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Disease / Nematode Ratings1 Pesticide Chloride6
Root2 Soybean Cyst3 Frogeye Stem Sudden Sensitivity Sensitivity
Knot Nematode Leafspot Canker Death Prop- Sulfen- Ratings
Variety Nematode 2 5 6 Syn. anil4 trazone5 2005 2004
Maturity Group IV
Armor 44-R4 9 7 7 7 7 7 3* R T INC INC
Armor 47-G7 9 9 7 7 5 7 5* R S INC INC
Armor GP474 1 9 7 7 5 1 5 R INC INC
Asgrow AG4201RR 9 7 9 7 5 3 7* R S INC INC
Asgrow AG4403RR 7 9 7 9 7 7 3* MR T INC INC
Asgrow AG4801RR 9 9 9 9 1 9 5^ R MIXED MIXED
Asgrow AG4902 9 9 9 7 5 3 5^ R T EXC INC
Asgrow AG4903RR 9 9 9 9 7 9 7^ R MIXED INC
Dekalb DKB 44-51 7 9 9 9 7 7 3* R T INC INC
Dekalb DKB 46-51 9 9 7 7 7 7 5* R S INC INC
Delta Grow 4840RR 3 9 7 7 5 3 3* R INC INC
Delta Grow 4860RR 9 9 7 9 3 1 5 R S INC INC
Delta Grow 4960RR 9 9 9 9 3 3 7 R T INC INC
Delta Grow 4970RR 9 9 7 9 1 3 7 R INC INC
Delta King 4461RR 7 9 9 9 7 3 3 R T INC INC
Delta King 4661 9 9 9 9 5 1 3 R S INC EXC
Delta King 4763RR 9 9 7 7 7 9 5 R T INC MIXED
Delta King 4866 9 9 7 9 5 9 3 R MIXED
Delta King 4868 9 9 7 9 7 9 5 R T INC INC
Delta King 4967RR 9 9 7 9 3 1 7 R S INC
Deltapine DP4331RR 7 7 7 7 7 3 3* R T INC MIXED
Deltapine DP4546RR 3 9 9 9 3 3 7 R EXC EXC
Deltapine DP4724RR 9 9 7 7 3 1 3* R S INC INC
Deltapine DP4933RR 9 9 7 9 9 1 5* R S INC INC
Dyna Gro 3443NRR 3 9 9 9 7 7 3* R T INC
Dyna Gro 3463NRR 9 9 9 3 7 3 9* R S EXC
Dyna Gro 3481NRR 9 9 9 7 3 1 7 R S INC INC
Dyna Gro 36M49 7 9 7 7 5 3 5 R INC
Garst 4612RR/N 9 9 9 7 3 1 3* R INC
HBK R4623 9 9 9 7 1 1 3* R T INC INC
HBK R4724 9 9 9 7 1 1 3* R MIXED INC
HBK R4924 9 9 7 3 5 1 3 R INC INC
Morsoy RT4480N 7 9 9 9 7 7 3* R T INC INC
Morsoy RT4993N 9 9 9 7 5 3 3 R T INC INC
MPV 4905nRR 3 9 7 7 7 1 3^ R INC
NK Brand S43-B1 9 9 7 3 7 1 R S MIXED EXC
NK Brand S49-Q9 9 9 7 9 3 3 5 MR T EXC EXC
Pioneer 94B73 9 9 9 9 1 1 5* R T INC INC
Pioneer 94M70 9 9 7 7 7 1 5* R T MIXED
Progeny 3900RR 3 9 9 9 5 1 3* R T INC INC
Progeny 4401RR 3 9 9 9 7 3 3* R T INC INC
Progeny 4804RR 3 9 7 9 5 1 3* R INC INC
Progeny 4949RR 9 9 9 9 1 1 7 R T INC MIXED
Southern States RT4902N 9 9 9 9 9 1 5^ R S INC INC
Southern States RT5130N 7 9 7 9 1 1 7^ R INC INC
Disease, Nematode and Herbicide Sensitivity Ratings for Soybean Cultivars, 2005
Disease / Nematode Ratings1 Pesticide Chloride6
Root2 Soybean Cyst3 Frogeye Stem Sudden Sensitivity Sensitivity
Knot Nematode Leafspot Canker Death Prop- Sulfen- Ratings
Variety Nematode 2 5 6 Syn. anil4 trazone5 2005 2004
Maturity Group IV
Terral TV48R14 9 9 7 9 1* 7 3* R INC INC
Terral TV49R12 9 9 7 9 1 1 9 R INC
USG 7434nRR 7 9 9 9 1 1 R INC
USG 7440nRR 3 9 7 7 7 7 3* R T INC INC
USG 7484nRR 3 9 9 7 7 3 5^ R INC
USG 7494nRR 7 9 9 9 7 1 3^ R INC
USG 7499nRR 9 9 9 9 9 1 3 R T INC INC
Maturity Group V
Armor 53-K3 7 9 9 7 7 1 7 R T INC INC
Armor 54-03 9 9 9 7 5* 7 3* R EXC EXC
Armor GP 513 9 9 9 9 1 1 9 R INC INC
Armor GP 530 9 9 9 9 3 3 7 R EXC MIXED
Asgrow AG5301 7 9 9 7 7 1 7 R T EXC MIXED
Asgrow AG5501 7 9 9 3 5 1 5 R S INC INC
Asgrow AG5605 9 9 9 9 7 9 3 R T EXC EXC
Asgrow AG5903 9 9 9 7 7 7 7 R T INC INC
Asgrow AG5905 9 9 7 7 7 9 5 MR EXC INC
Croplan RC5555 9 9 7 3 5 7 3^ R T EXC EXC
Croplan RC5972 9 9 7 9 3 9 5^ R T EXC MIXED
Delta Grow 5260RR 7 9 9 7 5 1 7 R T EXC INC
Delta Grow 5630RR 9 9 7 7 5 9 7 R T MIXED MIXED
Delta Grow 5650RR 9 9 9 7 3 9 7 MR T EXC MIXED
Delta Grow 5960RR 9 9 7 9 5 9 7 MR T EXC INC
Delta King 5161 9 9 9 9 3 1 9 R MIXED INC
Delta King 5366 7 9 9 7 3 9 5 R T EXC EXC
Delta King 5567 9 9 9 9 3 1 3 R EXC EXC
Delta King 55T6 9 9 7 3 3 9 5 R MIXED EXC
