Tolerance of Seven Woody Ornamentals to Soil-Applied Sodium Chloride    (View PDF)

Michael A. Dirr

Abstract: Two-year-old seedlings of seven woody ornamental species ranging in reported salt tolerance from good to poor were salinized with 250 ml of 0.25 N NaCl applied daily to the soil. Elaeagnus angustifolia and Rosa rugosa were not injured and contained the lowest leaf levels of Na and Cl. Elaeagnus umbellatus and Prunus tomentosa showed the greatest injury while Acer platanoides, Prunus besseyl, and Rhus glabra were intermediate in tolerance. Leaf Na contents did not reflect the degree of injury among Elaeagnus umbellatus, Prunus tomentosa, Acer platanoides, Prunus besseyl, and Rhus glabra. However, leaf Cl content in all injured species was greater than 2.5 percent and more accurately reflected the severity of injury although the most seriously injured species did not contain the greatest leaf CI levels.

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https://doi.org/10.48044/jauf.1978.038