Gregory E. Bell

Wayne W. and Jean Huffine Endowed Professor of Turfgrass Science  Ph.D. & M.S. - Ohio State University Address: Horticulture and Landscape Architecture Department, 358 AG Hall, Stillwater, OK 74078- 6027 Phone: 405-744-6424 Email: greg.bell@okstate.edu  Resume (pdf) Teaching Activities: Dr. Bell currently teaches turfgrass management, an introductory turfgrass course for turf majors and non-majors, turfgrass science, an advanced course focusing on turfgrass physiology and ecology, and personnel and financial management for horticulture. Students in these classes gain knowledge in plant systems, plant management, and business management skills that provide the basis for sound decision-making in the field.

Research Activities: Greg is involved in a variety of research projects focusing on turfgrass physiology and management systems. The climate at Oklahoma State presents unique opportunities to study both warm-season and cool-season grasses. Dr. Bell and Dr. Dennis Martin work closely with several other investigators to provide research that addresses both national and regional turfgrass concerns. Dr. Bell's primary research objective is to investigate connections between basic plant physiology and applied management systems that help turfgrass field practitioners maintain healthy, aesthetically pleasing turf and uniform playing surfaces with minimal environmental impact.

Selected Publications:
Bell, G.E., D.L. Martin, K.J. Koh, and H.R. Han. 2009. Comparison of Turfgrass Visual Quality Ratings with Ratings Determined Using the GreenSeeker Handheld Optical Sensor. Hort Technol. 19:309-316.
Bell, G.E. and X. Xiong. 2008. The history, role, and potential of optical sensing for practical turf management. pp. 641-658. M. Pessarakli (ed.) Handbook of turfgrass management and physiology. CRC Press,  Boca Raton, FL.
Bell, G.E. and J.Q. Moss. 2008. Management practices that reduce runoff transport of nutrients and pesticides from turfgrass. p. 133-150. In M. Nett, A.M. Petrovic, M.J. Carrol, and B.P. Horgan (ed.) The Fate of Turfgrass Nutrients and Plant Protection Chemicals in the Urban Environment. Symposium Series no. 997, American Chemical Society, Oxford University Press, Oxford, England.
Xiong, X.*, G.E. Bell, J. B. Solie, M.W. Smith, and B. Martin. 2007. Bermudagrass seasonal responses to n fertilization and irrigation detected using optical sensing. Crop Sci. 47:1603-1610.
 

Dennis L. Martin

• Professor, Extension Turfgrass Specialist
• Address: Horticulture and Landscape Architecture Department, 358 AG Hall, Stillwater, OK 74078- 6027
• phone: 405-744-5419
• email: Dennis.L.Martin@okstate.edu

Extension Activities:  Development of formal suggestions for turfgrass selection, establishment, maintenance and pest control practices on golf courses, sod farms, athletic fields and commercial grounds in Oklahoma.  Delivery of turf extension programming information to commercial and professional turf managers through a state-wide turf conference, workshops, and other printed and audio/visual media. Don't forget to visit the Turf Program Home Page.

2004 Research

Broadleaf Herbicide Demonstration for White Clover Control, Dennis Martin, Turf Extension Specialist and Holly Compton, Turf Extension Assistant, Oklahoma State University, Stillwater.

Peer Reviewed Journal Articles, 2000 to date:

