John L. Caddel
Professor
|
Forage Management, Integrated Alfalfa Management , Alfalfa Breeding, Alfalfa Variety Testing
Professional Experience
Professor: Oklahoma State University, 1986-present
Assistant Professor: Oklahoma State University, 1977-81
Associate Professor: Oklahoma State University, 1981-86
Assistant Professor: University of Minnesota, 1971-77
NDEA Fellow and Graduate Assistant: Oklahoma State University, 1966-71
Certificate of Excellence from the American Society of Agronomy, Educational Materials Program for development of Oklahoma Alfalfa Production Calendar - http://alfalfa.okstate.edu/alfa-cal.htm 1998.
Outstanding Extension Specialist Achievement Award. Plant & Soil Sciences Department, OSU. 1998.
Certificate of Excellence from the American Society of Agronomy, Educational Materials Program for contributions to the Okla. Coop. Extension Circular E-943 (Alfalfa Harvest Management Discussions with Cost-Benefit Analysis). 1996.
Certificate of Excellence from the American Society of Agronomy, Educational Materials Contest for editing, coordinating, and contributing to the NEWS, the newsletter of the Oklahoma Alfalfa Hay & Seed Association. 1996.
Alfalfa Extension Award for Excellence in Alfalfa Extension Activities from The Certified Alfalfa Seed Council, Presented at the National Alfalfa Symposium East Lansing, MI. 1996.
Recent Invited Presentations (out of state)
Delivering Alfalfa Production Information via the World Wide Web. 2002. Part of Symposium on Distance Education in Extension. ASA-CSSA Annual Meeting.
Medics for the Southern Great Plains. 2001. Part of Symposium on Annual Medics. ASA-CSSA Annual Meeting.
Industry and University Working Together for Alfalfa. 1998. American Alfalfa Processors Assoc. Annual Meeting. Overland Park, KS. November, 1998.
Grazing Alfalfa -- Past, Present, and Future. 1997. National Alfalfa Grazing Conference.
Evaluating Forage Variety Trial Effectiveness. 1996. Part of Forage Variety Testing Symposium, Current Status and Implication for the Future, Agronomy Annual Meetings.
Cultivar and Germplasm Releases:
Alfalfa Cultivar Releases - Year
OK 169 - 2000, OK 199 - 2000, OK 200 - 2000, OK 201 - 2000, OK 49 - 1990
Alfalfa Germplasm Releases - Year
OK 163, OK 164, OK 187, OK 188, OK 189, OK 208 Enhancement Group - 2000,
OK 190 - 2000, OK 206 - 2000, OK 207 - 2000, OK 212 - 2000, OK 51 - 1991, OK 85 - 1991
Activities
Extension Activities: 1991-present
Provide leadership in the development of educational programs for forage legume production with emphasis on:
-
Alfalfa in central and west parts of the state and
-
Clovers in eastern pastures.
Educational programs include development of:
-
Profitable forage production presentations
-
Support for forage producer groups.
Research Activities: 1977-present
Direct an alfalfa breeding and management program designed to develop improved multiple-pest resistant alfalfa cultivars and IPM practices. Leader for farming systems approach for the development of sustainable alfalfa production. Initiated "Agroecosystem Approach to Pasture Production", aimed at using clovers to enhance forage quality and yield.
Alfalfa Breeding concentrates on:
-
Enhancement of germplasm with resistance to important alfalfa pests and tolerance grazing.
-
Evaluation alfalfas cultivars from the OSU program as well as other public and private programs for forage yield potential, persistence during grazing, and resistance to pests.
Alfalfa Management research emphasizes on:
-
Evaluation of alfalfa production practices that economically impact yield, forage quality, and persistence.
-
Development of integrated management systems to minimize production losses and optimize forage yield.
Pasture Production research includes activities related to development of sustainable agroecosystem using legumes and rotational stocking to enhance forage quality and yield.
