Roundup Ready soybean varieties, many with new sources of SCN resistance, make up the majority of growers' newest choices for the 2004 planting season.

The following information comes from breeders and agronomists at universities, USDA-ARS and private companies. But don't confine yourself to this list; there's more data available from seed company representatives and university and independent yield trials.

The following pureline variety choices are divided by maturity group, moving from early to mid- to late maturities within each group. Note that all the varieties listed are Roundup Ready except, of course, those boxed and labeled as conventional.

Disease abbreviations are as follows: phytophthora root rot (PRR), soybean cyst nematode (SCN), sudden death syndrome (SDS), sclerotinia white mold (SWM) and brown stem rot (BSR). Iron deficiency chlorosis is shortened to IDC. Note, too, that protein and oil data are based at 13% moisture.

Roundup Ready

Group OO

Thunder Seed — 24004RR (mid) shows:

  • Very good IDC tolerance and PRR field tolerance.

  • Excellent emergence, standability.

  • Medium plant, intermediate to bush.

Peterson Farms — 04007RR (late) has:

  • Excellent IDC resistance, adaptability for rows, solid seeding.

  • Excellent emergence, standability.

  • High yield potential, especially for Northern areas.

Group O

Stine — S0136-4 Brand (early) offers:

  • Excellent emergence, very good standability.

  • Very good PRR, IDC tolerance.

  • Moderately tall plant height.

  • Protein, 34%; oil, 19.3%.

Dekalb — DKB07-52 (mid) exhibits:

  • High yield potential.
  • Very good emergence.
  • Excellent standability.

Gold Country Seed — GCS 2305RR (mid) features:

  • Excellent emergence, standability.

  • Good performance south of adapted maturity zone.

  • Recovery from medium IDC environments.

Peterson Farms — 0305RR (mid) has:

  • Excellent yield potential.

  • Medium-tall, intermediate plant with average IDC resistance.

  • All-around performance, yields with longer-season varieties.

Thunder Seed — 605RR (mid) offers:

  • Excellent IDC tolerance.

  • Rps1k gene for PRR resistance, plus excellent PRR field tolerance.

  • Excellent emergence, lodging, shatter resistance.

  • Protein, 37%; oil, 18.1%.

Thunder Seed — 2405RR (mid) shows:

  • High yields, good IDC tolerance.

  • Intermediate plant with excellent emergence.

  • Very good stress tolerance, standability, shatter resistance.

Kruger — K-090 RR (late) provides:

  • Replacement for K-070 RR, moves south very well.

  • Excellent SWM and stress tolerance, very good iron efficiency.

  • Use on any but compacted, poorly drained soils.

Peterson Farms — 0409RR (late) has:

  • Medium plant, goes south and west very well.

  • IDC resistance adequate for all but worst areas.

  • Terrific yields; great emergence, standability and performance in row, solid seeding.

Group I

Croplan Genetics — RT1004 (early) exhibits:

  • High yields, excellent standability for drilling.

  • Rps1k gene for PRR resistance, excellent PRR field tolerance.

  • Medium height, avoid soil types with high pH and/or salt levels.

Dairyland Seed — DSR-132/RR (early) features:

  • Excellent PRR field tolerance and Rps1c resistance.

  • Excellent BSR resistance, excellent IDC and SWM tolerance.

  • High yields; excellent standability, emergence, shatter resistance, drydown.

Gold Country Seed — GCS 7413NRR (early) offers:

  • Excellent IDC, BSR, SWM tolerance. Handles stress environments.

  • Medium-height, intermediate plant.

  • Outstanding yields with SCN or non-SCN varieties.

Jung Seed — 8124RR (early) provides:

  • Excellent yield potential.
  • Superior lodging resistance.
  • Good choice for min-till systems.

Gold Country Seed — GCS 7414RR (mid) exhibits:

  • Rps1k gene for PRR resistance, excellent IDC rating and standability.

  • Very high yield potential in stressed or high-yield environments.

  • Protein, 39.1%; oil, 17.1%.

Stine — S1562-4 Brand (mid) offers:

  • Excellent emergence.

  • Very good PRR tolerance, good IDC tolerance, moderate SCN resistance.

  • Protein, 35.2%; oil, 19%.

Advantage Seed — ADV 1883R (late) provides:

  • Excellent yield for a late Group I.
  • Excellent PRR, BSR tolerance.
  • Very tall plant with good standability.

