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Agronomy Journal Abstract -

Potato Yield and Tuber Shape as Affected by Severe Soil-Moisture Deficits and Plant Spacing1


This article in AJ

  1. Vol. 48 No. 11, p. 488-492
    Received: Apr 20, 1956

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  1. J. S. Robins and
  2. C. E. Domingo2



Total and U.S. No. 1 grade yield of Russet Burbank variety potatoes was reduced up to 30% and 58%, respectively, by soil-moisture stress. Spindled tubers resulted from stress at any time following tuber initiation. Location and intensity of the growth constriction corresponded to the time and intensity of the imposed stress. Late-season stress hastened maturity and reduced growth cracking whereas mid-season stress increased growth cracking. Knobby second-growth was essentially independent of moisture in these experiments.

Reduced stem populations resulted in a lower yield and number of tubers and a higher percentage of tubers with knobby second-growth and growth cracks.

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