Publications

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Coolong, T.M. and W.M. Randle.  2003Sulfur and Nitrogen Availability Interact to Affect the Flavor Biosynthetic Pathway in Onion.  J. Amer. Soc. Hort. Sci.  128(5): 776-783.

 

Coolong, T.M. and W.M. Randle.  2003.  Temperature Influences Flavor Intensity and Quality in 'Granex 33' Onion.  J. Amer. Soc. Hort. Sci. 128 (2):176-181. 

 

Kopsell, D.E., W.M. Randle, and N.E.Schmidt.  2002.  Incubation Time, Cultivar, and Storage Duration Affect Onion Lachrymatory Factor Quantification.  Hort. Sci. 37 (3): 567-570.

 

Randle, W.M., D.E. Kopsell, and D.A. Kopsell. 2002.  Sequentially Reducing Sulfate Fertility During Onion Growth and Development Affects Bulb Flavor at Harvest.   Hort. Sci. 37(1):118-121

 

Randle, W.M. 2001.  Opportunities and Strategies For Manipulating Onion Flavor.  Acta Hort. 555: 57-61.

 

Kopsell, D.A., W.M.  Randle, M.A.  Eiteman.  2001Changes in S-alk(en)yl Cysteine Sulfoxides and Precursor Intermediates During Storage Among Short and Long Day Onion Cultivars.  Acta Hort.  555:153-156.

 

Randle,W.M. 2000. Increasing Nitrogen Concentration in Hydroponic Solutions Affects Onion Flavor and Bulb Quality. J. Amer. Soc. Hort. Sci. 125(2):254-259

 

Randle, W.M., D.E. Kopsell, D.A. Kopsell, and R.L. Snyder. 1999. Total Sulfur and Sulfate Accumulation in Onion is Affected by Sulfur Fertility  J. Plant Nutrition. 22(1), 45-51

 

Kopsell, D.A. and W.M. Randle. 1999. Selenium Affects the S-alk(en)yl Cysteine Sulfoxides among Short-day Onion Cultivars  J. Amer. Soc. Hort. Sci. 124(3):307-311

 

Kopsell, D.E., W.M. Randle and M.A. Eiteman. 1999. Changes in the S-alk(en)yl Sulfoxides and their Biosynthetic Intermediates during Onion Storage. J. Amer. Soc. Hort. Sci. 124(2):177-183 

 

Lancaster, J.E., M.L. Shaw, and W.M. Randle. 1998. Differential Hydrolysis of Alk(en)yl Cysteine Sulphoxides by Alliinase in Onion Macerates: Flavour Implications.J. Sci. Food. Agric. 78:367-372

 

Randle, W.M., D.A. Kopsell, D.E. Kopsell, R.L. Snyder, and R. Torrance. 1998 Field sampling short-day onions for bulb pungency. HortTechnology 8:329-332 

 

Kopsell, D.A. and W. M. Randle. 1997. Short-day onion cultivars differ in bulb selenium sulfur accumulation which can affect bulb pungency.   Euphytica. 96:385-390 

 

Kopsell, D.A. and W. M. Randle. 1997. Selenate concentration affects selenium and sulfur uptake and accumulation by 'Granex 33' onions. J. Amer. Soc. Hort. Sci. 122:721-726

 

Kopsell, D.E. and W.M. Randle, 1997. Onion cultivars differ in pungency and bulb quality changes during storage. HortScience 32:1260-1263

 

Randle, W.M. 1997. Onion flavor chemistry and factors influencing flavor intensity, p. 41-52. In: S.J. Risch and C. Ho (eds.). Spices: Flavor chemistry and antioxidant properties. Amer. Chem. Soc., Wash., D.C.

 

Havey, M.J. and W.M. Randle. 1996. Combining abilities for yield and bulb quality among long- and intermediate-day open-pollinated onion populations. J. Amer. Soc. Hort. Sci. 121:604-608.

 

Randle, W.M., J.E. Lancaster, M.L. Shaw, K.H. Sutton, R.L. Hay, and M.L. Bussard. 1995. Quantifying onion flavor compounds responding to sulfur fertility-Sulfur increases levels of alk(en)yl cysteine sulfoxides and biosynthetic intermediates.   J. Amer. Soc. Hort. Sci. 120:1075-1081.

 

Randle, W.M., E. Block, M.H. Littlejohn, D. Putnam, and M.L. Bussard. 1994. Onion (Allium cepa L.) thiosulfanates respond to increasing sulfur fertility. J. Agr. Food Chem. 42:2085-2088.

 

Randle, W.M. 1993. Pungency and sugars of short-day onions as affected by sulfur nutrition. J. Amer. Soc. Hort. Sci. 118:766-770.

 

Randle, W.M. and M.L. Bussard. 1993. Streamlining onion pungency analyses. HortScience 28:60.

 

Randle, W.M., M.L. Bussard, and D.F. Warnock. 1993.   Ontogeny and sulfur fertility affect leaf sulfur in short-day onions. J. Amer. Soc. Hort. Sci. 118:762-765.

 

Warnock, D.F., W.M. Randle, and O.M. Lindstrom, Jr. 1993. Photoperiod, temperature, and plant age interact to affect short-day onion cold hardiness. HortScience 28:1092-1094.

 

Randle, W.M. 1992. Onion germplasm interacts with sulfur fertility for plant sulfur utiltization and bulb pungency. Euphytica 59:151-156.

 

Randle, W.M. 1992. Sampling procedures to estimate flavor potential in onion. HortScience 27:1116-1117.

 

Randle, W.M. 1992. Sulfur nutrition affects nonstructural water-soluble carbohydrates in onion germplasm. HortScience 27:52-55.

 

Gamiely, S., W.M. Randle, H.A. Mills, and D.A. Smittle. 1991. A rapid and nondestructive method for estimating leaf area of onions.  HortScience 26:206.

 

Gamiely, S., W.M. Randle, H.A. Mills, D.A. Smittle, and G.I. Banna.1991.Onion plant growth, bulb quality, and water uptake following ammonium and nitrate nutrition. HortScience 26:1061-1063.

 

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