Advantage Seed — ADV 1952R (late) exhibits:

  • Excellent standability, higher protein than most varieties.

  • Resistance to PRR and SWM.

  • Some resistance to SCN race 3.

Golden Harvest — H-1961RR Brand (late) has:

  • Good early vigor and emergence, great for no-till.

  • Rps1k gene for multi-race PRR resistance; excellent BSR, SWM tolerance.

  • Very good IDC tolerance, good standability, extremely high yields in productive soils.

Kaltenberg Seeds — KB186RR (late) features:

  • Great adaptability for no-till.

  • Resistance to BSR and SCN race 3; moderate resistance to SCN race 14.

  • Strong PRR field tolerance.

  • Protein, 36.5%; oil, 18.3%.

Kruger — K-195+ RR/SCN (late) has:

  • Resistance to SCN, Rps1k gene for PRR protection.

  • Very good iron efficiency, adaptability to wide range of soils.

  • Excellent standability, moderate lateral branching.

ProfiSeed — PS 4204CN RR (late) features:

  • Excellent SCN race 3, 14 resistance.

  • Rps1k gene for PRR resistance.

  • Very good BSR, SWM tolerance.

  • Higher yields than PS 4225CN by 4-5 bu./acre.

Group II

AdAdvantage Seed — ADV 2214R (early) shows:

  • Very high yields; adapability to many soils, planting conditions.

  • Excellent PRR tolerance, resistance to BSR, high IDC tolerance.

  • Consistency year after year.

AgVenture — AV 24J3RR (early) has:

  • Top yields, adaptable to varied soils.

  • Excellent BSR, PRR, SWM resistance.

  • Good performance even under moderate SCN pressure.

  • Medium height and width, light-tawny plants.

Asgrow — AG2107 (early) features:

  • High yield potential, very good IDC tolerance.

  • Resistance to race 3 SCN, multi-gene PRR protection.

  • Excellent emergence, very good standability.

  • Protein, 35.3%; oil, 20.4%.

Croplan Genetics — RC2020 (early) features:

  • Rps1k gene for PRR resistance; excellent PRR field tolerance; excellent BSR, SWM tolerance; race 3 SCN resistance.

  • Medium plant, great standability.

  • Excellent IDC tolerance.

Crow's — C2015R (early) offers:

  • SCN race 3 resistance, moderate resistance to race 14, excellent SWM and IDC tolerance, Rps1k gene for PRR resistance.

  • Excellent emergence, stress tolerance.

  • Medium-tall plant, can be planted into mid-Group II areas.

  • Protein,34.1%; oil, 20.7.

Crow's — C2317R (early) exhibits:

  • Above-average IDC tolerance. Handles moderate levels of SCN.

  • Very strong emergence, stress tolerance; resistance against BSR.

  • Protein, 35.7%; oil, 18.3%.

Dairyland Seed — DSR-234/RR (early) offers:

  • Excellent PRR and IDC tolerance, Rps1k gene for PRR resistance, excellent BSR resistance.

  • Higher yields than competitors and DSR-221/RR in company research trials.

  • Very good SWM protection, widely adapted to diverse soils.

Dekalb — DKB20-52 (early) shows:

  • Very high yield potential.

  • Resistance to race 3 SCN and multi-race PRR, very good IDC tolerance.

  • Excellent standability, emergence.

  • Protein, 34.9%; oil, 20.3%.

Great Lakes Hybrids — GL2009RR (early) features:

  • Fast emergence, excellent yield.

  • SCN resistance, Rps1k gene for PRR resistance, good IDC rating.

  • Protein, 34.1%; oil, 20.7%.

Growmark — FS HiSOY(r) HS 2036 (early) exhibits:

  • SCN resistance; Rps1k gene for PRR resistance; good IDC, SWM, BSR and SDS field resistance.

  • Excellent emergence, standability; good for early planting, no-till.

  • Protein, 34.1%; oil, 20.7%.

Jung Seed — 8220RR (early) features:

  • Excellent emergence for con-till systems. Handles stress well.

  • Solid defensive package with well above-average tolerance to SWM, BSR and IDC.

  • Rps1k gene for PRR resistance.

Jung Seed — 8222RR (early) offers:

  • Dominating yields in company EX trials the past two years.

