Publications
Books
Kays, S.J. and S.F. Nottingham. 2007. Biology and Chemistry of Jerusalem Artichoke: (Helianthus tuberosus L.). Taylor and Francis, Boca Raton, FL, 478p.
Kays, S.J., and R.E. Paull. 2004. Postharvest Biology. Exon Press, Athen, GA, 568p.
Kays, S.J., and J.C. Silva Dias. 1996. Cultivated Vegetables of the World: Latin Binomial, Common Name in 15 Languages, Edible Part, and Method of Preparation. Exon Press, Athens, 170p.
Kays, S.J. 1991. Postharvest Physiology of Perishable Plant Products. Van Nostrand Reinhold, New York, 532p. (second printing 1997).
Publications
Guo, W.C., Nelson, S. Trabelis and S.J. Kays. 2007. 10- to 1800-MHz dielectric properties of fresh apples during storage. J. Food Eng. 83:562-569.
Guo, W.C., Nelson, S. Trabelis and S.J. Kays. 2007. Dielectric spectroscopy studies on honeydew melons. Amer. Soc. Agric. Biol. Eng. (submitted).
Guo, W.C., S.O. Nelson, S. Trabelis and S.J. Kays. 2007. Dielectric properties of honeydew melons and correlation with quality. J. Mircowave Power and Electromagnetic Energy 41(2): 44-54.
Yang, D.S., K.S. Lee, O.Y. Jeong, K.J. Kim, and S.J. Kays. 2007. Volatile flavor chemistry of black rice. J. Agri. Food. Chem. (in press).
Nelson, S.O., S. Trabelsi and S.J. Kays. 2006. Dielectric spectroscopy of honeydew melons for quality sensing. Pp. 24-27, In: Proc. 23rd IEEE Instrumentation and Measurement Technology Conf., Sorrento, Italy.
Yang, D.S., K.S. Lee, O.Y. Jeong, K.J. Kim, and S.J. Kays. 2006. Fingerprinting rice flavor. Pp. 71-95. In: Improving Human Health through Biofortified Rice. Intern. Symp. on Rice Fortification, Nat. Inst. Crop Sci., Suwon, South Korea.
Yoo, M.H., Y.J. Kwon, K.C. Son, and S.J. Kays. 2006. Efficacy of indoor plants for the removal of single and mixed volatile organic pollutants and physiological effects of the volatiles on the plants. J. Amer. Soc. Hort. Sci. 131:452-458.
Nelson, S.O., S. Trabelsi and S.J. Kays. 2006. Dielectic properties of honeydew melons for sensing quality. Pp. 76-78, In: Proc. 40th Ann. Microwave Symposium. International Microwave Power Institute, Boston, MA.
Lee, S.D., S.J. Kim, S.I. Jung, K.C. Son and S.J. Kays. 2006. Diurnal CO2 assimilation patterns in nine species of CAM-type succulent plants. HortScience 41:1373-1376.
Nelson, S.O., S. Trabelsi and S.J. Kays. 2006. Correlating honeydew melon quality with dielectric
properties. Amer. Soc. Agri. Biol. Eng. Paper no. 066122:1-9.
Nelson, S.O., S. Trabelsi and S.J. Kays. 2006. Correlating dielectric properties of melons for quality sensing. Pp. 4849-4852, In: IEEEE Antennas and Propagation Society International Symposium. USNC/URSI and AMERM Meetings, Phoenix, AZ.
Kays, S.J. 2006. Flavor – the key to sweetpotato consumption. Acta Hort. 703:97-105.
Kays, S.J., J. Hatch and T.S. Yang. 2005. Volatile floral chemistry of Heliotropium arborescens L. cv. Marine. HortScience 40:1237-1238.
Kays, S.J. and F. Kultur. 2005. Genetic variation in Jerusalem artichoke (Helianthus tuberosus L.) flowering date and duration. HortScience 40:1675-1678.
Kays, S.J. 2005. Sweetpotato production worldwide: Assessment, trends and the future. Acta Hort. 670:19-25.
Kays, S.J., Y. Wang and W.J. McLaruin. 2005. Chemical and geographical assessment of the sweetness of the cultivated sweetpotato clones of the world. J. Amer. Soc. Hort. Sci. 130:591-597.
Kays, S.J. 2003. Postharvest quality – Measurement, factors affecting and the future. Proc. Australasian Postharvest Horticulture Conference, pp. 109-119.
Afek, U., and S.J. Kays. 2003. Postharvest physiology and storage of widely used of root and tuber crops. Hort. Rev. 30:253-316.
Kays, S.J. 2003. Sweetpotato. In: The commercial storage of fruits, vegetables, and florist and nursery stock. U.S.D.A. Handbook 66, Washington, DC, <http://usna.usda.gov/hb66/>
Kays, S.J. 2003. Jerusalem artichoke. In: The commercial storage of fruits, vegetables, and florist and nursery stock. U.S.D.A. Handbook 66, Washington, DC, <http://usna.usda.gov/hb66/>
Kays, S.J. 2003. Processing nut crops. Pp. 349-362. In: Guide to Nut Tree Culture in North America. Vol. 1, D.W. Fulbright (ed.), Northern Nut Growers Association. Wang, Y. and S.J. Kays. 2003. Analytically directed flavor selection in breeding food crops. J. Amer. Soc. Hort. Sci. 128:711-720.
