LD :J?o5!5 A1~1 F5B3 ;C/C/7 vPI ~pee,
(
Vi .. C
irg11113 • ooperative
Extension Tobacco
Flue-Cured Tobacco Variety Information for 1997
T.D. Reed, C.A. Wilkinson, J.L. Jones, and C.S. Johnson*
Seed of four new varieties will be available to tobacco producers in 1997. RG H4 and RG 81 met the chemical and physical standards estab-lished by the Regional Variety Evaluation Com-mittee in 1994. RG H61 and NC 71 met the chemical and physical standards in 1995. Growers are advised to plant only a limited acreage of any new variety until more information and experience is available from a wider range of soil and climatic conditions.
Three of the new varieties (RG H4, RG H61, and NC 71) are hybrids. These are the first commercially available flue-cured tobacco hybrid varieties. Hybrids are advantageous because characteristics from two parents can be combined into one variety in a short time. For example, a parent with high yield and quality and a low level of disease resistance can be crossed with another parent with a high level of disease resistance and poor yield and quality. The resulting hybrid may have a combination of characteristics that is more acceptable overall than either parent. Burley hybrids have been successfully grown for many years but early work with flue-cured tobacco hybrids did not show any advantages. Since tobacco is self-pollinated, production of hybrid seed requires hand pollination and hybrid seed are more expensive to produce. All hybrids are male sterile, which means they will not produce seed. Hybrid seed will only be available in pelleted form.
RG H4, RG H61, and RG 81 were developed by RG Seed Company. RG H4 and RG H61 are hybrids and only pelleted seed will be available for these two varieties. Information on parents used to develop a hybrid is not released.
RG H4 (tested as RG 2H4) is resistant to tobacco mosaic virus and has a higher quality potential than NC 567 and Coker 176. RG H4 is also moderately resistant to black shank and has a high level of resistance to Granville wilt. It is resistant to the common races of the root knot nematode. RG H4 produced average yields in 1996. It is a moderately maturing variety similar to VA 116 and NC 27 NF.
RG H61 (tested as RG3H 61) is similar in yield and quality to K 326. It was reported to cure well in the Regional Variety Evaluation Program. RG H6 l is a moderately maturing variety similar to VA 116 and NC 27 NF. It is moderately resistant to black shank and has a low level of resistance to Granville wilt. RG H61 is resistant to the common races of the root knot nematode.
* Extension Agronomist, Tobacco; Associate Professor of Agronomy; Extension Agronomist, Tobacco; and Extension Plant Pathologist, Tobacco, respectively; Virginia Tech, Southern Piedmont Agricultural Research and Extension Center, Blackstone, Va.
v· .. I®ffllTech • VIRGINIA POLYTECHNIC INSTITUTE
AND STATE UNIVERSITY
Virginia Cooperative Extension programs and employment arc open to all . regardless of race, color, religion, sex. age, veteran status, national origin. disability, or political affiliation. An equal opportunity/affirmative action employer. Issued in furtherance of
Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University. and the U.S. Department of Agriculture cooperating. C. Clark Jones. Director. Virginia Cooperative Extension, Virginia Tech, Blacksburg;
Lorenza W. Lyons, Adminisuator, 1890 Extension Program, Virginia State, Petersburg.
VT/028/0297/l .SM/9724561436047 VIRGINIA STA TE UNIVERSITY
N
Tab
le 1
. V
irgi
nia
Flue
-Cur
ed O
ffic
ial V
arie
ty T
est R
esul
ts:
Yie
ld, V
alue
, Pri
ce, G
rade
Ind
ex, 1
996.
1
So.
Pied
. C
harl
otte
-H
alif
ax
' S
tate
Ave
rage
I
AR
EC
C
ount
y C
ount
y Y
ield
P
rice
Y
ield
P
rice
Y
ield
P
rice
~i
eld
Pri
ce
Var
ietx
lb
s/A
$/
cwt
lbs/
A
$/cw
t lb
s/A
$/
cwt
bs/A
$/
cwt
CU
26
3
2817
19
1 30
62
192
2851
19
2 20
84
189
K3
26
31
74
191
3093
19
2 30
64
192
2804
19
0 K
34
6
2779
19
1 26
96
192
2867
19
2 22
47
190
K3
94
30
10
191
3088
19
2 27
56
192
2668
18
9 N
C 3
7 N
F
3180
19
1 29
00
192
3072
19
2 ~2
84
188
NC
71
2996
19
1 32
02
192
2690
19
2 61
6 18
8 R
GH
4 27
20
190
2720
19
2 24
17
192
2476
18
9 R
GH
61
2950
19
1 28
82
192
2502
19
2 27
56
188
RG
81
2903
19
1 30
90
192
2845
19
2 23
80
188
Sp.
G-1
17
2709
19
0 28
59
192
2584
18
6 23
03
189
VA
116
28
64
191
f 934
192
2938
19
2 27
98
189
Val
ue
Gra
de
Val
ue
Gra
de
Val
ue
Gra
de
Val
ue
Gra
de
$/A
In
dex2
$l
A
Inde
x $L
A In
dex
~ In
dex
CU
26
3
5391
75
58
75
65
5474
88
5
75
K3
26
60
65
81
5935
75
58
78
87
5317
80
K
34
6
5314
80
61
72
70
5501
88
42
74
71
K3
94
57
38
78
5923
72
52
91
84
5044
80
N
C 3
7 N
F
6050
83
55
60
72
5892
88
61
87
81
NC
71
5702
81
61
43
77
5164
88
49
11
72
RG
H4
5169
79
52
15
74
4635
85
46
76
75
RG
H61
56
23
79
5531
70
47
97
85
~195
77
RG
81
5541
82
59
27
75
5456
86
48
3 78
Sp
. G
-11
7 51
44
75
5488
71
48
00
79
4362
78
V
A 1
16
5467
81
56
30
76
5641
88
52
90
85
New
var
ietie
s fo
r 19
97 a
re in
bol
d.
1 T
ests
wer
e co
nduc
ted
in N
otto
way
(So
. Pi
ed.
Ag.
Res
. an
d E
xt.
Ctr
.),
Cha
rlot
te (
Jam
ie N
ewco
mb)
, Hal
ifax
(W
ayne
Pal
mer
), a
nd
Pit
tsyl
vani
a (K
enne
th H
utch
erso
n) c
ount
ies
in 1
996.
2 G
rade
ind
ex is
a n
umer
ical
qua
lity
rat
ing
base
d on
gov
ernm
ent g
rade
. Hig
h ra
ting
s ar
e be
st.
Pit
tsy 1
vani
a C
ount
y Y
ield
P
rice
lb
s/A
$/
cwt
3271
19
2 37
36
191
3306
19
0 35
27
190
3464
19
0 34
74
190
3266
18
8 36
60
190
3298
19
1 ·3
088
192
2786
19
0
Val
ue
Gra
de
$/A
In
dex
6279
72
71
30
82
6308
92
66
95
76
6562
92
65
90
88
6151
82
69
70
82
6299
88
59
24
70
5307
74
"' T
able
2.
Vir
gini
a F
lue-
Cur
ed T
obac
co O
ffic
ial V
arie
ty T
est
Res
ults
by
Yea
rs, S
outh
ern
Pie
dmon
t A
gric
ultu
ral
Res
earc
h an
d E
xten
sion
C
ente
r. B
lack
ston
e V
A.