  • Rps1k gene for PRR resistance.

  • Aggressive emergence for con-till systems.

Kaltenberg Seeds — KB234RR (early) features:

  • Strong SCN resistance to races 1, 2, 3, 5 and 14; good BSR resistance.

  • Very good PRR field tolerance.

  • Protein, 34.8%; oil, 19.1%.

Latham — E2038R (early) provides:

  • Rps1k gene for PRR resistance, excellent SCN resistance, very good IDC tolerance.

  • Replacement for L-527RRN.

  • Extremely high yields, new genetics.

Latham — 2136R (early) shows:

  • Extremely high yields, even more than L-497RR; excellent emergence, standability.

  • Very good PRR field tolerance, rivals L-497RR for IDC tolerance.

  • Protein, 35.4%; oil, 19.2%.

Mycogen Seeds — Atlas 5N202RR (early) features:

  • A solid replacement for 5B210NRR, with better IDC tolerance and improved standability.

  • Strong resistance to SCN, Rps1k gene resistance to PRR.

  • Very good tolerance to SWM, SDS.

Mycogen Seeds — Atlas 5B220RR (early) exhibits:

  • Excellent emergence and high yields.

  • Excellent tolerance to IDC, BSR, SWM; adaptability to all row widths.

  • Medium-tall plants with medium-bushy canopy.

Ottilie RO — RO8214RR (early) has:

  • Rpslk gene for PRR resistance.

  • Excellent IDC score, exceptional SWM and BSR tolerance.

  • Excellent emergence and stress tolerance, very good standability.

Pioneer — 92M30 (early) features:

  • Excellent yield potential, emergence, standability.

  • Excellent SCN race 3 resistance, strong BSR tolerance.

  • Protein, 35.8%; oil, 18.8%.

ProfiSeed — PS 22J1 RR (early) has:

  • High yields for Northern IA and Southern MN growers, with higher yield potential than PS 4215 RR.

  • Potential to withstand moderate IDC pressure.

ProfiSeed — PS 4203 HCN RR (early) offers:

  • SCN resistance with alternative sources of resistance.

  • Help in managing SCN race shifting.

  • Very good IDC and PRR tolerance.

Syngenta — NK Brand S20-G4 (early) provides:

  • Good IDC and stress tolerance.

  • Rps1c gene for PRR resistance, good tolerance to BSR and SDS.

  • Protein, 33%; oil, 19%.

Syngenta — NK Brand S21-D2 (early) has:

  • Rps1c PRR resistance with good field tolerance.

  • Good resistance to BSR and SWM, good IDC tolerance.

  • Excellent lodging, shatter resistance.

  • Protein, 34%; oil, 19%.

Asgrow — AG2405 (mid) shows:

  • Resistance to race 3 SCN and multi-race PRR; very good BSR, SWM tolerance.

  • Excellent emergence, very good standability.

  • Protein, 36.6%; oil, 19.7%.

Croplan Genetics — RC2504 (mid) shows:

  • Eastern genetics, with excellent SCN defense, excellent PRR field tolerance and BSR tolerance, race 3 SCN resistance.

  • Tall plant, great standability.

  • Very good performance in defensive soils with higher clay content and pH.

Great Lakes Hybrids — GL2525RR (mid) features:

  • GL2334, GL2451 breeding background.

  • High yield with good BSR, SWM, IDC and PRR scores.

  • Protein, 36.4%; oil, 18.7%.

Growmark — FS HiSOY(r) HS 2635 (mid) exhibits:

  • High yields, excellent emergence, very good PRR field tolerance.

  • Good standability, well-adapted to all row widths.

  • Excellent stress tolerance.

Latham — E2620RX (mid) offers:

  • Excellent SCN resistance, very good PRR field tolerance.

  • Excellent emergence, standability.

  • Better-than-average IDC tolerance.

Midwest Seed Genetics — GR 2627 (mid) features:

  • Very good SDS tolerance, high yields. Handles stress well.

  • Very good standability, adapts well across all row widths.

  • Protein, 34.7%; oil, 19.4%.

NC+ — 2A44RR (mid) provides:

  • High yields, consistent performance for Eastern and Western growers.

  • Rps1k gene for PRR resistance on poorly drained soils.

  • Above-average BSR scores, SWM, SDS and IDC tolerance.