Zhong, R., S.J. Kays, B.P. Schroeder and Z.-H. Ye. 2002. Mutation of a chitinase-like gene causes ectopic deposition of lignin, aberrant cell shapes, and overproduction of ethylene. Plant Cell 14:165-179.
Kays, S.J., and Y. Wang. 2002. Sweetpotato quality: Its importance, assessment and selection in breeding programs. Acta Hort. 583:187-193.
Nottingham, S.F., and S.J. Kays. 2002. Strategies for sweetpotato weevil control. Acta Hort. 583:155-161.
Posudin, Y.I., G.G. Dull and S.J. Kays. 2002. Blood glucose monitoring in diabetes patients. J. Endrokrynologia 7(2):242-256.
Wang, Y., and S.J. Kays. 2002. Sweetpotato volatile chemistry in relation of sweetpotato weevil (Cylas formicarius Summers) behavior. J. Amer. Soc. Hort. Sci. 127:656-662.
Mohammed, M., Y. Wang, and S.J. Kays. 2001. Changes in the volatile chemistry of fresh-cut papaya (Carica papaya L.) during storage. Tropical Agric. 78:268-271.
Kays, S.J., W.J. McLaurin, Y. Wang, P.D. Dukes, J.R. Bohac, and D.M. Jackson. 2001. GA90-16 - A nonsweet, staple-type sweetpotato breeding line. HortScience 36:175-177.
Wang, Y., and S.J. Kays. 2001. Effect of cooking method on the aroma constituents of sweetpotatoes [Ipomoea batatas (L.) Lam.]. J. Food Quality 24:67-78.
Kays, S.J. 2000. On-line near infrared quality assessment of high moisture plant products. pp. 119-127. In: Integrated View of Fruit & Vegetable Quality. W.J. Florkowski, S.E. Prussia, R.L. Shewfelt (eds.), Technomic Pub., Lancaster, PA.
Wang, Y., and S.J. Kays. 2000. Contribution of volatile compounds to the characteristic aroma of baked ‘Jewel’ Sweetpotatoes [Ipomoea batatas (L.) Lam.]. J. Amer. Soc. Hort. Sci. 125:638-643.
Kays, S.J., and Y. Wang. 2000. Thermally induced flavor compounds. HortScience 35:1002-1012.
Kays, S.J., G.G. Dull, and R.G. Leffler. 2000. Challenges and opportunities in the use of NIR for the analysis of intact, high moisture plant products. pp. 841-847, In: Near Infrarred Spectroscopy: Proceedings of the 9th International Conference. A.M.C. Davies and R. Giangiacoma (eds.), NIR Publications, Chichester, England.
Kays, S.J. 1999. Technology here to help determine internal quality. Onion World 15(4):6-7.
Kays, S.J. 1999. Nondestructive quality evaluation of intact, high moisture products. NIR News 10(3):12-15.
Sonda, Z.C., W.J. McLaurin, and S.J. Kays. 1999. Jerusalem artichoke growth, development, and field storage. II. Carbon and nutrient element allocation and redistribution. J. Plant Nutrition 22:1315-1334.
McLaurin, W.J., Z.C. Somda, and S.J. Kays. 1999. Jerusalem artichoke growth, development, and field storage. I. Numerical assessment of plant part development and dry matter acquisition and allocation. J. Plant Nutrition 22:1303-1313.
Kays, S.J. 1999. Preharvest factors affecting appearance of fruits and vegetables. Postharv. Biol. Tech. 15:233-247.
Peiris, K.H.S., G.G. Dull, R.G. Leffler and S.J. Kays. 1999. Spatial variability of soluble solids or dry matter content within individual fruit and vegetable units: Implications for the development and use of NIR spectrometric techniques. HortScience 34:114-118.
Kays, S.J., Y. Wang, and W.J. McLaurin. 1999. Development of alternative flavor types of root and tuber crops as a means of expanding consumption. Trop. Agric. 75:271-275.
Peiris, K.H.S., G.G. Dull, R.G. Leffler, and S.J. Kays. 1998. Rapid, nondestructive method for determination of processed soluble solids in intact unprocessed tomato fruit using near infrared spectrometry. Acta Hort. 487:413-418.
Kays, S.J., and S.E. Kays. 1998. Sweetpotato chemistry in relation to health. Pp. 231-272. In: Sweetpotato Production Systems Toward the 21st Century. Kyushu National Agri. Expt. Sta., Miyakonojo, Miyazaki, Japan.
Alba, R., M.-M. Cordonnier-Pratt, L.H. Pratt, C.J. Valenzano, and S.J. Kays. 1998. Genetic manipulation of phytochromes in tomato (Lycopersicon lycopersicum): A novel approach to crop improvement. Acta Hort. 487:93-98.
