|
|
||||||||
a University of Missouri-Delta Center, P. O. Box 160, Portageville, MO 63873
b Dep. of Agronomy, 210 Waters Hall, University of Missouri, Columbia, MO 65211
c USDA-ARS, 605 Airways Blvd., Jackson, TN, 38301
* Corresponding author (shannong{at}missouri.edu)
S99-3181 soybean [Glycine max (L.) Merr.] (Reg. no. CV-469, PI 635039) was developed by the Missouri Agricultural Experiment Station at the University of Missouri–Delta Center, Portageville, MO, and released 6 June 2003 because of its potential use in the natto market. It has shatter resistance, broad resistance to soybean cyst nematode (SCN, Heterodera glycines Ichinohe), and resistance to southern root knot nematode [Meloidogyne incognita (Kofoid & White) Chitwood].
S99-3181 is an F5 single plant selection composited in the F6 generation from the cross S93-1344 x Camp made in 1995. S93-1344 is from A6785 x Hartwig (Shannon, 1989; Anand, 1992). Camp is a small-seeded natto cultivar released by the Virginia Agricultural Experiment Station, Virginia Polytechnic Institute and State University, Blacksburg, VA, from the cross of Essex x an unknown Glycine soja Siebold & Zucc. plant introduction (Glenn Buss, personal communication). The F1 generation was grown in Puerto Rico. The F2 through the F5 generations were advanced by the bulk pod method in which seed from a single pod per plant is advanced with each generation of inbreeding. Only the smallest seed, selected by saving seed that would pass through a 3.6-mm round-holed sieve, were planted in the F3, F4, and F5 generations. The F2 and F3 generations were advanced in an HG type 2- (formerly race 5) (Niblack et al., 2002) SCN-infested nursery at the University of Missouri Rhodes Farm, Clarkton, MO, and in Puerto Rico, respectively. The F4 and F5 generations were grown at Portageville. Single F5 plants were harvested and individually screened in the greenhouse against a mixture of SCN HG types 2-, 0-, and 1.3- (formerly races 3, 5, and 14). The SCN resistant F6 plant rows were grown in the field at Portageville in 1999. Row S99-3181 was uniform for agronomic traits and was bulked for yield tests. S99-3181 was screened in the greenhouse for resistance to individual SCN HG types (Niblack et al., 2002) 2-, 1.2-, 0-, 2- and 1.3- (races 1, 2, 3, 5, and 14) at Jackson, TN, Columbia, MO, and Portageville, MO.
S99-3181 is mid-group V maturity (relative maturity 5.6). In University of Missouri–Delta Center advanced research trials from 2001 to 2002 in 10 environments, yields were similar to Hutcheson (Buss et al., 1988) on SCN-noninfested loam soils (four sites) and 20% more on SCN-infested soils (two sites) with a mean yield over six locations of 3113 kg ha–1 versus 2938 kg ha–1 for Hutcheson. However, in four sharkey clay (Vertic Haplaquept, very fine montmorillonitic, thermic) sites in the Portageville, MO region, yields of S99-3181 averaged 9% less than Hutcheson with a mean yield over four environments of 2787 kg ha–1 versus 3047 kg ha–1 for Hutcheson. It has been superior in yield to the shatter prone group V natto cultivar B3 from Blue Horizon, Inc., 851 Burlway Road, Burlingame, CA (2980 kg ha–1 versus 2060 kg ha–1 averaged over ten environments). S99-3181 is determinate in growth habit and has averaged 5 cm taller (S99-3181 averaged 81 cm) and 2 d earlier in maturity and has lodged (1.6 versus 1.2 on a scale of 1 = no lodging to 5 = severe lodging) slightly more than Hutcheson. Shatter resistance three weeks after maturity for S99-3181 was comparable to Hutcheson with a score of 1.0 (no shattering) and superior to B3 with a score of 5.0 (>50% seed shattered).
S99-3181 has white flowers, gray pubescence, and tan pods at maturity. Seed are shiny yellow with buff hila averaging 93 mg–1 seed versus 130 mg seed–1 for Hutcheson and 66 mg–1 seed for B3. Seed protein and oil content on a dry weight basis have averaged 405 g kg–1 and 200 g kg –1, respectively, versus 425 g kg–1 and 192 g kg–1 for B3. S99-3181 is resistant to SCN HG types 2- (Race 1), 1.2- (Race 2), 0- (Race 3), 2- (Race 5) and 1.3- (Race 14). SCN female indices (Niblack et al., 2002) for each HG type (race) above were 3, 0, 0, 20, and 7, respectively, versus 100 for the susceptible Lee 74 (Caviness et al., 1975). It has moderate resistance to southern root knot nematode based on an average root knot gall score (1 = no galls to 5 = severe galling) over four infested fields during 2001 and 2002 of 2.2 versus 2.0 for the resistant check Manokin (Kenworthy et al., 1996) and 4.5 for Hutcheson (susceptible). S99-3181 is susceptible to stem canker [caused by Diaporthe phaseolorum (Cooke and Ellis) Sacc. var. meridionalis F. A. Fernandez] and phytophthora root rot (caused by Phytophthora sojae M. J. Kaufmann & J. W. Gerdemann).
S99-3181 was licensed by the Missouri Agricultural Experiment Station to Missouri Premium Varieties, Concordia, MO, for use as a natto cultivar. Breeder seed of S99-3181 will be maintained by the University of Missouri Agricultural Experiment Station. Small quantities of seed may be obtained for research purposes, including hybridization and cultivar development, for at least 5 yr by writing to the corresponding author.
NOTES
Accepted for publication July 31, 2004.
REFERENCES
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||