• F.B. Iriarte, H.C. Wetzel III, J.D. Fry, D.L. Martin, and N.A. Tisserat. Genetic Diversity and Aggressiveness of Ophiosphaerella korrae, a Cause of Spring Dead Spot of Bermudagrass. 2004. Pl. Dis. 88:1341-1346.
• Anderson, J.A., C.M. Taliaferro, and D.L. Martin.  2002.  Freeze tolerance of bermudagrasses: vegetatively propagated cultivars intended for fairway and putting green use, and seed-propagated cultivars.  Crop Sci. 42:975-977.
• Anderson, M.P., C.M. Taliaferro, D.L. Martin and C.A. Anderson. 2001. Comparative DNA Profiling of U-3 Turf Bermudagrass Strains. Crop Sci. 41:1184-1189.
• Bell, G.E., D.L. Martin, R.M. Kuzmic, M.L. Stone, and J.B. Solie. 2000. Herbicide tolerance of two cold-resistant bermudagrass (Cynodon spp.) cultivars determined by visual assessment and vehicle-mounted optical sensing. Weed Technol. 14:635-641.
• Bell, G.E., D.L. Martin, M.L. Stone, J.B. Solie and G.V. Johnson. 2002. Turf area mapping using vehicle-mounted optical sensors. Crop Sci. 42:648-651.
• Bell, G.E., D.L. Martin, S.G. Wiese, D.D. Dobson, M.W. Smith, M.L. Stone, J.B. Solie. 2002. Vehicle-mounted optical sensing: An objective means for evaluating turf quality. Crop Sci. 42:197-201.
• Bell, G.E., D.L. Martin, S.G. Wiese and R.M. Kuzmic. 2001. Field evaluation of agricultural sulfur for use on turfgrass under alkaline irrigation. Int. Turf. Soc. Res. J. 9:363-367.
• Conway, K.E., D.A. Gerken, M.A. Sandburg and D.L. Martin. 2000. Population dynamics of Laetisaria arvalis and Burkholderia cepacia, potential biocontrol agents in soil cores and thatch of creeping bentgrass (Agrostis palustris). Proc. Okla. Acad. Sci. 80:39-46.
• Koh, K.,G.E. Bell, D.L. Martin, and N.R. Walker. 2003. Shade and airflow restriction effects on creeping bentgrass golf greens. Crop Sci. (in press).
• Martin, D.L., G.E. Bell, J.H. Baird, C.M. Taliaferro, N.A. Tisserat, R.M. Kuzmic, D.D. Dobson, and J.A. Anderson . 2001. Spring dead spot resistance and quality of seeded bermudagrasses under different mowing heights. Crop Sci. 2001 41: 451-456.
• Martin, D.L., G.E. Bell, C.M. Taliaferro, N.A. Tisserat, J.H. Baird, D.D. Dobson, R.M. Kuzmic, and J.A. Anderson. 2001. Spring dead spot resistance of inter-specific hybrid bermudagrasses. Int. Turf. Soc. Res. J. 9:685-688.
• Walker, N.R., C.L. Goad, H. Zhang and D.L. Martin. 2002. Factors influencing populations of plant parasitic nematodes in bentgrass putting greens in Oklahoma. Plant Dis. 86:764-768.
• Stiegler, J. C., G.E. Bell, and D.L. Martin. 2003. Foliar applications of magnesium and iron encourage annual bluegrass in shaded creeping bentgrass putting greens. Crop Management 10:1094. (Available on-line at: http://www.plantmanagementnetwork.org/pub/cm/research/2003/bluegrass/). Verified 23 August 2003.
• Taliaferro, C.M., D.L. Martin, J.A. Anderson, M.P. Anderson, G.E. Bell, A.C. Guenzi. 2003. Registration of ‘Yukon’ bermudagrass. Crop Sci. 43:1131-1132.
• Koh, K., G.E. Bell, D. L. Martin, and M.R. Walker. 2003. Shade and airflow restriction effects on creeping bentgrass golf greens. Crop Sci. 43(7):2182-2188.
• Iriarte, F.B., H.C. Wetzel III, J.D. Fry, D.L. Martin, and N.A. Tisserat. 2004. Genetic Diversity and Aggressiveness of Ophiosphaerella korrae, a Cuase of Spring Dead Spot of Bermudagraa. Pl. Dis. 88:1341-1346.
• Yerramsetty, P.N., M.P. Anderson, C.M. Taliaferro and D.L. Martin. 2005. DNA fingerprinting of seeded bermudagrass cultivars. Crop Sci. 45(2): 772-777.
• Iriarte, F.B., J.D. Fry, D. L. Martin, T.C. Todd, and N.A. Tisserat. 2005. Effect of cold acclimation and freezing on spring dead spot severity in bermudagrass. HortSci. 40:421-423.
• Martin, D.L., D.J. Wehner, C.S. Throssell and T.W. Fermanian. 2005. Evaluation of Four Crop Water Stress Index Models for Irrigaion Scheduling Decisions on Penncross Creeping Bentgrass. Int. Turf. Soc. Res. J. 10:373-386.
• Kenworth, K.E., C.M. Taliaferro, B.F. Carver, D.L. Martin, J.A. Anderson, and G.E. Bell. 2006. Genetic Variation in Cynodon transvaalensis Burtt-Davy Crop. Sci. 46:2376-2381.