Wang, Y., R.J. Horvat, R.A. White, and S.J. Kays. 1998. Influence of postharvest curing treatment on the synthesis of the volatile flavor components in sweetpotato. Acta Hort. 464:207-212.
Peiris, K.H.S., G.G. Dull, R.G. Leffler and S.J. Kays. 1998. Near infrared spectroscopic technique for nondestructive determination of soluble solids content in processing tomatoes [Lycopersicon lycopersicum (L.) Karsten]. J. Amer. Soc. Hort. Sci. 123:1089-1093.
Peiris, K.H.S., G.G. Dull, R.G. Leffler J.K. Burns, and C.N. Thai, and S.J. Kays. 1998. Nondestructive detection of section drying, an internal disorder in tangerine. HortScience 33:310-312.
Peiris, K.H.S., G.G. Dull, R.G. Leffler and S.J. Kays. 1998. Near infrared spectroscopic method for nondestructive determination of soluble solids content of peaches. J. Amer. Soc. Hort. Sci. 123:898-905.
Chortyk, O.T., Q. Teng, and S.J. Kays. 1997. Characterization of insecticidal sugar esters of Petunia. J. Agric. Food Chem. 45:270-275.
Thai, C.N., E.W. Tollner, K. Morita, and S.J. Kays. 1997. X-ray characterization of sweetpotato weevil larvae development and subsequent damage in infested roots. pp. 361-368. In: Sensors for Nondestructive Testing - Measuring the Quality of Fresh Fruits and Vegetables. Orlando, FL, 440p.
Thai, C.N., K. Morita, and S.J. Kays. 1997. Reflectance spectral properties of sweetpotato weevil oviposition sites on sweetpotato roots. pp. 369-375. In: Sensors for Nondestructive Testing - Measuring the Quality of Fresh Fruits and Vegetables. Orlando, FL, 440p.
Thai, C.N., E.W. Tollner, K. Morita, and S.J. Kays. 1997. VIS-NIR and X-ray properties of detached mature green tomato fruit. pp. 133-140. In: Sensors for Nondestructive Testing - Measuring the Quality of Fresh Fruits and Vegetables. Orlando, FL, 440p.
Peiris, K.H.S., G.G. Dull, R.G. Leffler, and S.J. Kays. 1997. Nondestructive determination of soluble solids content of peach by near infrared spectroscopy. Pp. 77-87. In: Sensors for Nondestructive Testing: Measuring the Quality of Fresh Fruits and Vegetables. Orlando, FL, 440p.
Starr, C.K., D.D. Wilson, R.F. Severson, and S.J. Kays. 1997. Sexual dimorphism in the sweet-potato weevil Cylas formicarius (F.)(Coleoptera: Brentidae). Canad. Entomologist 129:61-69.
Peiris, K.H.S., J.L. Mallon and S.J. Kays. 1997. Respiratory rates and vital heat of some speciality vegetables at various storage temperatures. HortTechnology 7:46-49.
Peiris, K.H.S. and S.J. Kays. 1996. Asiatic pennywort, Centella asiatica (L.) Urb., a little known vegetable crop. HortTechnology 6:13-18.
Data, E.S., S.F. Nottingham and S.J. Kays. 1996. Sweetpotato latex: Effect of latex on sweetpotato weevil, Cylas formicarius elegantulus, feeding and oviposition. J. Econ. Entomol. 89:544-549.
Sun, J.-B., R.F. Severson, W.S. Schlotzhauer, and S.J. Kays. 1995. Identification of critical volatiles in the flavor of baked `Jewel' sweetpotatoes [Ipomoea batatas (L.) Lam]. J. Amer. Soc. Hort. Sci. 120:468-474..
Kays, S.J., and J.C. Silva Dias. 1995. Common names of commercially cultivated vegetables of the world in 15 languages. Econ. Bot. 49:115-152.
Kays, S.J. R.F. Severson, S.F. Nottingham, R.B. Chalfant, and O. Chortyk. 1994. Possible biopesticide from Petunia for the control of the sweetpotato whitefly (Bemisia tabaci) on vegetable crops. Proc. Fla. St. Hort. Soc. 107:163-167.
Snook, M.E., E.M. Data, and S.J. Kays. 1994. Characterization and quantification of hexadecyl-, octadecyl-, and eicosyl-esters of p-coumaric acids in the vine and root latex of sweetpotato [Ipomoea batatas (L.) Lam.]. J. Agric. Food Chem. 42:2589-2595.
Sun, J.-B., R.F. Severson, and S.J. Kays. 1994. Effect of heating temperature and microwave pretreatment on the formation of sugars and volatiles in Jewel sweetpotato. J. Food Quality 17:447-456.
Son, K.-C., R.F. Severson, and S.J. Kays. 1993. Nonpolar cuticle waxes of flower of Petunia hybrida Hort. J. Korean Soc. Hort. Sci. 34:145-152.