International Longterm Overseas Activities
1987-1988. Resident Advisor, Agricultural Technology Transfer Tunisia. Coordinated all in-country activity for USAID/MIAC project. University of Missouri - Lead University.
1971-77. Developed a barley breeding project in Morocco with major emphasis on selection for disease and lodging resistance; screened thousands of barley lines and populations for resistance to powdery mildew, net blotch, stripe rust, and lodging.
National/International Organization Activities
Crop Science Society of America
Symposium Organizing Committee -- Annual Medics, 2001.
Crop Registration Committee -- Alfalfa, 1990 to 2001. Chair - 1995- 2001
Genetics & Plant Breeding Award for Industry Selection Committee. 1993-95
American Society of Agronomy
Symposium Organizing Committee -- Distance Education in Extension. 2002.
Invited presentation - Evaluating Forage Variety Trial Effectiveness. 1996. Part of Forage Variety Testing Symposium, Current Status and Implication for the Future, Agronomy Annual Meetings.
Symposium Organizing Committee -- Forage Variety Testing. 1995-97
Forage, Grassland, and Range Resource Committee Member. ASC-824. 1995 to present.
American Forage and Grassland Council
Professional Organizations Liaison Committee Member 1995 to 1998
Recipient of Presidential Award for Affiliate Councils. American Forage & Grassl. Council. Secretary of Ok. Alfalfa Hay & Seed Assoc. 1994.
Recipient of Merit Certificate Award - American Forage & Grassland Council. 1990.
North American Alfalfa Improvement Conference
Executive Committee, 1985-1987, 2000-2006
Treasurer, 2000-2006
Regulatory Issues Committee, 1993-2004
Honorary Members Selection Committee, 1994-2002
R.R. Hill, Jr. Award Selection Committee, 1994-2002
Chairman -- Local Arrangements Committee, 1996
Professional Organizations Liaison Committee Member 1996-2000
Standards Committee for Yield Testing — 1996-2000
Alfalfa Council
Recipient of Alfalfa Extension Award for Excellence in Alfalfa Extension Activities from The Certified Alfalfa Seed Council, Presented at the National Alfalfa Symposium East Lansing, MI. 1996
Invited Presentation: Grazing Alfalfa -- Past, Present, and Future. 1997. National Alfalfa Grazing Conference.
Regional Organization Participation
Central Alfalfa Improvement Conference
Officer - Vice Chairman, 1984-1985, Chairman, 1985-1987
Committee - Check cultivars for Yield Trials
Coordinator for CAIC Variety Tests, 1984-2002
Local arrangements, Committee Chairman, 1985
Variety Testing Procedures -- 1994-2006
Web Page Committee -- 1996-2006
Southern Pasture and Forage Crop Improvement Conference
Southern Pasture and Forage Crop Improvement Conference, Chair-elect, 2005-6, Chair, 2004-5
Program Planning Committee. 1996
Web Page Development Committee, Chair 1998-present.
Local and University Organization Participation
Agriculture Faculty Council, 2000-2002, Secretary 2000-2002
OSU Faculty Council Promotion and Terminations Appeals Committee, 1994-1998
Chair, Dispute Resolution Committee, 1997-98
Division of Agriculture Web Page Development Committee - 1998-2000.
Oklahoma Alfalfa Hay and Seed Association
Member, 1977-present
Secretary-Treasurer, 1991-present
Newsletter Coordinator and Editor
Plant and Soil Sciences Department
Crop Breeding and Genetics Panel, 1977-present
Building and Space Committee, 1979-1980
International Activities Coordinator, 1982-2002
Chairman, 1989-2002
CSRS (CSREES) Review Organizing Committee member, 1989, 1996
Strategic Planning Committee, 1990
Research Stations Liaison Committee, 1996 - 2002
Responsible for the Eastern Research Station, Haskell, 1996 - 2002
Publications Committee Chairman, 1995-1999
Computer Advisory Committee, 1996 - 2000
WWW Development Committee, 1997 - 2000
Journal Articles & Edited Proceedings
Caddel, J.L., D.D. Redfearn, and R.L. Woods. 2005. Sustainable grass-legume pastures for cow-calf herds: a case study. XX International Grassland Congress -- offered papers. p. 788.