NC+ — 2A73RR (mid) exhibits:

  • Excellent yield, plant type similar to NC+ 2A92RR.

  • Rps1k gene for PRR resistance.

  • Adaptability for all row widths, to Eastern and Western growing areas.

Ottilie RO — RO8248RR (mid) shows:

  • Very good PRR field tolerance; excellent emergence, stress tolerance.

  • Excellent yields under varying conditions, very good standability, adapts to all row widths.

  • Very good SWM, BSR, IDS tolerance.

Pioneer — 92M70 (mid) shows:

  • Outstanding yield potential.

  • Excellent SCN race 3 resistance, strong BSR tolerance.

  • Good IDC tolerance, PRR field tolerance.

  • Protein, 34.6%; oil, 19.6%.

Wilson Seeds — 2632RR (mid) offers:

  • Excellent yield, SDS tolerance, above-average PRR field tolerance.

  • Excellent emergence, very good standability, adapts to all row widths.

  • Protein, 34.8%; oil, 19.4%.

Dekalb — DKB28-52 (late) features:

  • High yield potential; excellent standability, emergence.

  • Multi-race PRR resistance, excellent BSR tolerance.

  • Protein, 34.7%; oil, 19.9%.

Garst — 2812 RR/N (late) features:

  • BSR, SCN resistance with high tolerance to SDS.

  • Rps1c gene for PRR resistance.

  • Medium-high to high seeding rates recommended in wider row spacings.

  • Protein, 36.8%; oil, 17.6%.

Golden Harvest — H-2811RR Brand (late) has:

  • Rps1c gene for multi-race PRR resistance, excellent field tolerance.

  • Superior drought stress tolerance, susceptibility to SDS, good IDC tolerance.

  • Very high yield potential in high-fertility fields.

Great Lakes Hybrids — GL2819RR (late) provides:

  • Excellent yield, good height and standability.

  • SCN protection, Rps1c gene for PRR resistance, very good BSR, SWM scores.

  • Protein, 37.1%; oil, 18.4%.

Kruger — K-299 RR/SCN (late) shows:

  • SDS, BSR, PRR tolerance; SCN resistance.

  • Good standability, adaptability to wide range of soil types.

  • Eastern genetic predisposition.

LG Seeds — C2883RR (late) offers:

  • High-yields, medium-height plant.

  • Rps1k gene for PRR resistance; good tolerance to BSR, IDC, SWM, SDS.

  • Excellent emergence, vigor, standability; great stress tolerance.

NC+ — 2A93RR (late) provides:

  • Excellent tolerance to high-pH soils, excellent emergence in no-till.

  • Good standability, upright branching plant adapts to all row widths.

  • Rps1k PRR resistance, above-average SDS tolerance.

Ottilie RO — RO8294RR (late) shows:

  • Rpslk gene for PRR resistance; excellent SDS tolerance; very good SWM, BSR, IDC tolerance.

  • Excellent emergence, stress tolerance; very good standability.

  • Medium-height plant adapts to all row widths.

Stine — S2900-4 Brand (late) exhibits:

  • Excellent emergence.
  • Very good PRR tolerance.
  • Protein, 35.3%; oil, 19.7%.

Syngenta — NK Brand S28-L9 (late) shows:

  • SCN resistance (PI88788), good tolerance to SDS, Rps1c PRR resistance with moderate field tolerance.

  • Very good stress tolerance, excellent shatter resistance.

  • Protein, 36%; oil, 17%.

Group III

Asgrow — AG3202 (early) features:

  • High yield potential.

  • Resistance to race 3 SCN and multi-race PRR, very good IDC tolerance.

  • Protein, 35.4%; oil, 19.4%.

Crow's — C3117R (early) shows:

  • Excellent PRR field tolerance; resistance with Rps1c gene, BSR and SCN race 3; moderate resistance to SCN race 14.

  • Excellent emergence even in no-till.

  • Protein, 36.5%; oil, 18.7%.

Dairyland Seed — DSR-326/RR (early) exhibits:

  • High SCN resistance (PI88788), high PRR tolerance plus Rps1k resistance.

  • Excellent yields, standability, emergence, drydown.

  • Excellent SDS tolerance, very good BSR tolerance, good SWM tolerance.

Golden Harvest — H-3281RR Brand (early) features:

  • SCN resistance; Rps1k gene for multi-race PRR resistance.

