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-This research was supported by soybean grower check-off funds administered by the Arkansas soybean Promotion Board.
Brand/Cultivar2 CBES3 SBS MWF PTES FLS (S) PTES CBES
FLS (S)4 FLS (S) FLS (S) FLS (S) mean5 BS (I)6 CLB (S)7
435RC 3.67 3.33 -- -- 3.5 -- 4.67
465RC 3 2.67 -- -- 2.83 -- 5.67
Armor 39-E9 3 2.67 2.67 2.33 2.67 7 6
Armor 44-R4 3.67 4 3.67 3.33 3.67 6 2.33
Armor 44-R5 1 1 1 1 1 7.33 3.33
Armor 47-G7 3 2.33 3.33 2.33 2.75 6.33 2.67
ARX B43104 -- 1 -- -- 1 -- --
Asgrow AG4201 3.33 1.33 3 1.67 2.33 6 5.33
Asgrow AG4403 3.67 4 3.67 3.67 3.75 6.33 4
Asgrow AG4502 3 2.67 2 2 2.42 6.33 3.67
Asgrow AG4603 4.67 4 4 4 4.17 5.67 2.33
AV 43fill 1 1.33 -- -- 1.17 -- 2.33
AV 46J5NRR 1 1 -- -- 1 -- 1.33
DeKalb DKB44-51 3.67 4 4 3.33 3.75 6.67 3.67
DeKalb DKB46-51 3.33 3 3.67 3 3.25 6 3.33
Delta Grow 4340RR 1 1 1 1 1 7.67 5.33
Delta Grow 4630RR 4 4 4 4 4 6 4.33
Delta Grow 4840RR 3 3 2.67 2.33 2.75 6.67 3.67
Delta King 4461RR 3.67 4 4 3 3.67 5 2
Delta King 4763RR 3.33 3 3.67 2.67 3.17 6.33 3.33
Delta King XTJ446 2.67 3 1.67 1.67 2.25 5.33 4
Delta King XTJ501 3.67 4 3.67 3.33 3.67 5.67 3.33
Delta King XTJ502 4 3 3.33 2.67 3.25 6.33 3.67
Delta King XTJ540 3.67 3 3 2.67 3.08 7.33 4.33
Delta King XTJ541 5 3.67 5 4 4.42 7 6
Delta King XTJ543 1 1 1 1 1 6.67 5.33
Delta King XTJ545 4.67 4 3.67 4 4.08 5.67 2.67
Delta King XTJ546 4 4 3.67 3.33 3.75 5.67 4.33
Deltapine 4331RR 3.67 3.67 4 3.67 3.75 6.33 3
Deltapine 4546RR 1 1 1.33 1 1.08 6 3
Deltapine 4724RR 1 1.67 1.67 1 1.33 3.67 1.67
Dulaney Seed AV46J5NRR -- -- 1 1 1 6.67 --
Dyna Gro 3443NRR 4 4 4 3.33 3.83 5.67 2.33
Dyna Gro 3463NRR 3.33 3 4 3 3.33 7 5
Garst 4612RR/N -- 2.33 -- -- 2.33 -- --
Genesis C444RR 3.33 4 3.67 3.67 3.67 6.33 3
Arkansas Soybean Variety Disease Reactions, 20041
Brand/Cultivar2 CBES3 SBS MWF PTES FLS (S) PTES CBES
FLS (S)4 FLS (S) FLS (S) FLS (S) mean5 BS (I)6 CLB (S)7
Genesis E434NRR 1 1 1 1 1 6.67 5
Golden Harvest H-4368 4 2 4 3.33 3.33 6.67 4.67
Golden Harvest H-4749 1 1 1 1 1 4 1
HBK R4023 3 2.67 3.33 1.67 2.67 7.33 5.33
HBK R4623 1 1 1 1 1 6.67 3
Joyce 47 2.67 3.33 -- -- 3 -- 3.67
Kelly 04-4162 RR -- -- 4.67 3.67 4.17 6.67 --
Kelly 04-4652 RR -- -- 1 1 1 7 --
Kelly 99-1908 RR -- -- 2.67 1.33 2 7 --
Kelly DPX 3950 RR -- -- 3 2.67 2.83 7 --
Morsoy RT4304 1 1.33 1 1 1.08 7.33 5.67
Morsoy RT4480 3.33 4 3 3 3.33 4.67 2
MPV 4705nRR 3.33 3 -- -- 3.17 -- 2.67
Mycogen 5N391RR -- -- 3 2.67 2.83 7 --
Mycogen 5N471RR -- -- 3 2.33 2.67 6 --
