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Diagnosing Potassium Deficiency in American Elm, Silver Maple, Russian Olive, Hackberry, and Box Elder

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Abstract:

Ulmus americana, Acer saccharinum, Elaeagonus angustifolia, Celtis occidentalis, and Acer negundo were grown in solutions containing +K+Na, -K+Na, +K-Na, -K-Na. In addition Ulmus americana seedlings were grown at all possible combinations of +K or -K and three levels of P. The -K seedlings grew less; their old leaves became necrotic and their young leaves, chlorotic. The leaf discolorations and reduced growth were associated with definite low concentrations of K in the leaves. Na and P concentrations in the supply or in the leaves did not affect deficiency, except that plants supplied low P had no terminal chlorosis. The origins of the terminal chlorosis are discussed.

Document Type: Journal Article

Affiliations: Asst. Prof., School of Forestry, Univ. of Minn.

Publication date: 1965-09-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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