Sun, J.-B., R.F. Severson, and S.J. Kays. 1993. Quantitative technique for measurement of volatile components from baked sweetpotato. HortScience 28:1110-1113.
Simonne, A.H., S.J. Kays, P.E. Koehler, and R.R. Eitenmiller. 1993. Assessment of β-carotene content in sweetpotato breeding lines in relation to dietary requirements. J. Food Comp. Analysis 6:336-345.
McLaurin, W.J., and S.J. Kays. 1993. Substantial leaf shedding - A consistant phenomenon among high-yielding sweetpotato cultivars. HortScience 28:826-827.
Kays, S.J., J.A. Harrison, D.D. Wilson, and R.F. Severson. 1993. Semi-artificial diet for the sweet potato weevil, Cylas formicarius elegantulus (Summers). J. Econ. Entomol. 86:957-961.
Marti, H.R., H.A. Mills, R.F. Severson, and S.J. Kays. 1993. Variation in the concentration of surface terpenoids in storage roots of Centennial sweetpotatoes. J. Plant Nutri. 16:741-752.
Marti, H.R., H.A. Mills, R.F. Severson, and S.J. Kays. 1993. Nutritional affects on sweetpotato storage root surface chemistry. J. Plant Nutri. 16:653-665.
Morrison, T.A., R. Pressey, and S.J. Kays. 1993. Changes in α and β-amylase activities during storage of sweetpotato lines with varying starch hydrolysis potential. J. Amer. Soc. Hort. Sci. 118:236-242.
Dickson, R.G., S.E. Law, S.J. Kays, and M.A. Eiteman. 1992. Abatement of ethylene by ozone treatment in controlled atmosphere storage of fruits and vegetables. Amer. Soc. Agric. Eng. 92-6571, 8p.
Rudolph, C.J., G.V. Odell, H.A. Hinrichs, H.J. Thomson, and S.J. Kays. 1992. Chemical changes in pecan oils during oxidation. J. Food Qual. 15:279-293.
Rudolph, C.J., G.V. Odell, H.A. Hinrichs, D.A. Hofer, and S.J. Kays. 1992. Genetic, environmental, and maturity effects on pecan kernel lipid, fatty acid, tocopherol, and protein composition. J. Food Qual. 15:263-278.
Kays, S.J., W.W. Collins and J.C. Bouwkamp. 1992. A response: The sweetpotato storage organ is a root not a tuber. Pp. 307-313. In: The Sweetpotato in the 21th Century. Second Intern. Symp. on the Sweetpotato, Montgomery, AL.
McLaurin, W.J., and S.J. Kays. 1992. Genetic diversity in sweetpotato flavor. p. 420-427. In, The Sweetpotato in the 21th Century. Second Intern. Symp. on the Sweetpotato, Montgomery, AL.
Kays, S.J. 1992. The chemical composition of the sweetpotato. Pp. 201-262. In: The Sweetpotato in the 21st Century. Second Intern. Symp. on the Sweetpotato, Montgomery, AL.
Somda, Z.C., M.T.M. Mohamed, and S.J. Kays. 1991. Analysis of leaf shedding and dry matter recycling in sweetpotato. J. Plant Nutrition 14:241-249.
Kays, S.J. 1991. Biotechnology: A horticulturists perspective. HortScience 26:1020-1021.
Koehler, P.E. and S.J. Kays. 1991. Sweet potato flavor. Quantitative and qualitative assessment of optimum sweetness. J. Food Qual. 14:241-249.
Son, K.-C., R.F. Severson, M.E. Snook, and S.J. Kays. 1991. Root carbohydrate, organic acids, and phenolic chemistry in relation to sweetpotato weevil resistance. HortScience 26:1305-1308.
Son, K.-C., R.F. Severson, and S.J. Kays. 1991. Pre- and postharvest changes in sweetpotato root surface chemicals modulating insect resistance. HortScience 26:1514-1516.
Wilson, D.D., R.F. Severson, and S.J. Kays. 1991. Oviposition stimulation of sweetpotato weevil in sweet potato: Isolation, identification, and development of analytical screening method. Pp. 221-233> In: Sweet Potato Pest Management: A Global Perspective. R.K. Jansson (ed), Westview Press, Boulder, CO.
Kays, S.J. 1991. Processing nut crops. In: Nut Tree Culture in North America. W. Reid and J.A. Payne (eds). Northern Nut Growers Assoc. Chetopa, KS.
Kays, S.J., A.S. Bhagsari, and D.H. Picha. 1991. Physiology and chemistry. Pp. 44-70. In: Sweet Potato Collaborators 50 Year Report - 1939-1989. A. Jones and J.C. Bouwkamp, eds., Southern Coop. Ser. Bull. 369.
Starr, C.K., R.F. Severson, and S.J. Kays. 1991. Volatile chemicals from sweet potato and other Ipomoea: Effects on the behavior of Cylas formicarius. Pp. 235-246. In: Sweet Potato Pest Management: A Global Perspective. R.K. Jansson (ed.), Westview Press, Boulder, CO.
