Abstract
The Visual symptoms of stress have precursors in histological aberrations and these have precursors in changes of the chemical composition of a plant or cell. Some of these variations are characteristic for the inducing factor. Each nutrient in the minimum induces other alterations compared to a normal plant because the nutrients have different functions and the symptoms start to develop in the very spot where there is a lack of this function. Toxicity may also induce typical symptoms.

This publication has 5 references indexed in Scilit: