LD

5lfJ ~- • • 111rc, 1 1rgin1a 583 oopei:ative

1995 Extension Tobacco

VP/ ~P"'

Flue-Cured Tobacco Variety Information for 1995

T.D. Reed, CA. Wilkinson, J.L. Jones, and C.S. Johnson*

Seed of one new variety, RG 17, will be commer­cially available to tobacco producers in 1995. RG 17 (tested as RG OBl 7) was developed by the RG Seed Company from a cross of K 326 by K 399. This variety met the chemical and physical stan­dards established by the Regional Variety Evalua­tion Program in 1993. In variety evaluation tests at four locations in Virginia in 1994, RG 17 produced average yield and cured leaf quality. Data from 1994 indicates that RG 17 is a moderate maturing variety, as compared to early varieties such as Reams 158 and Coker 371-Gold and later varieties such as K 326 and K 346. RG 17 has a low level of resistance to black shank, a moderate level of resistance to Granville wilt, is resistant to root knot nematode, and is susceptible to tobacco mosaic virus. 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.

Information is provided for widely grown and recently released varieties in Tables 1-5 of this publication. Results of 12 varieties included in the 1994 Virginia Official Variety Tests (OVT) are shown in Table 1. These tests were conducted in Charlotte (Clark Poindexter), Halifax (yvayne

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 research 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 also provides an opportunity for producers to observe flue-cured tobacco varieties under field conditions in their particular region. Contact 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. Where available, aver­ages that include 1990 io 1994 data are also present in Table 2. Table 5 presents data on harvest rates/maturation patterns for the 12 variet­ies in the OVT.

*Extension Agronomist, Tobacco; Associate Professor of Agronomy; Extension Agronomist, Tobacco; and Extension Plant Pathologist, ( Tobacco, respectively; Southern Piedmont AREC, Virginia Tech ,Tech

VIRGINIA POL YfECHNIC INSTITUTE AND STATE UNIVERSITY

Virginia Cooperative Extension pmgr.oms and employment arc open lo all , regardless of race, color, religion, sex, age, veteran s1a1us,

national origin. disability, or political affiliation. An equal opportunily/affirma1ive action employer. Issued in furthcranoc of

Cooperative Extension work, Virginia Polytechnic Institute and Stale University, Virginia Slate University, and lhc U.S. Department

of Agriculture cooperating. William A. Allen, Director, Virgi nia Cooperative Extension, Virgi nia Tech, Blacksburg;

Lorenza W. Lyons, Adminislrator, 1890 Extension Program. Virginia Stale, Petersburg.

VT/028/0195/ I M/952336/436047 VIRGINIA STATE UNIVERSITY

Tabl

e 1.

V

irgin

ia F

lue-

Cur

ed O

ffic

ial V

arie

ty T

est R

esul

ts:

Yie

ld, V

alue

, Pric

e, G

rade

Ind

ex,1

994.

l

So P

ied

Ag

Cha

rlotte

H

alifa

x Pi

ttsyl

vani

a St

ate

Ave

rage

R

es &

Ext

Ctr

Cou

nty

Cou

nty

Cou

nty

Yie

ld

Pric

e Y

ield

Pr

ice

Yie

ld

Pric

e Y

ield

Pr

ice

Yie

ld

Pric

e V

arie

ty

lbs/

A

$/cw

t lb

s/A

$/

cwt

lbs/

A

$/cw

t lb

s/A

$/

cwt

lbs/

A

$/cw

t K

326

3669

17

3 40

72

173

3512

17

2 32

41

173

3852

17

5 K

346

3464

17

3 36

25

167

3756

17

6 30

57

169

3416

18

0 K

394

3500

17

3 38

19

169

2992

17

2 34

95

174

3696

17

6 K

730

3544

17

4 35

81

170

3619

17

4 32

27

172

3748

17

9 N

C27

NF

36

31

174

3810

16

9 32

46

174

3525

17

3 39

42

178

NC

37N

F

3420

17

4 36

54

169

3467

17

4 29

47

173

3611

18

2 O

x940

30

52

171

3434

16

6 29

05

170

2478

17

0 33

90

178

Rea

ms

Ml

3002

17

2 32

96

169

3259

17

4 26

41

171

2812

17

2 R

G8

3392

17

3 37

56

171

3548

17

3 31

63

172

3102

17

6 R

G17

34

26

172

3833

16

9 35

41

173

3065

17

3 32

65

174

Sp G

-126

33

32

172

3643

17

0 35

87

174

2912

17

1 31

84

172

VA

116

32

84

172

3610

17

0 34

71

174

3007

17

3 30

49

172

I\)

Val

ue

Gra

de

Val

ue

Gra

de

Val

ue

Gra

de

Val

ue

Gra

de

Val

ue

Gra

de

jJA

In

dex2

jJ

A

Inde

x jJ

A

Inde

x JL

A

Inde

x jJ

A

Inde

x K

326

6356

70

70

67

72

6041

72

55

93

72

6724

64

K

346

5995

73

60

61

61

6619

79

51

56

68

6144

84

K

394

6046

71

64

73

62

5146

77

60

81

74

6484

72

K

730

6171

72

61

07

62

6312

79

55

53

73

6711

76

N

C27

NF

.

6299

74

64

53

65

5644

77

61

08

75

6991

79

N

C37

NF

59

68

76

6170

63

60

18

75

5091

75

65

93

92

Ox9

40

5224

72

57

09

62

4941

71

42

13

69

6032

84

R

eam

s M

l 51

54

71

5573

70

56

79

79

4512

71

48

54

63

RG

8 58

62

74

6432

75

61

27

75

5434

74

54

55

72

RG

17

5904

71

64

87

64

6141

79

52

92

75

5694

66

Sp

G-1

26

5733

70

62

05

67

6241

80

49

81

71

5504

63

V

A 1

16

5652

69

61

27

63

6045

78

51

92

75

5246

60

N

ew v

arie

ties

for

199

5 ar

e in

bol

d.

lTes

ts we

re c

ondu

cted

in No

ttowa

y (S

o. Pi

ed. A

g. Re

s. an

d Ex

t. Ct

r.), C

harlo

tte (C

lark

Poin

dext

er),

Hali

fax

(Way

ne P

almer

), an

d Pi

ttsyl

vani

a (K

enne

th H

utch

erso

n) c

ount

ies

in 19

94.

2ara

de in

dex

is a n

umer

ical q

ualit

y ra

ting

base

d on

gov

ernm

ent g

rade

. Hi

gh ra

tings

are

best.

Tabl

e 2.

Virg

inia

Flu

e-C

ured

Tob

acco

Off

icia

l Var

iety

Tes

t Res

ults

by

Yea

rs, S

outh

ern

Pied

mon

t Agr

icul

tura

l Res

earc

h an

d E

xten

sion

Cen

ter,

Bla

ckst

one,

VA

.

Yie

ld, l

bs/ A

V

alue

! $/

A

Pric

e, $

/cw

t V

arie

ty

1990

19

91

1992

19

93

1994

A

vgl

1990

19

91

1992

19

93

1994

19

90

1991

19

92

1993

19

94

C31

9 29

15

3205

25

02

2683

34

41

2949

51

11

5555

44

46

4385

58

79

175

173

178

163

171

C 3

71 G

old

3073

33

67

2854

35

07

3776

33

15

5382

59

34

5041

59

92

6444

17

5 17

6 17

7 17

1 17

1 K

149

2992

32

83

2485

27

33

3460

29

91

5196

57

89

4388

44

01

5876

17

4 17

6 17

7 16

1 17

0 K

326

3421

35

18

2874

34

36

4072

34

64

6084

61

81

5056

59

27

7067

17

8 17

6 17

6 17

3 17

3 K

346

3004

32

63

2543

30

61

3625

30

99

5267

57

63

4511

50

23

6061

17

5 17

7 17

7 16

4 16

7

K35

8 30

47

3340

26

91

3508

36

66

3250

53

91

5826

47

60

5699

63

67

177

174

176

163

174

K39

4 35

69

3489

26

99

3164

38

19

3348

62

14

6073

47

29

5175

64

73

174

174

175

163

169

K73

0 --

3107

25

00

3233

35

81

3105

--

5396

43

61

5190

61

07

-17

4 17

4 16

2 17

0 M

cN 9

44

2961

33

13

2430

30

44

3766

30

49

5143

57

78

4261

49

09

6209

17

4 17

4 17

5 16

1 16

5 N

C27

NF

27

64

3539

26

58

3028

38

10

3160

48

41

6131

46

18

4876

64

53

175

173

174

161

169

NC

37N

F

3145

30

24

2635

29

11

3654

30

74

5466

52

69

4587

47

42

6170

17

4 17

4 17

4 16

3 16

9 N

C82

26

12

3331

23

52

3001

34

63

2952

45

62

5807

40

48

5032

59

38

174

174

172

168

171

NC

567

3048

30

14

2623

32

40

3569

30

99

5334

52

55

4615

52

00

6040

17

5 17

4 17

6 16

1 16

9 N

C72

9 --

3583

24

78

2993

35

45

3150

--

6218

43

54

4895

59

62

-17

4 17

5 16

4 16

8 w

O

x940

32

44

3434

33

39

5158

57

09

160

166

--

---

--

---

--

-

Rea

ms

158

2994

34

62

2424

29

48

3334

30

32

5159

61

12

4163

49

05

5688

17

2 17

6 17

1 16

6 17

0 R

eam

s M

l --

--

--

3219

32

96

3258

--

--

--

5224

55

73

--

-16

5 16

9 R

G8

--

3634

25

99

3410

37

56

3350

--

6346

45

35

5614

64

32

-17

5 17

4 16

5 17

1 R

G 1

1 --

-23

83

3183

33

78

2981

--

--

4161

53

28

5735

-

-17

5 16

8 17

0 R

G13

--

-24

97

3384

34

99

3127

--

-43

27

5661

59

37

--

173

167

170

RG

17

--

--

--

--

3833

--

--

--

--

--

6487

-

--

-16

9 R

G22

--

3125

25

24

3016

31

54

2955

--

5481

44

74

5018

54

05

-17

5 17

7 16

6 17

1 Sp

G-2

8 29

50

2995

26

23

3164

35

77

3062

51

85

5199

46

41

5188

61

10

176

173

177

164

171

Sp. G

-108

32

38

3518

27

55 --

3829

33

35

--

---

--

6218

-

--

-16

2 Sp

G-1

11

--

-24

39

3146

35

35

3040

--

-43

14

5185

59

88

--

177

165

169

Sp G

-117

--

3037

25

42

3320

33

96

3074

--

5232

44

59

5567

56

86

-17

2 17

6 16

7 16

8 Sp

G-1

26

--

---

3154

36

43

3398

--

---

5109

62

05

--

-16

2 17

0 V

A11

6 31

63

3241

26

10

3433

36

10

3211

55

51

5581

45

69

5814

61

27

176

172

175

169

170

New

var

ieti

es f

or 1

995

are

in b

old.

lA

vera

ges

are

not d

irect

ly c

ompa

rabl

e un

less

the

num

ber

of y

ears

is e

quiv

alen

t.

Table 3. Agronomic and Disease Information for Varieties Tested at the Southern Piedmont Agricultural Research and Extension Center, Blackstone, VA, 1994.

Days Plant Ground to Height Leaf Suckers Disease Reaction2

Variety Flower (in.) No. per plotl BS TMV RK GW B.Sp. Coker 319 72 34.3 17.9 0 L s s L M Coker 371 Gold 69 32.1 18.6 0.3 H s s M M K149 74 32.4 18.5 0 M s R H H K326 69 30.1 18.3 0 L s R L H K346 70 31.8 18.5 0.3 H s R H H K358 69 31.6 16.9 0 M s R M H K394 71 32.6 18.7 0 H s s L L K730 69 30.1 18.3 0 L s R H McN944 69 32.4 17.5 1.7 M s s L s NC27NF NF3 30.5 18.8 0 L s s L L NC37NF NF3 33.4 17.3 0 L s R L L NC82 71 32.5 18.3 1.3 H s s M M NC567 67 33.2 17.1 0.3 L R R M M NC729 69 28.2 18.7 0.7 L s R H OX940 67 28.9 17.5 0 H s s M Reams 158 72 32.5 17.6 0 M s s L L Reams Ml 73 29.5 17.9 0 M s M RG8 70 29.3 19.3 0.7 M s R M RGll 76 34.0 18.2 0.3 M s R H RG13 71 31.8 19.1 0.3 M s R M RG17 71 28.6 18.3 0.3 L s R M RG22 72 26.9 18.7 0.3 M s R H Sp. G-28 70 29.9 18.3 0 M s R M M Sp. G-108 69 30.8 18.0 0 M s R M M Sp. G-111 70 28.2 19.0 1.7 M s R M Sp. G-117 76 29.2 18.4 0 M s R H Sp. G-126 75 33.0 19.5 0 M s R M VA116 70 31.6 18.2 2.0 M s s L M

New varieties for 1995 are in bold. lGround suckers/22 plant plot. 2Disease reaction - H=highly resistant; M=moderate; L=low; S=susceptible; R=resistant; BS=Black Shank; GW=Granville Wilt; RK=Root Knot; TMV=Tobacco Mosaic Virus; B.Sp.=Brown Spot. 3NF=nonflowering. Plants should be topped at 20-22 harvestable leaves.

4

Tab

le 4

. Pe

rcen

tage

of c

erta

in c

olor

gra

de f

acto

rs o

f var

ieti

es t

este

d at

fou

r lo

catio

ns in

199

4.

Var

iety

L

l F

FR

K

KR

v

KL

K

F K

M

G

K3

26

8

42

3 18

0

0 0

17

12

0 K

34

6

2 52

0

31

0 0

0 11

4

0 K

39

4

6 45

0

28

0 0

0 15

6

0 K

73

0

3 53

0

21

0 8

0 6

9 0

NC

27

NF

5

56

0 18

0

4 0

12

4 1

NC

37

NF

3

54

0 33

0

0 0

10

0 0

OX

94

0

2 40

0

28

8 0

0 4

11

7 R

eam

s M

l 2

55

0 25

0

0 0

18

0 0

RG

8

5 53

0

22

0 0

0 10

10

0

RG

17

4

52

0 18

0

0 2

10

12

2 Sp

. G

-126

8

50

0 21

0

0 0

18

3 0

VA

116

6 41

0

23

0 2

4 18

6

0 N

ew v

arie

ties

for

199

5 ar

e in

bol

d.

lL=

lem

on; F

=ora

nge;

FR

=or

ange

red

; K

=va

rieg

ated

; K

R=

vari

egat

ed r

ed;

V=

gree

nish

; K

L=

vari

egat

ed le

mon

; K

F=va

rieg

ated

ora

nge;

KM

=va

rieg

ated

mix

ed;

G=

gree

n.

01

T

able

5.

Har

vest

rat

e (c

umul

ativ

e pe

rcen

tage

by

harv

est)

as

a m

easu

re o

f var

ieta

l mat

urat

ion

patt

erns

.!

So.

Pie

dmon

t C

harl

otte

H

alif

ax

Pit

tsyl

vani

a V

arie

ty

Hl

H2

H3

H4

Hl

H2

H3

H4

Hl

H2

H3

H4

HS

Hl

H2

H3

H4

K3

26

14

38

56

10

0 12

23

44

10

0 14

29

44

64

10

0 14

31

47

10

0 K

34

6

13

32

56

100

12

20

38

100

16

32

45

63

100

16

36

57

100

K3

94

14

39

61

10

0 13

25

57

10

0 17

33

44

65

10

0 15

32

54

10

0 K

73

0

13

30

50

100

9 19

40

10

0 16

35

43

65

10

0 13

29

46

10

0 N

C2

7N

F

12

29

48

100

13

26

53

100

18

35

55

100

-12

26

42

10

0 N

C3

7N

F

11

32

55

100

13

22

46

100

17

39

62

82

100

14

32

49

100

OX

94

0

14

39

62

100

14

27

60

100

19

42

67

100

-21

45

71

10

0 R

eam

s M

l 16

41

65

10

0 12

24

49

10

0 19

44

69

10

0 -

20

42

58

100

RG

8

15

37

58

100

11

23

51

100

20

41

64

100

-19

38

57

10

0 R

G1

7

14

34

53

100

12

23

46

100

18

37

60

81

100

20

48

60

100

Sp. G

-126

13

33

51

10

0 11

22

44

10

0 17

36

50

64

10

0 20

42

66

10

0 V

A11

6 14

33

57

10

0 10

21

48

10

0 15

42

76

10

0 -

18

43

67

100

New

var

ieti

es f

or 1

995

are

in b

old.

1 H

arve

st d

ate

for

each

pri

min

g w

as d

eter

min

ed b

y th

e ap

pear

ance

of t

he t

obac

co a

t eac

h lo

catio

n. T

he t

obac

co p

rodu

ced

and

the

rate

of r

e-m

oval

wer

e in

flue

nced

by

indi

vidu

al m

anag

emen

t and

loc

al s

oil

and

wea

ther

con

ditio

ns.

Information on agronomic performance and disease resistance levels is given in Table 3. The use of 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 (particu-

Disclaimer

larly with fescue or small grains) and other cul­tural control practices. Combining varietal resis­tance with crop rotation, early stalk and root destruction, and proper use of pesticides is the only way to achieve consistent, cost-effective disease and nematode control.

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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