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Organic Acids of Maize ( Zea mays L.) as Influenced by Mineral Deficiencies 1
Author(s) -
Clark Ralph B.
Publication year - 1968
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1968.0011183x000800020007x
Subject(s) - zea mays , organic acid , citric acid , biology , poaceae , nutrient , magnesium , mineral , botany , zoology , agronomy , horticulture , food science , biochemistry , chemistry , ecology , organic chemistry
Krebs cycle acids of young corn leaves have been related to K, P, Ca, Mg, S, Fe, Mn, B, Cu, and Zn deficiencies. The total organic acid content of all the mineraldeficient leaves was higher than that of nondeficient leaves. The predominant acid in nondeficient leaves was t‐aconitate. The greatest organic acid changes were noted for K‐, Ca‐, Mg‐, and P‐deficlent leaves, where t‐aconitate decreased and malate and citrate increased. Potassiumdeficient leaves exhibited the most pronounced change where t‐aconitate decreased fourfold with a simultaneous fourfold increase of malate and citrate. Proportional changes were not observed for the other nutrient‐deficiencies.