It directly influences photosynthesis by participating in the synthesis of chloroplasts. Influences energy reserve by regulating carbohydrate metabolism.
It acts on the reduction of nitrates in plants is only possible if there is enough manganese. Increases secondary root growth. Stimulates plant growth by influencing the growth of cell extension. Like copper, manganese is important for the immobilization of oxygen free radicals. Manganese and magnesium increase the concentration of key ingredients such as citric acid and vitamin C. These increase the quality of frozen vegetables.
Deficiency – Older leaves, leaf bases show brownish black spots as a consequence of MnO2 accumulations. Subsequently, these spots present chlorotic edges.