Recent Publications: Gwathmey, C. O., C. E. Michaud, M. C. Smith, and J. S. Williams. 2003. Advanced variety trials. Ch. I. In Tennessee Cotton Variety Test Results in 2002. (C. O. Gwathmey, C.C. Craig, Jr., and F.L. Allen, eds.) Tenn. Agric. Exp. Sta. Res. Rep. 03-04. Knoxville TN. http://www.taes.utk.edu/research/varietytrials/variety.html Larson, J. A., C. O. Gwathmey, and R. M. Hayes. 2002. Cotton defoliation and harvest timing effects on yields, quality, and net revenues. J. Cotton Sci. 6:13-27. http://www.jcotsci.org Logan, J. and C. O. Gwathmey. 2002. Effects of weather on cotton responses to harvest?aid chemicals. J. Cotton Sci. 6:1-12.http://www.jcotsci.org Gwathmey, C. O. 2002. Precision planting UNR cotton. p. 7-9. In Proc. 5th Ann. Nat. Conservation Tillage Cotton and Rice Conf. (J.M. LaRose, ed.), 24-25 Jan 2002, Tunica MS. Mid America Farm Publ., Perryville MO. http://www.cottoninc.com/ConservationTillage/homepage.cfm?page+3166-Precision Gwathmey, C. O., J. T. Cothren, K. E. Lege, J. Logan, B. A. Roberts, and J. R. Supak. 2001. Influence of environment on cotton defoliation and boll opening. Ch. 3 In Cotton Harvest Management: Use and Influence of Harvest Aids. (J.R. Supak and C.E. Snipes, eds.) The Cotton Foundation Reference Book Series, No. 5, Memphis TN. Cothren, J. T.,C. O. Gwathmey, and R. B. Ames. 2001. Physiology of cotton defoliation and desiccation. Ch. 2 In Cotton Harvest Management: Use and Influence of Harvest Aids. (J.R. Supak and C.E. Snipes, eds.) The Cotton Foundation Reference Book Series, No. 5, Memphis TN. Howard, D. D., C. O. Gwathmey, M. E. Essington, R. K. Roberts, and M. D. Mullen. 2001. Nitrogen fertilization of no-till cotton on loess-derived soils. Agron. J. 93:157-163. Gwathmey, C. O., D. D. Howard, C. E. Michaud, and E. F. Robison. 2001. The timing of bronze wilt appearance affects fruit retention. p. 108-111. In Proc. Beltwide Cotton Conf., 9-13 Jan. 2001, Anaheim CA. Nat. Cotton Council, Memphis TN. http://www.cotton.org/beltwide/proceedings/2001/abstracts/57.cfm Gwathmey, C. O. 2000. Crop rotation possibilities with ultra-narrow cotton. p. 11-12. In Proc. 3rd Annual National Conservation Tillage Cotton and Rice Conf. (J.M. LaRose, ed.), 18-19 Jan. 2000, Tunica MS. Nat. Conserv. Tillage Digest, Perryville MO. http://www.cottoninc.com/ConservationTillage/homepage.cfm?page+2278#Nitrogen Gwathmey, C. O., C. E. Michaud, R. D. Cossar, and S. H. Crowe. 1999. Development and cutout curves for ultra-narrow and wide-row cotton in Tennessee. p. 630-632. In: Proc. Beltwide Cotton Conf., 3-7 Jan 1999, Orlando FL. Nat. Cotton Council, Memphis TN. http://www.cotton.org/beltwide/proceedings/1999/abstracts/319.cfm Gwathmey, C. O. and D. D. Howard. 1998. Potassium effects on canopy light interception and earliness of no-tillage cotton. Agron. J. 90:144-149. Howard, D. D., C. O. Gwathmey, and C. E. Sams. 1998. Foliar feeding cotton: Evaluating potassium sources, potassium solution buffering, and boron. Agron. J. 90:740-746. Gwathmey, C. O. and R. M. Hayes. 1997. Harvest-aid interactions under different temperature regimes in field-grown cotton. J. Cotton Sci. 1:1-10. http://www.jcotsci.org