  • Excellent seed quality, emergence.

  • Medium height, good standability, not for very droughty soils.

Growmark — FS HiSOY(r) HS 3236 (early) offers:

  • SCN resistance, Rps1c gene for PRR resistance, good PRR and SDS field tolerance.

  • High yields in high-performance areas and narrow rows; very good emergence, standability.

  • Protein, 35.2%; oil, 20.7%.

LG Seeds — C3322NRR (early) has:

  • Medium-tall plant with excellent yields, even on non-cyst-infested soils.

  • Resistance to SCN, very good SDS tolerance, and PRR Rps1k gene resistance.

  • Adaptability to most row widths and stress-prone soils.

Midwest Seed Genetics — GR 3131 (early) features:

  • Resistance to BSR and SCN race 3, moderate resistance to race 14, PRR Rps1c gene resistance, average SDS tolerance.

  • Excellent emergence, very good standability.

  • Protein, 36.5%; oil, 18.7%.

Mycogen Seeds — Atlas 5N327RR (early) offers:

  • An SCN-resistant replacement for B335RR.

  • Good performance, particularly on drilled ground or in narrow rows.

  • Very good protection against PRR and SDS.

AgVenture — AV 34J1NRR (mid) has:

  • Yield levels comparable to late Group III varieties, but earlier maturing.

  • Rps1k gene resistance to PRR, very good SDS tolerance.

  • SCN race 3 resistance, moderate resistance to race 14.

Kaltenberg Seeds — KB 354RR (mid) offers:

  • Top yields, excellent shatter resistance.

  • Moderate SCN resistance to races 1 and 3.

MFA — Morsoy RT 3622N (mid) has:

  • Very good PRR, charcoal rot field tolerance; good BSR and IDC field tolerance.

  • Very good performance in all row spacings, soil types, heavy clay soils.

  • Excellent frogeye leaf spot field tolerance.

Wilson Seeds — 3790RR (mid) shows:

  • Moderate resistance to SCN races 3 and 14, above-average BSR tolerance.

  • Good standability; very good stress tolerance, emergence.

  • Protein, 37.4%; oil, 18.4%.

Garst — 3824 RR/N (late) features:

  • Medium-height, medium-bushy plant.

  • Rps1c gene resistance to PRR, SCN race 3 resistance.

  • Protein, 34.4%; oil, 19%.

LG Seeds — C3944NRR (late) shows:

  • Medium-tall plant, high yield potential, good standability.

  • Resistance to SCN, Rps1c gene for PRR resistance, very good SDS tolerance.

  • Good performance under stress, on marginal soils.

MFA — Morsoy RT 3712N (late) has:

  • Very good performance in all row spacings and high-fertility soils.

  • Excellent emergence, great for no-till.

  • Good SCN field tolerance; very good field tolerance to frogeye, charcoal rot and IDC.

Pioneer — 93M90 (late) exhibits:

  • Exceptional yield potential.

  • Solid resistance to SCN race 3, good SDS tolerance, strong PRR field tolerance, excellent BSR resistance.

  • Protein, 35.7%; oil, 19%.

Group IV

MFA — Morsoy RT 4402N (mid) exhibits:

  • Very good charcoal rot, SDS and SCN field tolerance.

  • Medium-height, bushy plant; performs very well in high-yield environment.

  • Excellent field tolerance to frogeye.

Midwest Seed Genetics — GR 4752 (mid) features:

  • Resistance to SCN race 3, moderate resistance to race 14.

  • Above-average SDS tolerance.

  • Excellent standability, emergence, stress tolerance; adapts well to all row widths.

Conventional

Group II

AgVenture — AV 28JON (late) features:

  • Narrow canopy with very good standability, high protein levels.

  • Strong emerging plants with excellent stress tolerance.

  • Moderate SCN race 3 and 14 protection.

Garst — 2918 (late) exhibits:

  • Top yields.
  • Good oil content.
  • Protein, 34.4%; oil,18.5%.

Group III

Ohio State University/OARDC — Dilworth (early) features:

  • Exceptional yield potential.

  • Rps1k and Rps3a genes for PRR resistance, moderately susceptible to BSR, SCN susceptible.

  • Shatter resistance, excellent emergence, good standability.

  • Protein, 36%; oil, 18%.