NK Brand S43-B1 4 3.33 3 3 3.33 7.33 5.67
PGY 4304RR 1 1 1 1 1 7.33 5.33
PGY 4604RR 4 4 4 3.33 3.83 6.33 4.33
Pioneer 94B73 1 1 1 1 1 7.33 5.33
Pioneer 94M70 4 4 4.33 3.33 3.92 6.67 4.33
Progeny 3900RR 3 3 3 3 3 5.67 6
Progeny 4401RR 3.67 4 3.67 -- 3.78 2.67 2.67
Progeny 4703RR 1 1 2 -- 1.33 -- 1.67
S02-677RR 3.67 4 3 3 3.42 4.33 2
S02-679RR 3.67 -- 3.33 3 3.33 5.67 4
Schillinger Seed 435 RC -- -- 3 2.67 2.83 6.67 --
Schillinger Seed 465 RC -- -- 2.5 2 2.25 6 --
Terral TVX44R401 1 1 1 1 1 6.67 5.33
TerralTVX45RL21 1 1 1 1 1 7 4.33
Terral TVX45RM21 1 1 1 1 1 6.67 3.67
Terral TVX45RN21 1 1 1 1 1 6.67 3.67
Terral TVX46R401 4.33 4 4 4 4.08 5.33 4
USG 7434nRR 1 1 1 1 1 7 4.33
USG 7440nRR 3.67 4 4 -- 3.89 7.33 3
USG 7443nRR 1 1 1 -- 1 5.67 5.33
1Evaluation of soybean cultivars for reaction to diseases was conducted in field environments with high disease pressure where naturally occurring inoculum was present.
Arkansas Soybean Variety Disease Reactions, 20041
Brand/Cultivar2 CBES3 SBS MWF PTES FLS (S) PTES CBES
FLS (S)4 FLS (S) FLS (S) FLS (S) mean5 BS (I)6 CLB (S)7
2Each brand/cultivar was repeated 3 times at each location and plots were arranged as a complete randomized block.
3Reactions to frogeye leaf spot (FLS) were evaluated at four locations; Cotton Branch Experiment Station, Marianna, AR. (CBES), Southeast Branch Station, Rohwer, AR. (SBS) Mike White Farm, Lonoke County, AR. (MWF), and Pine Tree Experiment Station, Colt, AR. (PTES).
4FLS severity (S) values are the mean visual estimate of the percentage of leaf area with symptoms within three replications according to a Horsfall-Barrett (H-B) scale (0-11) where 0=no symptoms present, 1=0.1-3%, 2=3.1-6%, 3=6.1-12%, 4=12.1-25%, 5=25.1-50%, 6=50.1-75%, 7=75.1-87%, 8=87.1-94%, 9=94.1-97%, 10=97.1-99%, 11=100%.
5H-B values in this column are the mean FLS rating from the four locations.
6Brown Spot (BS) H-B incidence (I) values are the mean visual estimate of the percentage of leaves with symptoms within three replications at the PTES locations.
7Cercospora Leaf Blight (CLB) H-B severity (S) values are the mean visual estimate of the percentage of leaf area with symptoms within three replications at the CBES locations.
Questions about this evaluation should be addressed to Mr. Mark Trent<,trent@uaex.edu>, Ms. Kimberly Hurst <khurst@uaex.edu>, Dr. Rick Cartwright <rcartwright@uaex.edu>, Dr. Terry Kirkpatrick <tkirkpatrick@uaex.edu>, all with the University of Arkansas Division of Agriculture.