Cummings, D.C., R.C. Berberet, J.F. Stritzke, and J.L. Caddel. 2004. Sod-Seeding and Grazing Effects on Alfalfa Weevils, Weeds, and Forage Yields in Established Alfalfa. Agron. J. 96: 1216-1221.
Caddel, J.L., H. Zhang, and K. Wise. 2004. Yield Response of Alfalfa, Red Clover, and White Clover to Soil pH and Lime Treatments. Online. Forage and Grazinglands doi:10.1094/FG-2004-1028-01-RS. (http://www.plantmanagmentnetwork.org/pub/fg/research/2004/treat/)
Caddel, J.L. 2002. Annual Medics for the Southern Great Plains. American Forage & Grassland Council Proc. Bloomington MN pp. 163-167.
Bauchan, G.R., W.R. Ocumpaugh, J.L. Caddel, J.W. Fisk, R.W. Groose, O.B. Hesterman, J.M. Krall, A. Lake, R.A. Latta, and C.C. Sheaffer. 2002. Symposium on annual medics. Crop Sci. 42: (In preparation)
Caddel, J.L., A.A. Zarrabi, and R.C. Berberet. 2002. Registration of OK 206 and OK 207 alfalfa germplasms. Crop Sci. 42: (In press)
Caddel, J.L., A.A. Zarrabi, and R.C. Berberet. 2002. Registration of OK 190 alfalfa germplasm. Crop Sci. 42: (In press)
Caddel, J.L., A.A. Zarrabi, & J.D. Prater. 2002. Registration of 'OK 169' alfalfa. Crop Sci. 42: (Jan.-Feb.)
Caddel, J.L., A.A. Zarrabi, R.C. Berberet, and J.D. Prater. 2002. Registration of OK163, OK 164, OK 187, OK 188, OK 189, and OK 208 enhanced alfalfa world collection germplasm. Crop Sci. 42: (Jan.-Feb.)
Caddel, J.L. 2000. Forage legume information on the web. American Forage & Grassland Council Proceedings. Madison, WI. p 95-97.
Mullen, R.W., G.V. Johnson, J.F. Stritzke, J.L. Caddel, S.B. Phillips, and W.R. Raun. 2000. Alfalfa Yield Response to Method and Rate of Applied Phosphorus. p. 182-187. In 2000 Great Plains Soil fertility Conference Proceedings, Denver, CO. Vol 8, A.J. Schlegel ed, Kansas State University.
Caddel, J.L., G.V. Johnson, W.R. Raun, J.F. Stritzke, & S.B. Phillips. 1998. Alfalfa response to rates and methods of applied phosphorus fertilizer. Proc. 54th So. Past. & For. Crop Improv. Conf., Lafayette, LA., April. p. 66-70.
Caddel, J.L. 1997. Alfalfa grazing varieties -- Past, present, future. 2nd National Alfalfa Grazing Conference. Certified Alfalfa Seed Council. Omaha NB. August. p. 9-19 .
Caddel, J.L. & L.A. Redmon. 1997. Forage legumes uses in Oklahoma: Opinions and perceptions. American Forage & Grassland Council Proceedings. Ft. Worth TX pp 297-301.
Caddel, J.L., D. Putnam, & T. Busbice. 1996. Evaluating forage variety trial effectiveness. In Proc. Forage Variety Testing Symposium, Current Status and Implication for the Future. p. 44-53. ASA-CSSA Symposium. Indianapolis IN.
Zarrabi, A.A., R.C. Berberet, & J.L. Caddel. 1995. A new biotype of Acyrthosiphon kondoi (Homoptera: Aphididae) on alfalfa in Oklahoma. J. Econ. Entomol. 88: 1461-1465.
