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Elkton: A New Potato Variety with Resistance to Internal Heat Necrosis and Hollow Heart and Suitable for Chipping Directly from the Field in the Southern United States

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Abstract

Elkton is a medium to medium-late maturing potato variety with tan netted-skin, round-oval tubers, and white-flesh. Average marketable yields ranged from 76 % to 113 % of Atlantic and average specific gravities ranged from −0.002 to −0.006 less than Atlantic depending on location. Chip color processed directly from the field in southern locations or from storage in the northern locations is equivalent to Atlantic. Elkton is resistant to internal heat necrosis and hollow heart. Color and texture ratings of Elkton following baking, boiling and microwaving have been similar to Atlantic. Elkton is moderately resistant to early blight and Verticillium wilt; moderately susceptible to foliar late blight and susceptible to tuber late blight; moderately susceptible to powdery scab; and, susceptible to potato virus Y and potato virus S. Its reaction to common scab has been inconsistent. Plant Variety Protection has been requested for Elkton.

Resumen

Elkton es una variedad de papa de madurez media a media-tardía, de piel bronceada rugosa, de tubérculos redondos a ovales y pulpa blanca. El promedio de rendimientos comerciales varió de 76 % a 113 % de Atlantic y los promedios de las gravedades específicas fluctuaron de −0.002 a −0.006 menos que Atlantic dependiendo de la localidad. El color de la hojuela procesada directamente del campo en las localidades del sur o del almacén en las localidades del norte es el equivalente a Atlantic. Elkton es resistente a la necrosis interna por calor y al corazón hueco. Las calificaciones en color y textura de Elkton después de cocinadas, hervidas y de microondas han sido similares a Atlantic. Elkton es moderadamente resistente al tizón temprano y a la marchitez por Verticillium; es moderadamente susceptible al tizón tardío foliar y susceptible al tizón tardío del tubérculo; moderadamente susceptible a la roña polvorienta; y susceptible a los virus Y y S de la papa. Su reacción a la roña común ha sido inconsistente. Se ha solicitado la Protección de la Variedad de la Planta para Elkton.

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Acknowledgments

The authors thank USDA/ARS technicians Bonnie Adams, Merle Bragg, Karl DeLong, Brent Dyer, Karen Frazier, and Avery O’Donnell for their assistance in the laboratory and the field; Shelley Jansky, USDA/ARS at University of Wisconsin-Madison, for conducting the National Verticillium Wilt Trial; Christian Thill and James Bradeen, University of Minnesota, for participating in the National Late Blight and National Common Scab Trials; Richard Novy and Jonathan Whitworth, USDA/ARS-Aberdeen, ID, for participating in the National Common Scab Trials; and, David Douches and Willie Kirk, Michigan State University, Gary Secor, North Dakota State University, Isabel Vales and Solomon Yilma, Oregon State University, for their participation in the National Late Blight Trials.

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Correspondence to K. G. Haynes.

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Haynes, K.G., Gergela, D.M., Qu, X.S. et al. Elkton: A New Potato Variety with Resistance to Internal Heat Necrosis and Hollow Heart and Suitable for Chipping Directly from the Field in the Southern United States. Am. J. Potato Res. 91, 269–276 (2014). https://doi.org/10.1007/s12230-013-9347-7

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  • DOI: https://doi.org/10.1007/s12230-013-9347-7

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