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REGISTRATIONS OF GERMPLASMS

Registration of S97-1688 Soybean Germplasm Line High in Protein Content and Resistant to Soybean Cyst Nematode

^a Dep. of Agronomy, 210 Waters Hall, University of Missouri, Columbia, MO 65211
^b University of Missouri-Delta Center, P.O. Box 160, Portageville, MO 63873
^c USDA-ARS, 605 Airways Blvd., Jackson, TN, 38301
^d USDA-ARS, P.O. Box 345, Stoneville, MS 38776

^* Corresponding author (shannong{at}missouri.edu)

Soybean [Glycine max (L.) Merr.] germplasm line ‘S97-1688’ (Reg. no GP-300, PI 633736) was developed at the Delta Center of the University of Missouri, Portageville, MO, and released by The Missouri Agricultural Experiment Station. This line has value as a parent because of its competitive yield potential, higher protein content and broad resistance to populations of races of soybean cyst nematode (SCN), Heterodera glycines Ichinohe.

S97-1688 originated as an F₄ single plant selection composited in the F₅ generation from the cross S91-1381 x Hartz 5810. S91-1381 is a selection from Hartz 5370 x ‘Hartwig’ (Anand, 1992). H5370 is a selection from D70-3115 x ‘Forrest’ (Hartwig and Epps, 1973). D70-3115 is a sib of ‘Centennial’ (Hartwig and Epps, 1977). Hartz 5810 is a selection from Hartz 5164 x F₁ (Asgrow brand ‘A5474’ x PI 90763) (Shannon and Schillinger, 1989). Hartz 5164 is from ‘Bedford’ x (D70-3115 x 37-3-16) (Hartwig and Epps, 1978). The line 37-3-16 is a selection from R72-2647⁽²⁾ x (Forrest sib x PI88788). R72-2647 is a SCN race 1 and 3 resistant ‘Lee’ type (Hartwig, 1958) derived from the cross R66-1516 x (Forrest sib x PI 88788). R66-1516 is from Lee⁽⁵⁾ x FC33243. The F₁ generation was grown in Puerto Rico in 1994. The F₂ and F₃ generations were advanced in 1995 by modified single seed descent in the cyst nursery, a SCN race 5 infested field at the University of Missouri Rhodes Farm, Clarkton, MO, and in Puerto Rico, respectively. The F₄ was grown again in the cyst nursery in 1996. Single plants were harvested and individually screened in the greenhouse against a mixture of SCN races 2, 3, and 5. SCN resistant F₅ plant rows were grown in the field at Portageville in 1997 and single rows uniform for agronomic traits were bulked for yield tests. S97-1688 was screened for resistance to individual SCN races 1, 2, 3, 5, and 14 at Portageville and Columbia, MO, as well as Jackson, TN. S97-1688 is mid-group V maturity (RM5.6), about 1 d earlier than ‘Hutcheson’ (Buss et al., 1988). It was tested in Missouri from 1998 to 2000 and was evaluated in the Uniform Group V Soybean Tests-Southern States from 1999 to 2000 (Tyler, 1999; Paris and Shelton, 2000). In 25 tests, yield of S97-1688 was 2% less and plants averaged 8 cm taller than Hutcheson. In addition, it was evaluated in the Regional Group V High Protein Test in 2000 (Graef, 2000). In six tests, yield of S97-1688 averaged 6% more and plants averaged 9 cm taller than Hutcheson. S97-1688 has white flowers, tawny pubescence, and tan pods at maturity. Seeds are shiny yellow with black hila. Seed size averaged 11.5 mg seed^–1 versus 13.0 mg seed^–1 for Hutcheson (Tyler, 1999; Paris and Shelton, 2000). Seed composition on a dry weight basis averaged 445 g kg ^–1 protein and 185 g kg^–1 oil compared to 419 g kg ^–1 protein and 205 g kg^–1 oil for Hutcheson (Tyler, 1999; Paris and Shelton, 2000). S97-1688 is resistant to populations of SCN races 1, 2, 3, 5, and 14. Resistance to SCN traces to PI 437654 through Hartwig. Therefore, S97-1688 could have resistance to other populations of SCN including races 4, 6, 9, and 12, but it has not been tested. S97-1688 is moderately susceptible to sudden death syndrome [caused by Fusarium solani (Mort.) Sacc. f. sp. glycines Roy]. It is susceptible to root knot nematodes (Meloidogyne spp.) and to stem canker [caused by Diaporthe phaseolorum (Cooke and Ellis) Sacc. var. meridionales F.A. Fernandez], and Soybean mosaic virus.

Small quantities of seed may be obtained from the corresponding author for at least 5 yr.

NOTES

Registration by CSSA.

Accepted for publication August 31, 2003.

REFERENCES

• Anand, S.C. 1992. Registration of Hartwig soybean. Crop Sci. 32:1069–1070.[Free Full Text]
• Buss, G.R., H.M. Camper, Jr., and C.W. Roane. 1988. Registration of Hutcheson soybean. Crop Sci. 28:1024–1025.[Free Full Text]
• Graef, G.L. 2000. 2000 Regional high protein test report group II–V. Department of Agronomy, University of Nebraska, Lincoln, NE.
• Hartwig, E.E., and J.M. Epps. 1973. Registration of Forrest soybeans. Crop Sci. 13:287.
• Hartwig, E.E., and J.M. Epps. 1977. Registration of Centennial soybeans. Crop Sci. 17:979.[Free Full Text]
• Hartwig, E.E. 1958. Registration of Lee soybeans. Agron. J. 50:690–691.[Free Full Text]
• Hartwig, E.E., and J.M. Epps. 1978. Registration of Bedford soybeans. Crop Sci. 18:915.[Free Full Text]
• Paris, R.L., and G.W. Shelton. 2000. Uniform soybean tests-Southern states 2000. USDA-ARS, Stoneville, MS.
• Shannon, J.G., and J.A. Schillinger. 1989. Registration of A5474 soybean. Crop Sci. 29:1091.[Free Full Text]
• Tyler, J.M. 1999. Uniform soybean tests-Southern states 1999. USDA-ARS, Stoneville, MS.

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