Anderson, M.P., C. Bensch, J.F. Stritzke, & J.L. Caddel. 1995. Uptake, translocation and metabolism in alfalfa (Medicago sativa) selected for enhanced tolerance to terbacil. Weed Sci. 43:365-369.
Woods, R.L. & J.L. Caddel. 1994. Managing clover pastures in eastern Oklahoma. Amer Forage & Grassl. Council Proc. 3:167-171.
Handbooks & Circulars
Caddel, John, Jim Stritzke, Richard Berberet, Patricia Bolin, Ray Huhnke, Gordon Johnson, Mike Kizer, David Lalman, Phil Mulder, Dan Waldner, Clement Ward, & Hailin Zhang. 2001. Alfalfa Production Guide for the Southern Great Plains. Okla. Coop. Ext. Circular E-826.
Caddel, J.L., J.F. Stritzke, P. Mulder, G. Johnson, C. Ward, R. Huhnke, & R. Berberet. 1996. Alfalfa stand establishment questions and answers. Oklahoma Coop. Extension Circular. E-949.
Caddel, J.L., J.F. Stritzke, P. Mulder, R. Huhnke, R. Berberet, & C. Ward. 1995. Alfalfa harvest management discussions with cost-benefit analysis. Oklahoma Coop. Extension Circular E-943.
Caddel, J.L. Contributing Author. 1982. Alfalfa production and pest management in Oklahoma. OSU Coop. Ext. Serv. Pub. Circular E-826.
Extension Publications
Caddel, J.L. & J.D. Prater. 2006. Alfalfa varieties for Oklahoma-2006. O.S.U. Plant & Soil Sci. Prod. Tech. Forage Crops. PT-2006-8. July 2006 [online] Available at http://alfalfa.okstate.edu/pub/alfvar06.htm
Caddel, J.L., & D.D. Redfearn. 2006. Oklahoma Forage Newsletter. Vol. 1. [online] Available at http://forage.okstate.edu/oklahoma-forage-newsletter.htm
Zhang, Hailin, & John Caddel, 2006. Fertilizer and lime recommendations for cowpeas in Oklahoma. O.S.U. Plant & Soil Sci. Prod. Tech. PT-2006-1. January 2006.
Caddel, J.L., D.D. Redfearn, H. Zhang, J.T. Edwards, & S.P. Deng. 2006. Forage Legumes and Nitrogen Production. OSU Extension Facts F-2590.
Caddel, J.L. & J.D. Prater. 2005. Alfalfa varieties for Oklahoma-2005. O.S.U. Plant & Soil Sci. Prod. Tech. Forage Crops. PT-2005-12. July 2005 [online] Available at http://alfalfa.okstate.edu/pub/alfvar05.htm
Caddel, J.L. and J.D. Prater. 2004. Alfalfa varieties for Oklahoma-2004. O.S.U. Plant and Soil Sci. Prod. Tech. Forage Crops. PT-2004-10. August 2004 [online] Available at http://alfalfa.okstate.edu/pub/alfvar04.htm.
Caddel, J.L., R.L. Woods, D.D. Redfearn, K. Barnes, J.H. Bouton, A.A. Hopkins. 2004. Eastern Research Station Field Tour Proceedings. [online] Available at http://oaes.pss.okstate.edu/agronstations/1haskelltour2004/tourlist2004.htm
Stritzke, J.F. and J.L. Caddel. 2001. Alfalfa stem density affects weed control and other management practices. O.S.U. Plant & Soil Sci. Prod. Tech. Forage Crops PT-2001-17. July 2001.
Caddel, J.L. (Editor, Contributor, & Coordinator). 2001. NEWS. Oklahoma Alfalfa Hay and Seed Association Newsletter.
Caddel, J.L. and J.D. Prater. 2003. Alfalfa varieties for Oklahoma-2003. O.S.U. Plant & Soil Sci. Prod. Tech. Forage Crops PT-2003-13. June 2003.
