The Effect of Mineral Nutrition on the Content of Free Amino Acids and Amides in Tomato Plants I A Comparison of the Effects of Deficiencies of Copper, Zinc, Manganese, Iron, and Molybdenum

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Abstract
The lovel and the qllHnj~itat,jve compositien of the free amino acid fraction of tomato plants grown in full nutrient and in cultures doficiollt ill zinc, copper, nlallganeso, iron. and molybdenum have beon cletormiuecl. 'I'he methods used in the investigation inelude the quantitative estimation of amino aeids by a technique involving paper chromatogl'l1phy, and the cultm'o of tomato plants in highly purified n utriollt solutions.