Effect of Chloride on Phosphorus Uptake by Corn Roots
1967
Carter, O. G. | Lathwell, D. J.
A study was made on the effect of KCl on P uptake by 20-day-old corn seedlings grown in water culture and 4-day-old excised corn roots grown on 0.2 mM CaSO₄ solution. All P solutions were adjusted to pH 4. Those used for excised roots contained 0.2 mM CaSO₄ and those used for 20-day-old corn seedlings contained 1.2 mM KNO₃, 0.8 mM Ca(NO₃)₂, and 0.4 mM MgSO₄. One-hour absorption periods using concentrations up to 0.l M KCl showed no effect on ³² uptake from 2 to 260 µM KH₂PO₄ solutions with either type of plant material.
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