Caddel, John, Jim Stritzke, Richard Berberet, Patricia Bolin, Ray Huhnke, Gordon Johnson, Mike Kizer, David Lalman, Phil Mulder, Dan Waldner, Clement Ward, and Hailin Zhang. 2001. Alfalfa Production Guide for the Southern Great Plains. Okla. Coop. Ext. Circular E-826.
Mullen, R.W., G.V. Johnson, J.F. Stritzke, J.L. Caddel, S.B. Phillips, and W.R. Raun. 2001. Alfalfa Responds to High Rates, P Banding. Fluid J. 9:8-11.
Caddel, J.L. & L.A. Redmon. 1998. Annual Lespedeza. O.S.U. Forage Crops. Prod. Tech. PT-98-16.
Caddel, J.L., & L.A. Redmon. 1995. White clover. O.S.U. Agron. Prod. Tech. Forage Crops 95-29.
Caddel, J.L. & L.A. Redmon. 1995. Arrowleaf clover. O.S.U. Agron. Prod. Tech. Forage Crops 95-13.
Caddel, J.L. & L.A. Redmon. 1995. Red clover. O.S.U. Agron. Prod. Tech. Forage Crops 95-16.
Miscellaneous Research Publications
Caddel, J.L. & J.D. Prater. 2003. Oklahoma 2003 alfalfa variety evaluations. Cent. Alfalfa Imp. Conf. Variety Tests Report.
Caddel, J.L. 2001. Breeding Forage Legumes in Oklahoma. Proc. 56th Southern Pasture and Forage Crop Improvement Council. Springdale, AR, April 21-22, 2001. p. 39-46.
Caddel, J.L. 1996. Forage legume research and extension at Oklahoma State University. Proc. Southern Pasture and Forage Crop Improvement Council. Oklahoma City, OK. p. 1-8.
Abstracts of Professional Papers
Caddel, JL. 2006. Water Use By Alfalfa. Proceedings of 40th North Am. Alfalfa Impr. Conf. July 16-19, 2006 Bloomington, MN. [online] Available at http://www.naaic.org/Meetings/National/2006meeting/procedings/Caddel-NAAIC-Abstract.pdf.
Redfearn, Daren D., John L. Caddel and Robert L. Woods, Jr. 2006. Sustainable grass-legume pastures for cow-calf herds. American Forage & Grassland Council Abstracts.
Caddel, J.L., D.D. Redfearn, and R.L. Woods. 2005. Sustainable grass-legume pastures for cow-calf herds - a case study. International Grassland Congress. -- offered papers. p. 788.
Caddel, J.L., and Hailin Zhang. 2004. Effects of Lime on Alfalfa, Red Clover, and White Clover. Proceedings of 39th North Am. Alfalfa Impr. Conf. Sacramento, CA. [online] Available at http://www.naaic.org/Meetings/National/2004NAAIC&TC/2004abstracts/jCaddel.pdf
Caddel, J.L., and D.D. Redfearn. 2003. Longterm soil analyses for improving pasture sustainability. In Proc. ASA Annual Meeting. Denver, CO. Abst.
Caddel, John, Dan Undersander, Julie Hansen, Robert Kallenbach, John McCormick, Dwain Meyer, Vance Owens, Kraig Roozeboom, Mark Sulc, and Richard Todd. 2003. Reporting CAIC Variety Tests in Crop Management on the Web. Proceedings of 28th Central Alfalfa Impr. Conf. Virtual Meeting. July 21 - 25, 2003. Online available at http://www.naaic.org/Meetings/Central2003/CAIC2003VirtualMeeting.htm
Redfearn, D.D., J.L. Caddel, R.L. Woods, and K. Barnes. 2003. Integrating pasture management and herd size strategies. American Forage & Grassland Council Intrep. Summ. Lafayette, LA. p. 74
Caddel, J.L. 2002. Annual Medics for the Southern Great Plains. American Forage & Grassland Council Intrep. Summ. Bloomington MN p 68.
Caddel, J.L. 2002. Delivering Alfalfa Production Information via the World Wide Web. In Proc. ASA Annual Meeting. Indianapolis, IN.
