In some plants like corn, production of anthocyanins may cause red or purple color. Potassium Plants are stunted and exhibit a yellow mottling on the leaves, which curl and crinkle. Necrotic areas are seen on the leaf t tips and edges and the leaves eventually show an overall yellowing. In the early stages, there may be some yellowing of the younger leaves. Untimately an over-all pale green may dominate.
Growth continues normally.
Eventually the apical leaves appear quite yellow to white. All of the micronutrients are missing in the unknown. Record the symptoms you observe each week for each of the series in your lab section and also measure the total height of the plants in the series you prepared. At harvest the class will identify the unknowns. Magnesium Sulfur Iron Make sure to specify if you observed differences between the species used.