Horvat, R. J., R.F. Arrendale, G.G. Dull, G.W. Chapman, Jr., and S. J. Kays. 1991. Volatile constituents and sugars of three diverse cultivars of sweet potatoes [Ipomoea batatas (L.) Lam.]. J. Food Sci. 56:714-715, 742.
Son, K.-C., R.F. Severson, and S.J. Kays. 1991. A rapid method for screening sweetpotato genotypes for oviposition stimulants to the sweetpotato weevil. HortScience 26:409-410.
Kays, S.J. 1990. Postharvest quality. Pp. 194-228. In: Pecan Husbandry: Challenges and Opportunities. B.W. Wood and J.A. Payne, eds., First Intern. Workshop Proc., USDA ARS-96.
Somda, Z.C. and S.J. Kays. 1990. Sweet potato canopy morphology: Leaf distribution. J. Amer. Soc. Hort. Sci. 115:39-45.
Somda, Z.C. and S.J. Kays. 1990. Sweet potato canopy architecture. Branching pattern. J. Amer. Soc. Hort. Sci. 115:33-38.
Wilson, D.D., K.-C Son, R.F. Severson and S.J. Kays. 1990. Effect of a pentacyclic triterpene from sweet potato storage roots on oviposition by the sweetpotato weevil (Coleoptera: Curculionidae). Environ. Entomol. 19:1663-1665.
Son, K.-C, R.F. Severson, and S.J. Kays. 1990. Surface chemical differences between sweet potato lines with varying levels of resistance to the sweet potato weevil, Cylas formicarius elegantulus (Summers). J. Amer. Soc. Hort. Sci. 115:696-699.
Son, K.-C, R.F. Severson, R.F. Arrendale and S.J. Kays. 1990. Isolation and characterization of a pentacyclic triterpene ovipositional stimulant from Ipomoea batatas Lam. J. Agric. Food Chem. 38:134-137.
Beaudry, R.M., R.F. Severson, C.C. Black, and S.J. Kays. 1989. Banana ripening: Implications of changes in glycolytic intermediate concentrations, glycolytic and gluconeogenic carbon flux and fructose 2,6-bisphosphate concentration. Plant Physiol. 91:1436-1444.
Kays, S.J. 1988. Strategies for selecting conventional and new flavor types of tropical root and tuber crops to increase consumer acceptance and use. Pp. 178-188. 8th Intern. Symp. Tropical Root Crops. Bangkok, Thailand.
Wilson, D.D., K.-C. Son, S.F. Nottingham, R.F. Severson, and S.J. Kays. 1989. Characterization of an oviposition stimulant from the surface of sweet potato Ipomoea batatas storage roots for the sweet potato weevil, Cylas formicarius elegantulus. Entomol. Exp. Appl. 51:71-75.
Dull, G.G., and S.J. Kays. 1988. Quality and mechanical stability of pecan kernels with different packaging protocols. J. Food Sci. 53:565-567.
Nottingham, S.F., K.-C. Son, D.D. Wilson, R.F. Severson and S.J. Kays. 1989. Feeding and oviposition preferences of sweet potato weevil, Cylas formicarius elegantulus (Summers), on storage roots of sweet potato cultivars with differing surface chemistries. J. Chem. Ecol. 15:895-903.
Banks, N.H. and S.J. Kays. 1988. Measuring internal gases and lentical resistance to gas diffusion in potato tubers. J. Amer. Soc. Hort. Sci. 113:577-580.
Nottingham, S.F., K.-C. Son, R.F. Severson, R.F. Arrendale and S.J. Kays. 1989. Attraction of adult sweet potato weevils, Cylas formicarius elegantulus (Summers), (Coleoptera:Curculionidae), to sweet potato leaf and root volatiles. J. Chem. Ecol. 15:1095-1106.
Nottingham, S.F., K.-C. Son, D.D. Wilson, R.F. Severson and S.J. Kays. 1988. Feeding by adult sweet potato weevils, Cylas formicarius elegantulus, on sweet potato leaves. Ento. Exp. Appl. 48:157-163.
Beaudry, R.M. and S.J. Kays. 1988. Effect of ethylene source on abscission of pepper plant organs. HortScience 23:742-744.
Beaudry, R.M., and S.J. Kays. 1988. Flux of ethylene from leaves treated with a polar or non-polar ethylene-releasing compound. J. Amer. Soc. Hort. Sci. 113:784-789.
Beaudry, R.M., and S.J. Kays. 1988. Application of ethylene releasing compounds in agriculture, p. 127-155. In "Foliar Application of Agricultural Chemicals", P. M. Neuman, ed., CRC Press, Boca Raton, FL.
Wilson, D.D., R.F. Severson, K-C. Son, and S.J. Kays. 1988. Oviposition stimulant in sweet potato periderm for the sweetpotato weevil, Cylas formicarius elegantulus. Environmental Entomol. 17:691-693.
