1980•Canadian Journal of Plant ScienceRequires access

EFFECT OF TWO RELATIVE HUMIDITIES ON FOLIAR ABSORPTION OF NaCl

Arthur C. Foster, M. A. Maun

Abstract

White cedar (Thuja occidentalis L.) plants sprayed with deicing salt and kept at 91–100% relative humidity even for 1 day exhibited necrosis of foliage. However, sprayed trees kept at a relative humidity of 50–70% for 20 days showed only slight yellowing of leaf tips. Significantly greater amounts of Na and Cl ions were found in the foliage of plants maintained at high relative humidity.

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Key concepts: Relative humidity, Horticulture, Humidity, Chemistry, Botany, Thuja, Salt (chemistry), Agronomy