Delta King 5967 9 9 9 7 5 9 7 R T MIXED MIXED
Deltapine 5414RR 7 9 9 9 1 3 7 R S EXC EXC
Deltapine 5634RR 3 9 9 9 3* 7 5^ R T MIXED EXC
Deltapine 5808RR 9 9 9 9 3* 3 5^ R INC INC
Deltapine 5915RR 9 9 9 9 3 9 5 R S EXC MIXED
Dyna Gro 33B52 9 9 9 9 1 3 9 R MIXED MIXED
Dyna Gro 3535NRR 3 9 9 3 3 9 5 R T EXC MIXED
Dyna Gro 3562NRR 9 7 9 7 3 9 5 MR T MIXED MIXED
Dyna Gro 3583NRR 9 9 3 7 5 9 7 R T MIXED MIXED
Dyna Gro 36N57 9 7 9 9 3* 3 5 R EXC
Dyna Gro 38K57 9 9 9 7 3 9 5 R EXC EXC
*Denotes Seed Company Data
^Denotes Limited Data Available
1Soybean disease and nematode ratings were conducted by Drs. Kirkpatricl and Cartwright with support from the Arkansas Soybean Promotion Board. Disease ratings are characterized by the following scale: 1 = Resistant; 3 = Moderately Resistant; 5 = Moderately Susceptible; 7 = Susceptible; 9 = Very Susceptible. Additional soybean disease data can be accessed at the following website: http://comp.uark.edu/~avrtest/index.php?sb&content
2Root-knot nematode ratings refer to the Southern Root-knot Nematode, Meloidogyne incognita (see http://comp.uark.edu/~avrtest/index.php?sb&content for additional information on experimental methods.)
3Ratings for soybean cyst nematode were evaluated at the Southwest Research and Extension Center, Hope. Only races 2,5 and 6 are currently being evaluated. Information concerning other soybean cyst nematode races may be available from seed companies.
4Propanil (Propanil, Stam M4, etc.) injury at drift rates (0.25X rate) applies to V4-V5 soybeans. Ratings represent injury 24 days after application where R = <10% injury; MR = 10-20% injury; MS = 20-30% injury and S = > 30% injury.
5Sulfentrazone (Authority, etc.) tolerance ratings at 0.375 lb. a.i./A in greenhouse studies: T = Tolerant; I - Intermediate; S = Sensitive.
Disease, Nematode and Herbicide Sensitivity Ratings for Soybean Cultivars, 2005
Disease / Nematode Ratings1 Pesticide Chloride6
Root2 Soybean Cyst3 Frogeye Stem Sudden Sensitivity Sensitivity
Knot Nematode Leafspot Canker Death Prop- Sulfen- Ratings
Variety Nematode 2 5 6 Syn. anil4 trazone5 2005 2004
Maturity Group IV
6Chloride Sensitivity: INC = Includer; EXC = Excluder; MIXED = Mixed population (Excluder varieties accumulate chloride and restrict it to the roots. Includer varieties accumulate chloride throughout the plants. Varieties with a mixed population have both includer and excluder plants. Don't assume that high soluble salts constitute a chloride ion problem. Chloride levels should be determined by irrigation water tests and/or plant tissue analysis.
7Soybean plant height reported in inches and is an average of all locations.
8Soybean lodging is an average of all locations and is reported using the following criteria: 1 = all plants erect; 2 = all plants slightly leaning or a few plants down; 3 = all plants moderately leaning or 25-50% of the plants are down; 4 = all plants considerably leaning or 50-80% of the plants are down; 5 = all plants down.
9Soybean shattering is an average of all locations and is reported by using the following criteria: 1 = no shattering; 2 = 1-3% shattered; 3 = 4-8% shattered; 4 = 9-19% shattered; 5 = 20% or more shattered.
10Days to maturity represent the average (of all locations) number of days from planting until 80% of the soybeans in the plot were thought to be mature.
Acknowledgements are extended to Marilyn McClelland, Joshua Dunn, Dick Oliver, Bob Riggs, John Rupe, Pengyin Chen and a host of other University of Arkansas Division of Agriculture workers for their significant contributions to this update.