Kays, S.J., J.D. Goeschl, C.E. Magnuson, and Y. Fares. 1987. Diurnal changes in fixation, transport and allocation of carbon in the sweet potato using 11C tracer. J. Amer. Soc. Hort. Sci. 112:545-554.
Nottingham, S.F., D.D. Wilson, R.F. Severson and S.J. Kays. 1987. Feeding and oviposition preferences of the sweet potato weevil, Cylas formicarius elegantulus (Summers), on the outer periderm and exposed inner core of storage roots of selected sweet potato cultivars. Ent. Exp. Appl. 45:271-275.
Beaudry, R.M., N. Paz, C.C. Black and S.J. Kays. 1987. Banana ripening: Implication of changes in internal ethylene and CO2 concentrations, pulp fructose 2,6-bisphosphate concentration, activity of some glycolytic enzymes. Plant Physiol. 85:277-282.
Kays, S.J. 1987. Pecan quality as affected by pre- and postharvest handling, storage and marketing conditions. Part II. Pecan South 21(2):22-26.
Kays, S.J. 1985. Formulated sweet potato products. Pp. 205-218. In: Sweet Potato Products: A Natural Resource of the Tropics. J. Bouwkamp, ed., CRC Press, Boca Raton, FL.
Dull, G.G., and S.J. Kays. 1985. Vacuum packaging of pecan nutmeats. Proc. Ga. Pecan Growers Assoc. 16:51-64.
Kays, S.J., J.D. Goeschl, C.E. Magnuson, and Y. Fares. 1985. Use of the unstable isotope 11C for the study of carbon fixation, transport and allocation in root and tuber crops. Pp. 689-701. VIIth Symp. Intern. Soc. Trop. Root Crops, Guadeloupe, Inst. Nat. Rech. Agron., Paris, 939 pp.
Lyon, B.G., R.J. Horvat, and S.J. Kays. 1985. Sensory responses to five cultivars of sweet potatoes. HortScience 20:1107-1108.
Beaudry, R.M., and S.J. Kays. 1987. Effects of physical and environmental factors on the release kinetics of ethylene from (2-chloroethyl)phosphonic acid and (2-chloroethyl)methylbis (phenylmethoxy) silane. J. Amer. Soc. Hort. Sci. 112:352-359.
Kays, S.J., and R.M. Beaudry. 1987. Techniques for inducing ethylene effects. Acta Hort. 201:77-116.
Kays, S.J. 1987. Pecan quality as affected by pre- and postharvest handling, storage and marketing conditions. Part I. Pecan South 21(1):24-27.
Kays, S.J. 1985. The physiology of yield in the sweet potato. Pp. 79-132. In: Sweet Potato Products: A Natural Resource for the Tropics. J. Bouwkamp, ed., CRC Press, Boca Raton, FL.
Birth, G.S., G.G. Dull, W.T. Renfroe and S.J. Kays. 1985. Nondestructive spectrophotometric determination of dry matter in onions (Allium cepa L.). J. Amer. Soc. Hort. Sci. 110:297-303.
Beaudry, R.M., J.A. Payne and S.J. Kays. 1985. Variation in the respiration of harvested pecans due to genotype and kernel moisture level. HortScience 20:752-754.
Kays, S.J., and G.C. Sanchez. 1984. Storage of Chinese water chestnut [Eleocharis dulcis (Burm. f.) Trin.] corms. Acta Hort. 157:149-159.
McCarter, S.M., and S.J. Kays. 1984. Diseases limiting production of Jerusalem artichokes in Georgia. Plant Disease 68:299-302.
Kays, S.J. and R.J. Horvat. 1983. Insect resistance and flavor chemistry: Integration into future breeding programs. In: Breeding New Sweet Potatoes for the Tropics. F.W. Martin (ed.). Amer. Soc. Hort Sci. Tropical Region 27(B):97-106.
Kays, S.J. and R.J. Horvat. 1983. A comparison of the volatile constituents and sugars of representative Asian, Central American and North American sweet potatoes. Pp. 577-586. 6th Intern. Symp. on Trop. Root Crops.
Kays, S.J. and J.A. Payne. 1983. Ethylene production during involucre dehiscence of the Chinese chestnut. HortScience 18:238-240.
Birth, G.S., W.C. Turley, and S.J. Kays. 1982. Nondestructive determination of soluble solids in onions. Amer. Soc. Agric. Eng. 82-3063, 4 pp.
Payne, J.A., R.A. Jaynes, and S.J. Kays. 1983. Chinese chestnut production in the United States: Practice, problems, and possible solutions. Econ. Bot. 37:187-200.
Krewer, G.W., J.W. Daniell, D.C. Coston, G.A. Couvillon, and S.J. Kays. 1983. Transport of [11C]-photosynthate into young peach fruits in response to CGA-15281, an ethylene-releasing compound. HortScience 18:476-478.
Kays, S.J., R.F. Arrendale, S.D. Seeley, and G.A. Couvillon. 1983. Decomposition and metabolism of the ethylene releasing compound CGA-15281 in peach orchard soils. J. Amer. Soc. Hort. Sci. 108:661-665.
