POTASSIUM IN PLANT METABOLISM. I. EFFECTS OF LIGHT ON THE MINERAL COMPOSITION OF NORMAL AND POTASSIUM-DEFICIENT WHEAT SEEDLINGS
- 1 July 1958
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Plant Science
- Vol. 38 (3) , 292-299
- https://doi.org/10.4141/cjps58-048
Abstract
Normal and potassium-deficient wheat seedlings were grown in sand culture under controlled environmental conditions in a growth chamber. Successive crops were subjected to varying photoperiods and light intensities. Chemical analysis of tissues of the 14-day seedlings indicated that any restriction of light intensity or duration resulted in higher levels of potassium in the plant, when potassium was available. Phosphorus decreased with increasing photoperiod. Levels of calcium, magnesium, iron, copper and manganese were not directly related to illumination. Chlorosis due to potassium deficiency showed a correlation with high phosphorus/iron ratios.Keywords
This publication has 1 reference indexed in Scilit:
- The Phosphorus-Iron Relationship in Genetical Chlorosis.Plant Physiology, 1955