.................42.8...........
2007........667...............15,500.................36.8...........2008........874...............19,000.................47.4...........
2009........920...............20,000.................47.3...........
2010........972...............18,000.................40.8...........
Source: USDA, NationalAgriculturalStatisticsService
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