Caddel, J.L. 2001. Medics for the southern Great Plains. In Proc. ASA Annual Meeting. Charlotte, NC. Abst. p.
Caddel, J.L. 2000. Potential of Rigid medics in the southern plains. In Proc. ASA Annual Meeting. Minneapolis, MN. Abst. p. 170.
Caddel, J.L. 2000. Forage legume information on the web. American Forage & Grassland Council Proceedings. Madison, WI. Abst. p. 95.
Caddel, J.L., R.C. Berberet & J.F. Stritzke. 1999. Oklahoma alfalfa production calender. Proceedings of 26th Central Alfalfa Impr. Conf. Columbus, OH, July 25-27, 1999.
Berberet, R.C., A.D. Bisges, J.L. Caddel, & J.F. Stritzke. 1999. Oklahoma alfalfa production calendar: integrated pest management on the WWW. Nat. Mtg. Entomol. Soc. Am., Atlanta, GA.
Caddel, JL, RC Berberet, & JF Stritzke. 1998. Alfalfa information for producers via WWW. Proceedings of 36th North Am. Alfalfa Impr. Conf. Bozeman MT. August.
Caddel, JL, RC Berberet, & JF Stritzke. 1998. Using WWW for alfalfa production information. Am. Soc. of Agronomy Proceedings. Baltimore MD. October.
Zarrabi, A.A., R.C. Berberet, & J.L. Caddel. 1998. Yield and stand reduction caused by a new biotype of blue alfalfa aphid in Oklahoma. 36th N. Amer. Alfalfa Imp. Conf. Bozeman, MT.
Caddel, J.L., Roger Gribble & Mark Gregory. 1997. On-farm vs on-station variety tests. 25th Central Alfalfa Improvement Conf. Proceedings. July 1997 La Crosse WI p. 34.
Caddel, J.L. & L.A. Redmon. 1997. Forage legumes uses in Oklahoma: Opinions and perceptions. American Forage & Grassland Council Proceedings. Ft. Worth, TX.
Mulder, P.G., R.C. Berberet, J.T. Criswell, G.W. Cuperus, J.F. Stritzke, R.L. Huhnke & J.L. Caddel. 1997. Measuring adoption of IPM practices by alfalfa producers in Oklahoma. Nat. Mtg. Entomol. Soc. Am., Nashville, TN.
Caddel, J.L., D. Putnam, & T. Busbice. 1996. Evaluating forage variety trial effectiveness. In Proc. ASA Annual Meeting. Indianapolis, IN. Abst. p. 159.
Caddel, J.L., 1996. Forage legume research and extension at Oklahoma State University. Proc. Southern Pasture and Forage Crop Improvement Council. Oklahoma City, OK. p. 1-8.
Caddel, J.L. 1996. Evaluation of Oklahoma alfalfa production. N. Amer. Alfalfa Imp. Conf. Oklahoma City, OK. p. 72.
Zarrabi, A.A., R.C. Berberet, & J.L. Caddel. 1996. Evaluations of resistance to new biotype of the blue alfalfa aphid, Acyrthosiphon kondoi Shinji, "BAOK90". N. Amer. Alfalfa Imp. Conf. Oklahoma City, OK. p. 17.
Woods, R.L. & J.L. Caddel. 1994. Managing clover pastures in eastern Oklahoma. Amer. Forage & Grassl. Council Interp. Sum. p. 13.
Alfalfa Production Guide for the Southern Great Plains
Oklahoma Alfalfa
Oklahoma Alfalfa Hay & Seed Association Page
Oklahoma Alfalfa Production Calendar Page
Oklahoma Forages Page
Alfalfa Variety Testing Page
Southern Pasture & Forage Crop Improvement Conference
North American Alfalfa Improvement Conference
Plant and Soil Sciences Department
1971 Ph.D., Oklahoma State University - Plant Breeding and Genetics
1966 B.S., Texas A&I University - Agronomy