Yie
ld2 lb
s/ A
V
alue
2 ~A
Pri
ce,
$Lcw
t V
arie
ty
1992
19
93
1994
19
95
1996
A
vg.1
1992
19
93
1994
19
95
1996
19
92
1993
19
94
1995
19
96
c 31
9 25
02
2683
34
41
2980
23
65
2794
44
46
4385
58
79
5378
45
37
178
163
171
180
192
C37
1 G
old
2854
35
07
3776
30
93
2631
31
72
5041
59
92
6444
55
98
5044
17
7 17
1 17
1 18
1 19
2 C
U26
3 --
--
--
3122
30
62
3092
--
-----
5679
58
75
--
--
--
182
192
K 1
49
2485
27
33
3460
33
19
2585
29
16
4388
44
01
5876
60
06
4957
17
7 16
1 17
0 18
1 19
2 K
326
2874
34
36
4072
35
36
3093
34
02
5056
59
27
7067
64
25
5935
17
6 17
3 17
3 18
2 19
2 K
346
2543
30
61
3625
32
77
2696
30
40
4511
50
23
6061
59
10
5172
17
7 16
4 16
7 18
0 19
2 K
358
2691
35
08
3666
32
72
3001
32
28
4760
56
99
6367
59
62
5757
17
6 16
3 17
4 18
2 19
2
K39
4 26
99
3164
38
19
3579
30
88
3270
47
29
5175
64
73
6532
59
23
175
163
169
182
192
K73
0 25
00
3233
35
81
3197
29
19
3086
43
61
5190
61
07
5792
56
00
174
162
170
181
192
McN
944
2430
30
44
3766
35
14
2837
31
18
4261
49
09
6209
63
68
5428
17
5 16
1 16
5 18
1 19
1 N
C27
NF
26
58
3028
38
10
3755
33
78
3326
46
18
4876
64
53
6783
64
69
174
161
169
181
191
NC
37
NF
2635
29
11
3654
32
98
2900
30
80
4587
47
42
6170
59
72
5560
17
4 16
3 16
9 18
1 19
2 N
C71
--
--
--
--
3202
32
02
--
--
--
--
6143
-------
192
NC
567
2623
32
40
3569
35
08
2749
31
38
4615
52
00
6040
63
04
5274
17
6 16
1 16
9 18
0 19
2 ~
NC
729
2478
29
93
3545
35
38
2982
31
07
4354
48
95
5962
63
97
5720
17
5 16
4 16
8 18
1 19
2 O
X94
0 --
3244
34
34
3283
25
81
3136
--
5158
57
09
5915
49
46
--
160
166
180
192
Rea
ms
158
2424
29
48
3334
32
54
2421
28
76
4163
49
05
5688
58
70
4647
17
1 16
6 17
0 18
0 19
2 R
G 1
1 23
83
3183
33
78
3527
28
99
3074
41
61
5328
57
35
6399
55
64
175
168
170
182
192
RG
17
--
--
3833
36
69
3138
35
47
--
--
6487
66
23
6022
--
169
180
192
RG
H61
--
-----
--
2882
28
82
--
--
--
--
5531
------
192
RG
81
--
--
--
3947
30
90
3518
--
--
--
7135
59
27
--
--
--
181
192
RG
H4
--
--
--
3667
27
20
3194
--
--
--
6658
52
15
----
182
192
Sp. G
-70
--
--
--
4021
29
27
3474
--
--
--
7277
56
15
--
--
--
181
192
Sp. G
-108
27
55 --
3829
34
65
3070
32
80
4848
--
6218
62
65
5881
17
6 -
162
181
191
Sp. G
-117
25
42
3320
33
96
3610
28
59
3145
44
59
5567
56
86
6547
54
88
176
167
168
181
192
Sp. G
-126
--
3154
36
43
3359
27
41
3224
--
5109
62
05
6091
52
62
-16
2 17
0 18
1 19
2 V
A 1
16
2610
34
33
3610
33
89
2934
31
95
4569
58
14
6127
61
38
5630
17
5 16
9 17
0 18
2 19
2 N
ew v
arie
ties
for
199
7 ar
e in
bol
d.
