Abstract
Research plots were established in 1996 and 1997 at Klamath Falls and Hermiston, Oregon and Tulelake, California to determine: 1) the extent of seedborne PVY spread during the growing season; 2) effects of seedborne PVY on yield and grade of Russet Norkotah; and 3) the economic consequences of varying levels of seedborne PVY infections. A series of 5 treatments evaluated initial PVY infection levels of 1 to 60% in 1996 and 1 to 98% in 1997. Virus spread occurred earlier and was more extensive at Hermiston than at Klamath Falls or Tulelake. Plants derived from PVY-free seed were nearly 100% PVY infected at early senescence at Hermiston. Comparisons of potatoes grown from PVY-free seed versus potatoes grown from seed where initial PVY infection levels were 60% in 1996 and 100% in 1997 showed seedborne PVY infection at these levels reduced U.S. No. 1 yields by an average of 40% at Hermiston, 20% at Tulelake, and 12% at Klamath Falls. Predicted total yield losses were 0.19, 0.12, and 0.08 Mg ha−1 for each percent of PVY infection at HAREC, IREC, and KES, respectively. Reductions in gross crop value were estimated at 39, 26, and 14%, respectively, based on regression analyses.
Similar content being viewed by others
Abbreviations
- KES:
-
Klamath Experiment Station
- HAREC:
-
Hermiston Agricultural Research and Extension Center
- IREC:
-
Intermountain Research and Extension Center
Literature Cited
Bonde, R., E.S. Schultz, and W.P. Raleigh. 1943. Rate of spread and effect on yield of potato virus diseases. Maine Agric Stat Bull. 421, 28 pp.
Clark, MF. and A.N. Adams. 1977. Characteristics of the microplate method of enzyme-linked immunosorbent assay for detection of plant viruses. J Gen Virol 34:475–484.
Mondjana, A.M., D.I. Rouse, and T.L. German. 1993. The impact of PVY on potato yield and severity of early dying. Am Potato J 70:829 (abstract).
Author information
Authors and Affiliations
Additional information
Approved for publication by Oregon State University Agricultural Communications as Technical paper No. 11345.
Rights and permissions
About this article
Cite this article
Rykbost, K.A., Hane, D.C., Hamm, P.B. et al. Effects of seedborne potato virus Y on Russet Norkotah performance. Amer J of Potato Res 76, 91–96 (1999). https://doi.org/10.1007/BF02855205
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02855205