• Anderson, M., A. Guenzi, D. Martin, C. Taliaferro and N. Tisserat. 2002. Spring dead spot: A major bermudagrass disease. USGA Greens Section Record. Vol. 40(1):21-23.
• Bell, G.E., D.L. Martin, M.L. Stone and J.B. Solie. 2001. A futuristic technique for turf management. Golf Course Mgmt. 69(8): 73-75.
• Martin, D.L., G.E. Bell, G.E. Gazaway and D.D. Dobson. 2001. Evaluation of an electrochemical water treatment device. Golf Course Mgmt. 69(11):66. (Available on-line at: http://www.gcsaa.org/gcm/2001/nov01/11edge.html). Verified 21 Aug. 2003.
• Martin, D.L. and J. Gazaway. 2003. Can nontraditional water conditioning devices help address irrigation water quality and quantity issues? Turfgrass Environmental Research Online 2(13):1-9. United States Golf Assoc. (Available on-line at: http://turf.lib.msu.edu/tero/v02/n13.pdf). Verified 21 Aug. 2003.
• Martin, D.L., C.M. Taliaferro, N.A. Tisserat, G.E. Bell, J.H. Baird, D.D. Dobson, J.A. Anderson and R.M. Kuzmic. 2001. Hardy bermudagrasses sought with resistance to spring dead spot. Golf Course Mgmt. 69(6):75-80.
• Tisserat, N.A., F.B. Iriarte, H.C. Wetzel III, J.D. Fry, and D.L. Martin. 2003. Identification, Distribution, and Aggressiveness of Spring Dead Spot Pathogens of Bermudagrass. Turfgrass Environmental Research Online 2(in press). United States Golf Assoc.
• Martin D., N. Tisserate, C. Taliaferro, N. Walker, and M. Anderson. 2005. Resistant culrivars are bermuda's best battle vs spring dead spot. TurfGrass Trends. Feb. p. 75,78, 80, 82.

Justin Quetone Moss

Research Team:

Dr. Kemin Su, Senior Research Specialist
Kyungjoon Koh, Senior Research Specialist (Ph.D. student)
Bishow Poudel, Graduate Research Assistant (M.S. student)
Xiaowei Pan, Graduate Research Assistant (M.S. student)
Yang Tian, Graduate Research Assistant (M.S. student)
Dave Clark, Field Research Assistant
Duan Suling, Undergraduate Student Intern
Emmett Phillips, Student Field Assistant

Research Activities:

Selected Research Publications:

Bell, G.E. and J.Q. Moss. 2008. Management practices that reduce runoff transport of nutrients and pesticides from turfgrass. p. 133-150. In A.M. Petrovic, B. Horgan, and M. Carrol (ed.) The Fate of Turfgrass Nutrients and Plant Protection Chemicals in the Urban Environment. American Chemical Society, Washington, D.C.

Moss, J. Q., Bell, G. E., Martin, D. L., and Payton, M. E. 2007. Nutrient runoff from bermudagrass golf course fairways after aerification. [Online]. Applied Turfgrass Science doi:10.1094/ATS-2007-0125-02-RS.

Moss, J.Q., G.E. Bell, M.A. Kizer, M.E. Payton, H. Zhang, and D. L. Martin. 2006. Reducing nutrient runoff from golf course fairways using grass buffers of multiple height. Crop Science 46:72-80.

Girma, K., K.L. Martin, R.H. Anderson, D.B. Arnall, K.D. Brixey, M.A. Casillas, B. Chung, B.C. Dobey, S. Kamenidou, S.K. Kariuki, E. Katsalirou, J.C. Morris, J.Q. Moss, C. T. Rohla, B.J. Sudbury, B.S. Tubana, and W.R. Raun. 2006. Mid-season prediction of wheat grain yield potential using plant, soil, and sensor measurements. Journal of Plant Nutrition 29:873-897.

Selected Extension Publications:

Moss, J.Q. and G.E. Bell. 2008. Management practices to reduce runoff. SportsTurf. 24(3):20-21.

Moss, J.Q., B. Nelson, and R. Hybner. 2008. Wyoming 2007 dryland cool-season forage grass variety trial results - Sheridan. [Online]. Forage and Grazinglands. Available at http://www.plantmanagementnetwork.org/fg/trials/ (verified 12 Mar. 2009).                        

Moss, J.Q., G.E. Bell, D.L. Martin, and M.E. Payton. 2007. Nutrient runoff from bermudagrass fairways after aerification. Golf Course Management. 75(7):120-124.

Bell, G.E. and J.Q. Moss. 2006. Mowing roughs to minimize runoff. USGA Green Section Record. 44:21-25.

Bell, G.E. and J.Q. Moss. 2006. Mowing practices that reduce runoff from turf. TurfGrass Trends 62(6):43-46

PROFESSIONAL MEMBERSHIPS

• Agronomy Society of America
• American Indian Science and Engineering Society
• American Society for Horticultural Science
• Crop Science Society of America
• Golf Course Superintendents Association of America
• North American Colleges and Teachers of Agriculture
• Oklahoma Golf Course Superintendents Association
• Sports Turf Managers Association

Faculty Page Horticulture and Landscape Architecure Department  Agricultural Sciences and Natural Resources  Oklahoma State University August 2009 • 358 Agriculture Hall, Oklahoma State University, Stillwater, Oklahoma 74078  • Phone: 405.744.5414 Send questions or comments to our Webmaster.