1 A
vera
ges
are
not d
irect
ly c
ompa
rabl
e un
less
the
num
ber o
f yea
rs is
equ
ival
ent.
"""'
Tab
le 3
. A
gron
omic
and
Dis
ease
Inf
orm
atio
n fo
r V
arie
ties
Tes
ted
at th
e S
outh
ern
Pie
dmon
t Agr
icul
tura
l R
esea
rch
and
Ext
ensi
on
Cen
ter,
Bla
ckst
one,
Va,
199
6.
Day
s P
lant
G
roun
d G
rade
to
H
eigh
t L
eaf
Suc
kers
~
Dis
ease
Rea
ctio
ns 3
Varlet~
lnde
x1
Flo
wer
{i
n.)
No.
Q
er Q
lot 2
: B
S
TM
V
RK
G
W
B.S
p.
c 31
9 70
65
38
.4
18.3
23
.7
L
s s
L
M
C 3
71 G
old
76
62
33.0
17
.8
24.7
H
s
s M
M
C
U2
63
65
65
38
.2
18.3
2.
3 L
s
R
L
K 1
49
73
62
33.2
18
.5
5.0
M
s R
H
H
K
32
6
75
65
36.1
19
.2
4.3
I
L
s R
L
H
K
34
6
70
67
I
35.3
18
.6
8.0
IH
s
R
H
H
I
K3
58
77
63
36
.3
18.9
4.
3 M
s
R
M
H
K3
94
72
67
34
.3
19.3
2.
0 ,
H
s s
L
L
K7
30
77
64
35
.5
19.3
15
.0
L
s R
H
M
cN9
44
63
65
I
36.0
18
.5
8.0
I M
s
s L
s
NC
27
NF
74
N
F4
35.7
18
.3
7.7
I L
s
s L
L
I
NC
37
NF
72
N
F
39.0
18
.9
10.0
!
L
s R
L
L
N
C7
1
77
65
: 35
.7
18.7
6.
0 J
H
s R
M
N
C5
67
66
58
35
.1
18.7
17
.3
L
R
R
M
M
~
NC
72
9
79
64
32.6
19
.1
3.7
L
s R
H
I
OX
94
0
76
60
33.1
18
.6
22.7
r
H
s s
M
Rea
ms1
58
71
62
35
.5
18.2
3.
0 M
s
s L
L
RG
11
74
60
! I 33
.8
18.1
20
.0
M
s R
H
R
G 1
7 71
65
I
35.0
19
.3
4.3
L
s R
M
R
GH
61
70
58
36
.2
18.2
7.
0 M
s
R
L R
G8
1
75
63
I 33
.8
18.5
3.
3 ,
M
s R
M
R
GH
4
74
58
34.6
17
.8
7.7
M
R
R
H
Sp.
G-7
0 69
64
34
.7
18.3
26
.7
1H
s
R
M
M
Sp.
G-1
08
72
65
37.7
18
.7
10.0
M
s
R
M
M
Sp.
G-1
17
71
58
33.4
18
.3
3.7
(M
s
R
H
Sp.
G-1
26
72
65
38.0
19
.0
6.7
M
s R
M
V
A 1
16
76
58
34.0
18
.1
21.7
M
s
s L
M
New
var
ieti
es f
or 1
997
are
in b
old.
1 G
rade
ind
ex is
a n
umer
ical
qua
lity
rat
ing
base
d on
gov
ernm
ent g
rade
. H
igh
rati
ngs
are
best
. 2
Gro
und
suck
ers/
22 p
lant
plo
t. 3
Dis
ease
rea
ctio
n -
H =
hig
hly
resi
stan
t; M
= m
oder
ate;
L =
low
; S
= s
usce
ptib
le;
R =
res
ista
nt;
BS
= B
lack
Sha
nk;
GW
= G
ranv
ille
Wil
t; R
K =
Ro
ot
Kno
t; T
MV
=T
ob
acco
Mos
aic
Vir
us;
B.
Sp.
