Ion Absorption by a Woody Plant with Episodic Growth
Open Access
- 1 June 1983
- journal article
- Published by American Society for Horticultural Science in HortScience
- Vol. 18 (3) , 357-359
- https://doi.org/10.21273/hortsci.18.3.357
Abstract
Rooted cuttings of Euonymus japonica Thunb. were grown in solution culture for 3 months and rates of NO3-, Ca2+, K+, and Mg2+ absorption were measured by their disappearance from solution. During shoot elongation, absorption rates for these ions declined and the pH of the nutrient solution decreased to about 4. As a flush of shoot elongation ended, the absorption rates for the ions rose to much higher levels and the pH of the nutrient solution increased to 6 or above. The changes in the nutrient solution pH appear to be caused by changes in the relative cation-anion absorption.Keywords
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