Effect of Manganese Toxicity on the Indoleacetic Acid Oxidase System of Cotton

Abstract
The effect of substrate manganese on tissue manganese levels and activity of the indoleacetic acid (IAA)-oxidase system of cotton (Gossypium hirsutum, L.) was investigated. A sand culture technique was used with 1, 3, 9, 27 and 81 mg manganese (MnSO4) per liter nutrient solution applied in various experiments.