Kays, S.J., S.D. Seeley, and G.A. Couvillon. 1983. Uptake, transport and metabolism of the ethylene releasing compound CGA-15281 in the peach and metabolism in the soil. Acta Hort. 137:29-53.
Robbins, J.A., S.J. Kays, and M.A. Dirr. 1983. Enhanced rooting of wounded mung bean cuttings by wounding and ethephon. J. Amer. Soc. Hort. Sci. 108:325-329.
Kays, S. J. 1982. Storage of pecan kernels under wholesale and retail conditions. Pp.367-382. In: Controlled Atmospheres for Storage and Transport of Perishable Agricultural Commodities. D.G. Richardson and M. Meheriuk (eds.), Timber Press, Beaverton, OR.
Pallas, Jr., J.E. and S.J. Kays. 1982. Inhibition of photosynthesis by ethylene - a stomatal effect. Plant Physiol. 70:598-601.
Couvillon, G.A., S.D. Seeley, and S.J. Kays. 1982. Uptake and translocation of [14C-ethyl] labeled (2-chloroethyl)methylbis(phenylmethoxy)silane [CGA-15281] in the peach. J. Amer. Soc. Hort. Sci. 107:863-865.
Seeley, S.D., S.J. Kays, and G.A. Couvillon. 1982. Metabolism of an ethylene-releasing growth regulator (CGA-15281) in young peach fruit. J. Amer. Soc. Hort. Sci. 107:682-687.
Kays, S.J., and J.A. Payne. 1982. Analysis of physical and chemical parameters of the shells of pecan genotypes in reference to the production of phenolic plastics and resins. HortScience 27:978-980.
Chua, L.K. and S.J. Kays. 1982. Assimilation patterns of carbon-14 photosynthate in developing sweet potato storage roots. J. Amer. Soc. Hort. Sci. 107:866-871.
Kays, S.J., K.L. Chua, J.D. Goeschl, C.E. Magnuson, and Y. Fares. 1981. Assimilation patterns of carbon in developing sweet potatoes using 11C and 14C. Pp.95-118. In: Sweet Potato. R.L. Villareal and T.D. Griggs (eds.), Asian Vegetable Res. and Dev. Center, Tainan, Taiwan.
Couvillon, G.A., S.J. Kays and S.D. Seeley. 1981. Uptake and translocation of 14C-chloroethyl labeled (2-chloroethyl)methylbis(phenylmethoxy)silane, (CGA-15281), in the peach. Acta Hort. 120:241.
Chang, L.A. and S.J. Kays. 1981. Effect of low oxygen storage on sweet potato roots. J. Amer. Soc. Hort. Sci. 106:481-483.
Chua, L.K. and S.J. Kays. 1981. Effect of soil oxygen concentration on sweet potato storage root induction and development. HortScience 16:71-73.
McCarter, S.M., S.J. Kays, J.A. Payne, and F.M. Shokes. 1980. Influence of oxygen concentrations on Chinese chestnuts and their spoilage organisms. Plant Dis. 64:471-475.
Kays, S.J. and J.E. Pallas, Jr. 1980. Inhibition of photosynthesis by ethylene. Nature 285(5759):51-52.
von Waudruszka, R.M.A., C.A. Smith, and S.J. Kays. 1980. The role of iron in pecan kernel color. J. Food Sci. Tech. 13:38-39.
Kays, S.J., J. Williams, and W. Davis. 1980. Harvest of dry beans in the pre-dry stage of development: Effect on yield and processed product quality. J. Amer. Soc. Hort. Sci. 105:15-17.
Erez, A., G.A. Couvillon, and S.J. Kays. 1980. The effect of oxygen concentration on the release of peach leaf buds from rest. HortScience 15:39-41.
Kays, S.J. and G.W. Stutte. 1979. Proximal dominance and sprout formation in sweet potato [Ipomoea batatas (L.) Lam.] root pieces. Pp. 41-47. In: 5th Intern. Symp. on Trop. Root Crops.
Natarella, N. J. and S.J. Kays. 1979. Effect of storage temperature on cut flowers of Ranunculus asiaticus L. HortScience 14:504-505.
Kays, S.J., P. Gaines, and W.R. Kays. 1979. Changes in the composition of the tuber crop Oxalis tuberosa Molina during storage. Scientia Agric. 11:45-50.
Kays, S.J. 1979. Pecan kernel color changes during maturation, harvest, storage and distribution. Pecan Quarterly 13:4-12, 34.
Kays, S.J. 1979. Pecan shells. Pecan South 6:18-22.
Kays, S.J. and G.V. Odell. 1978. Pecan nut by-products and processes. United States Patent 4,098,765. 6 pp.
Kays, S.J. 1978. Changes in the internal environment of the nut during shuck split. Pecan South 5:68-70.
Kays, S.J. and D.M. Wilson. 1978. Varietal differences in pecan kernel color at harvest and during storage. Pecan South 5:18-19.
