American Potato Journal

, Volume 68, Issue 5, pp 287–297 | Cite as

Effect of plant population and harvest timing on yield and chipping quality of Atlantic and Norchip potatoes at two Iowa locations

  • D. A. DeBuchananne
  • V. F. Lawson


The effect of plant population and harvest timing on potato yield and chipping quality was studied at two Iowa locations during 1986, 1987, and 1988. Evaluations were conducted in eastern Iowa near Muscatine and in western Iowa at Whiting. The cultivars Atlantic and Norchip were planted at in-row spacings of 15, 31, and 46 cm and were harvested approximately 12, 14, and 16 weeks after planting. Delaying harvest until 14 or 16 weeks after planting resulted in greater yields and better specific gravities for both cultivars. At Muscatine, chip color was not significantly affected by harvest date, but at Whiting, each successive harvest produced lighter-colored chips. Greater seed piece populations increased both Atlantic arid Norchip yields. Greater planting populations also caused a small increase in specific gravity. Seed spacing did not significantly affect chip color. In comparison with Norchip, Atlantic produced tubers with higher specific gravities throughout the season and greater total yields on the final harvest date. Atlantic did, however, show susceptibility to hollow heart. The incidence of hollow heart was reduced by close seed spacing.

Additional Key Words

Tuber yield chip processing 


Durante 1986, 1987 y 1988 se estudió en dos localidades de Iowa el efecto de la población de plantas y del momento de la cosecha sobre el rendimiento y la calidad de fritura a la inglesa de la papa. Se condujeron evaluaciones cerca de Muscatine, al este de Iowa, y en Whiting, al oeste del mismo estado. Los cultivares Atlantic y Norchip fueron sembrados a distanciamientos de 15, 31 y 46 cm entre plantas y fueron cosechados aproximadamente a las 12, 14 y 16 semanas después de la siembra. Atrasando la cosecha hasta las 14 o 16 semanas después de la siembra dio como resultado rendimientos más altos y mejores densidades específicas para ambos cultivares. En Muscatine, el color de la papa frita a la inglesa no fue afectada de manera significativa por la fecha de cosecha, pero en Whiting, cada cosecha sucesiva produjo papas fritas de color más claro. Las poblaciones de semilla más grande incrementaron los rendimientos tanto de Atlantic como de Norchip. Las poblaciones más densas produjeron también un pequeño incremento de la gravedad específica. El distanciamiento de la semilla no afectó significativamente el color de las papas fritas a la inglesa. En comparición con Norchip, Atlantic produjo tubérculos con gravedades especificas más altas durante toda la temporada y mayores rendimientos totales en la última fecha de cosecha. Sin embargo, Atlantic mostró susceptibilidad al corazón vacío. La incidencia del corazón vacío se redujo con un menor distanciamiento.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature Cited

  1. 1.
    Gould, W.A. 1976.Quality Assurance Manual for the Manufacture of Potato Chips and Snack Foods. PC/SFA Publication, Euclid, OH.Google Scholar
  2. 2.
    Iritani, W.M., R. Thornton, L. Weller and G. O’Leary. 1972. Relationships of seed size, spacing, and stem numbers to yield of Russet Burbank potatoes. Am Potato J 49: 463–469.Google Scholar
  3. 3.
    Miller, R.A., J.D. Harrington and G.D. Kuhn. 1975. Effect of variety and harvest date on tuber sugars and chip color. Am Potato J 52: 379–386.CrossRefGoogle Scholar
  4. 4.
    Nelson, D.C. 1970. Effect of planting date, spacing and potassium on hollow heart in Norgold Russet potatoes. Am Potato J 47: 130–135.Google Scholar
  5. 5.
    Nelson, D.C. 1976.Rotations, Seed Selection, Planting and Growing.In: Lana, E.P. (Ed.) Potato Production in North Dakota, pp. 15–20, Ext Bull 26. North Dakota State University, Fargo, North Dakota.Google Scholar
  6. 6.
    Nelson, D.C. and J.R. Sowokinos. 1983. Yield and relationships among tuber size, sucrose and chip color in six potato cultivars on various harvest dates. Am Potato J 60: 949–958.CrossRefGoogle Scholar
  7. 7.
    Nelson, D.C. and M.C. Thorenson. 1986. Relationships between tuber size and time of harvest to hollow heart initiation in dryland Norgold Russet Potatoes. Am Potato J 63: 155–161.CrossRefGoogle Scholar
  8. 8.
    Painter, C.G., R.E. Ohms and A. Walz. 1977. The effect of planting date, seed spacing, nitrogen rate and harvest date on yield and quality of potatoes in southwestern Idaho. Idaho Agric Exp Stn Res Bull 571: 1–15.Google Scholar
  9. 9.
    Rex, B.L., W.A. Russell and H.R. Wolfe. 1987. The effect of spacing of seed pieces on yield, quality and economic value for processing of Shepody potatoes in Manitoba. Am Potato J 64: 177–189.CrossRefGoogle Scholar
  10. 10.
    Santerre, C.R., J.N. Cash and R.W. Chase. 1986. Influence of cultivar, harvest-date and soil nitrogen on sucrose, specific gravity and storage stability of potatoes grown in Michigan. Am Potato J 63: 99–110.CrossRefGoogle Scholar
  11. 11.
    White, R.P. and J.B. Sanderson. 1983. Effect of planting date, nitrogen rate and plant spacing on potatoes grown for processing in Prince Edward Island. Am Potato J 60: 115–126.CrossRefGoogle Scholar

Copyright information

© 1991 1991

Authors and Affiliations

  • D. A. DeBuchananne
    • 1
  • V. F. Lawson
    • 2
  1. 1.Empire Chestnut CompanyCarrollton
  2. 2.Department of HorticultureIowa State UniversityAmes

Personalised recommendations