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American Potato Journal

, Volume 60, Issue 8, pp 569–576 | Cite as

Comparison of growth and yield parameters of Russet Burbank for a two-year period

  • Jeoung Lai Cho
  • W. M. Iritani
Article
  • 30 Downloads

Abstract

The effect of three planting dates on stem, stolon, tuber number and size were compared throughout the 1979 and 1980 growing seasons.

A relatively warm April and early May and a relatively cool late May and June in 1980 resulted in significantly higher stem and stolon numbers and a tuber population over double that of 1979. The highest average commercial yields ever recorded in the Columbia Basin were obtained with yields in some fields of 100 tons per ha on 48 hectare irrigation circles.

On experimental plots tuber numbers increased from the latter part of May with successive sampling dates until late June and early July when a peak in number was reached after which a significant decline in number occurred. The decrease in tuber number was attributed to the phenomenon of reabsorption which was much greater with later planted potatoes. It occurred only in tubers of approximately 10 g size or smaller. Average tuber size in 1980 was one-half that of 1979 although total yield was 25 tons per ha higher because of significantly larger tuber numbers.

Key Words

Comparison yield parameters Russet Burbank 

Resumen

Se comparó el número y tamaño de tallos, estolones y tubérculos como resultado de tres fechas de siembra y el efecto fue comparado durante los períodos de crecimiento correspondientes a 1979 y 1980.

Un mes de Abril relativamente cálido y asimismo los primeros días de Mayo pasando a relativamente frío a fines del mismo mes, prolongándose el frío durante Junio de 1980; trajo consigo un número significativamente mayor de tallos y estolones y una población de tubérculos que duplicó con más la correspondiente a 1979. Se obtuvo los rendimientos históricamente más altos en promedio para la olla hidrográfica de Columbia; alcanzándose en algunos campos, de circulos irrigados de 48 hectáreas, hasta 100 toneladas por hectárea.

En campos experimentales que fueron muestreados en forma sucesiva los números de tubérculos aumentaron desde los últimos días de Mayo, a través de Junio, alcanzando un climax a principios de Julio para luego declinar significativamente. Se atribuyó la merma en el número de tubérculos a un fenómeno de reabsorción que fue más marcado en las plantas sembradas más tardiamente. El efecto se presentó en tubérculos de 10 gramos o menos. El tamaño promedio de los tubérculos en 1980 fue la mitad del correspondiente a 1979, sin embargo, el rendimiento total fue 25 toneladas por hectárea mayor, debido al número significativamente mayor de tubérculos producidos.

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Copyright information

© Springer 1983

Authors and Affiliations

  • Jeoung Lai Cho
    • 1
  • W. M. Iritani
    • 1
  1. 1.Washington State UniversityPullman

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