Kays, S.J. and D.M. Wilson. 1978. Gentoype variation in pecan kernel color and color stability during storage. J. Amer. Soc. Hort. Sci. 103:137-141.
Payne, J.A. and S.J. Kays. 1978. Ethephon for removal of shucks from insect-infested pecan fruits. J. Econ. Entomol. 71:5-6.
Wilson, D.M., S.J. Kays, and B. Etherton. 1978. The relationship between pathogenic fungal metabolites (fusaric and picolinic acid), endogenous ethylene evolution and the development of ethylene like symptoms. Plant and Soil 50:355-362.
Kays, S.J. and M.J. Hayes. 1978. Induction of ripening in the fruits of Momordica charactia, L. by ethylene. Tropical Agric. 55:167-172.
Jaworski, C.A., S.J. Kays, and D.A. Smittle. 1978. Effects of nitrogen and potassium fertilization in trickle irrigation on yield of pepper and polebean. HortScience 13:477-478.
Kays, S.J. and J.W. Williams. 1977. For processing - savoy or smooth leaf spinach? Ark. Farm Res., Sept.-Oct., p. 15.
Williams, J.W., W.A. Sistrunk, and S.J. Kays. 1977. Response of tomato cultivars to ethephon. Ark. Farm Res., Sept.-Oct., p. 15.
Todd, J.W., S.J. Kays, and S.E. Kays. 1977. A precision low-flow-rate air delivery system for use with olfactometers. J. Chem. Ecol. 3:519-525.
Kays, S.J. 1977. Influence of the nut's internal oxygen partial pressure on the induction of pigmentation in the kernels of pecan. J. Amer. Soc. Hort. Sci. 102:531-533.
Poenicke, E.F., S.J. Kays, D.A. Smittle, and R.E. Williamson. 1977. Ethylene in relation to postharvest quality deterioration in processing cucumbers. J. Amer. Soc. Hort. Sci. 101:449-451.
Kays, S.J. and D.M. Wilson. 1977. Effect of subatmospheric pressure and oxygen partial pressure on the color stability of stored pecan kernels. Lebensmittel-Wissenschaft-Technologie 10:109-110.
Kays, S.J. and D.M. Wilson. 1977. Chronological sequence of pigment development in the kernels of pecan cultivar ‘Stuart’. Scientia Hort. 6:213-222.
Kays, S.J. and D.M. Wilson. 1977. Alteration of pecan kernel color. J. Food Sci. 42:982-988.
Kays, S.J., W.A. Sistrunk, J.W. Williams, and M. B. Neely. 1976. Snap bean studies. Ark. Agric. Expt. Sta. 23 p.
Kays, S.J. and D.M. Wilson. 1976. Pecan kernel color. Pecan South 3:471-473.
Kays, S.J. and D.M. Wilson. 1976. Pecan kernel pigmentation. Proc. Georgia Pecan Gr's Assoc. 7:56-62.
Kays, S.J., A.W. Johnson, and C.A. Jaworski. 1976. Multiple cropping with trickle irrigation. HortScience 11:135-136.
Sumner, D.R., S.J. Kays, and A.W. Johnson. 1976. Etiology and control of root diseases of spinach. Phytopathology 66:1267-1273.
Smittle, D.A. and S.J. Kays. 1976. Quality deterioration of southern peas in commercial operations. HortScience 11:151-153.
Kays, S.J., C.A. Jaworski, and H.C. Price. 1976. Defoliation of pepper transplants in transit by endogenously-evolved ethylene. J. Amer. Soc. Hort. Sci. 101:449-451.
Kays, S.J. 1975. Production of New Zealand spinach (Tetragonia expansa, Murr.) at high plant densities. J. Hort. Sci. 50:135-141.
Kays, S.J. and M.E. Austin. 1975. Use of growth regulators for increased quality of New Zealand spinach. HortScience 10:416-417.
Goeschl, J.D. and S.J. Kays. 1975. Concentration dependencies of some effects of ethylene on etiolated pea, peanut, bean and cotton seedlings. Plant Physiol. 55:670-677.
Kays, S.J., T.F. Crocker, and R.E. Worley. 1975. Concentration dependencies of ethylene on shuck dehiscence and fruit and leaf abscission of Carya illinoensis (Wang.) K. Koch. J. Agric. Food Chem. 23:1116-1118.
Sumner, D.R. and S.J. Kays. 1974. Spinach (Spinacea oleracea) root rot; Rhizoctonia solani, Fusarium spp., Pythium spp. Fungicide Nematicide Tests 27:78.
Kays, S.J. and C.W. Nicklow. 1974. Plant competition: Influence of density on water requirements, soil gas composition and soil compaction. J. Amer. Soc. Hort. Sci. 99:166-171.
Kays, S.J. and J.L. Harper. 1974. The regulation of plant and tiller density in a grass sward. J. Ecol. 62:97-105.
Kays, S.J., C.W. Nicklow, and D.H. Simons. 1974. Ethylene in relation to the response of roots to physical impedance. Plant and Soil 40:565-571.