=B
row
n S
pot.
4 N
F =
non
flow
erin
g. P
lant
s sh
ould
be
topp
ed a
t 20
to 2
2 ha
rves
tabl
e le
aves
.
Table 4. Percentage of certain color grade factors of varieties tested at four locations in 1996.
Variett L1 F K v KF KV KM G OT CU263 8 49 25 0 15 1 0 0 2 K326 9 64 15 1 5 0 5 0 1 K346 10 52 32 2 0 0 0 0 4 K394 19 44 17 2 13 0 5 0 0 NC37NF 15 70 12 0 0 0 0 0 3 NC71 10 53 32 2 2 0 0 0 1 RGH4 18 46 28 1 5 0 2 0 0 RGH61 14 59 15 0 6 0 3 1 2 RG81 12 65 17 2 2 0 0 0 2 Sp. G-117 13 53 18 0 14 0 0 0 2 VA116 14 66 5 0 7 0 6 0 2 New varieties for 1997 are in bold. 1 L=lemon; F=orange; K=variegated; V=greenish; KF=variegated orange; KV =variegated
RG 81 (tested as RG OB 18) was developed from a cross of K 326 ¥ K 399. It is similar in yield and quality to K 326. RG 81 is a moderately maturing variety similar to VA 116 and NC 27 NF. RG 81 is moderately resistant to black shank and Granville wilt. It is resistant to the common races of the root knot nematode.
NC 71 (tested as NC TG-71) was developed by North Carolina State University and is a hybrid. Only pelleted seed will be available from Rickard Seed Co. NC 71 has a very high level of black shank resistance, a moderate level of resistance to Granville wilt, and is resistant to the common races of the root knot nematode. NC 71 is a late maturing variety similar to K 326.
Information is provided for widely grown and recently released varieties in Tables 1 to 5 of this publication. Results of eleven varieties included in the 1996 Virginia Official Variety Tests (OVT) are shown in Table 1. These tests were conducted in Charlotte (Jamie Newcomb), Halifax (Wayne Palmer), Pittsylvania (Kenneth Hutcherson), and Nottoway (Southern Piedmont Agricultural Research and Extension Center) counties under the joint supervision of Extension Agents in the respective counties and Virginia Polytechnic Institute and State University re-search and Extension personnel. Testing in various locations throughout the production area makes it possible to evaluate varietal performance under the widely ranging soil and weather conditions existing in Virginia. Such a testing program
5
also provides an opportunity for produc-ers to observe flue-cured tobacco varieties under field conditions in their particular region. Con-tact the Extension agent in your county to arrange a visit to the on-farm variety test nearest you and to learn of tours of tobacco on-farm tests.
Data in Table 1 are for only one year and the results may not be indicative of what might be obtained in other years. The test in Pittsylvania county was completely harvested prior to hurricane Fran whereas all other tests were only partially harvested. There was some differential leaf drop among varieties, therefore yield data needs to be interpreted cautiously. Where available, averages that include 1992 to 1996 data are also presented in Table 2.
Information on agronomic performance and disease resistance levels is given in Table 3. The use of disease resistant varieties is a very effective means of reducing losses due to certain diseases and nematodes. However, varietal resistance cannot be used alone. Any variety may suffer damage when nematodes and disease causing organisms are present and when weather conditions favor their development. An effective pest management program will also include crop rotation (particularly with fescue and small grains) and other cultural control practices. Combining varietal resistance with crop rotation, early stalk and root destruction, and proper use on pesticides is the only way to achieve consistent, costeffective disease and nematode control.
Disclaimer Commercial products are named in this publication for information purposes only. Virginia Cooperative Extension and Virginia Polytechnic Institute and State University do not endorse these products and do not intend discrimination against other products which also may be suitable.
Virginia Cooperative Extension U.S. Department of Agriculture
Virginia Polytechnic Institute and State University
Blacksburg, Virginia 24061-0512
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