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American Potato Journal

, Volume 19, Issue 7, pp 144–149 | Cite as

Incidence of hollow heart in potatoes as influenced by removal of foliage and shading

  • F. A. Keantz
  • E. P. Lana
Article

Summary

The removal of foliage at successive stages of tuber development in 1940 and 1941 caused a decrease in the number of hills free from hollow heart when applied at the time of tuber setting but not at later periods.

Shading the plants with black sateen cloth for intervals of 5 and 10 days tended to increase the number of hills free from hollow heart when applied at time of tuber setting but had no effect when applied 21 days later.

Approximately the same incidence of hollow heart was observed in hills harvested when their average weight was 157 grams and the average tuber weight was 7.5 grams, as when the plants matured and. the average weight per hill was 776 grams and the average tuber weight 53 grams.

The removal of 20, 40, 60, and 80 per cent of the foliage did not significantly influence the average number of tubers set per hill, the mean yield per hill, nor the mean weight of the individual tubers. The removal of foliage was followed by a very active renewal of vine growth and a delayed maturity of the vine. This active renewal of vine growth may have been a significant contributing factor in increasing the incidence of hollow heart in the early period of tuber enlargement.

Keywords

Hollow Heart Tuber Development Individual Tuber Active Renewal Tuber Setting 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature Cited

  1. 1.
    Levitt, J., A histological study of hollow heart of potatoes, Amer. Potato Jour. 19:134-144.Google Scholar
  2. 2.
    Moore, H. C, Some studies in hollow heart of potatoes. Proc. Potato Association of America for 1925. Pp. 41–46.Google Scholar
  3. 3.
    Moore, H. C, 1926. Hollow heart of potatoes—a report of experiments conducted in 1926. Proc. Potato Association of America for 1926. Pp. 180–182.Google Scholar
  4. 4.
    Werner, H. O., 1926. The hollow heart situation in the Russet Rural potato. Proc. Potato Association of America for 1926. Pp. 45–51.Google Scholar
  5. 5.
    Werner, H. O., 1927. Hollow heart of potatoes: occurrence and test of thiourea seed treatments for prevention. Proc. Potato Association of America for 1927. Pp. 71–78.Google Scholar

Copyright information

© Springer 1942

Authors and Affiliations

  • F. A. Keantz
    • 1
  • E. P. Lana
    • 1
  1. 1.Minnesota Agricultural Experiment Station, University FarmSt. Paul

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