Black Shank Resistant Burley
Varieties
Black
shank is a soil-borne disease that can be devastating to tobacco. In
some years it can seriously lower yields, especially where disease
populations are high and non-resistant varieties are used. The first
symptom usually noticeable is wilting. While plants sometimes
recover during the night, they wilt again the following day, and
leaves will eventually turn yellow and die. Larger roots of plants
may turn black, and stalk may turn black near soil-level. Another
symptom that occurs in advanced stages of black shank is called
disking. Tissue inside stalks (pith) often dries, turns brown or
black and separates into disks, or plate-like structures. One
management practice for controlling black shank is the use of
resistant varieties. F.W. Rickard Seeds, Inc. offers several
varieties with black shank resistance. NOTE: Resistance does not
equal immunity.
Click
here to see chart of Diseases & Agronomics |
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KT 200LC |
A recent release from the joint tobacco
breeding program at the Universities of Tennessee and Kentucky with
level 6 resistance to both races of black shank. It also has
resistance to black root rot, wildfire, tobacco mosaic virus, and
the virus complex. KT 200LC is a semi-erect, late-maturing hybrid
with high yield potential. Because of its late maturity, KT 200LC
should be topped early and allowed to stand 5 weeks before harvest
to optimize its curing potential. |
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NC 5 |
A hybrid release from NC State University with an
excellent disease resistance package. NC 5 is a medium-late
maturity, high-yielding black shank resistant variety with good leaf
quality. It has very high resistance to race 0 black shank and low
resistance to race 1 black shank. It has high resistance to black
root rot and resistance to tobacco mosaic virus, wildfire, and the
virus complex. |
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TN 90 |
Has level 4 resistance to race 0 and race 1 black
shank. Resistance to black root rot and wildfire, plus tobacco
mosaic, vein mottling and etch viruses. It has consistent
yielding ability along with the smallest stalk of any black shank
resistant variety. |
|
R 630 |
An early maturity hybrid with level 4 resistance
to Race 0 and Race 1 black shank. High resistance to black root rot,
wildfire, and tobacco mosaic virus. Resistance to etch and vein
mottling virus. Has excellent yield potential and leaf
quality. |
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NC 6 |
A hybrid release from North Carolina State
University. NC 6 is a medium-late maturity, high-yielding variety
with good leaf quality. It has very high resistance to race 0 black
shank and low resistance to race 1 black shank. It also has
resistance to black root rot, tobacco mosaic virus, wildfire, the
virus complex and races 1 and 3 of the Southern root knot
nematode. |
|
msKY 14 x L8 |
Has high mosaic and wildfire resistance, medium
resistance to black root rot, fusarium wilt, and high resistance to
race 0 blank shank. It is susceptible to race 1 black shank. It has
consistent yield and excellent color. It needs to be topped early
for sucker control. |
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R 610 |
Has level 4 resistance to both race 0 and race 1
black shank, medium black root rot resistance and low to medium
Fusarium wilt resistance. R 610 has very large, closely spaced
leaves and excellent quality. |
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TN 97LC |
A high-yielding hybrid with good black shank
resistance, resistance to tobacco vein mottling, tobacco etch and
mosaic virus. Also has high black root rot and wildfire
resistance. |
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TN 86 |
A large, high-yielding variety with level 4
resistance to race 0 and race 1 black shank. High resistance to
black root rot, wildfire, vein mottling virus and medium resistance
to tobacco etch virus. It is a late-maturing variety. |
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KT 204LC |
A medium to late maturing variety that has
level 7 resistance to both races of black shank. The growth habit of
KT 204LC is semi-upright, similiar to TN90. KT 204LC produces cured
leaves that are medium to heavy bodied and tan to reddish-tan in
color under normal curing conditions. KT 204LC has significantly
better leaf color than KT 200LC and is comparable to the other
popular burley varieties. |
Please contact
us for information on other available Black Shank Resistant
varieties.
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