Premium
Studies on potassium nutrition of plants. II. —Some effects of potassium deficiency on the organic acids of leaves
Author(s) -
Freeman G. G.
Publication year - 1967
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740181205
Subject(s) - potassium , chemistry , potassium deficiency , organic acid , shikimic acid , agronomy , food science , horticulture , biology , biochemistry , organic chemistry
Leaf organic acids of a series of plants have been determined by silica gel chromatography. Red beet and cabbage were grown in sand culture at six levels of potassium nutrition ranging from extreme deficiency to high potassium concentration. Potassium deficiency in cabbage, beet and potato leaves resulted in large increases of total organic acids, whereas there was a decrease in lettuce and no effect in Italian rye grass. Volatile organic acids of cabbage leaf were quantitatively minor components but at two extreme levels of potassium nutrition, they were present in the same relative proportions as total organic acid. Shikimic acid was tentatively identified in field‐grown rye grass (0.96% of dry weight).