functions of copper in plants
Copper is very important in terms of plant physiology. It is involved in many complex events such as vitamin, carbohydrate and protein synthesis, photosynthesis and respiration. It is of great importance in the development of plants in terms of reproductive organs and yield. It concentrates in the roots of copper plants, and serves for nitrogen metabolism and the use of proteins. It is a building block of various enzymes. It forms part of the enzymes that use carbohydrates and proteins.
In case of deficiency, drying occurs on shoot tips and brown spots occur on terminal leaves. Copper binds to organic substances tightly and deficiencies can be seen in soils rich in organic substances. It does not disappear easily from the soil, but can be found in a way that plants cannot take. Plants take copper in very small quantities. There is competition between heavy metals such as iron, manganese, zinc and nickel in the purchase of copper. Transport in plants occurs at a rate of 99% in xylem sap and no transport occurs in the phloem. This transport depends on the transplant current. Copper can be transferred from old leaves to young leaves even if a little.
copper deficiency in plants
Young leaves appear stagnant and distorted. The leaves are narrow and slightly elongated. Leaf edges are wavy. Drying may be seen at the ends of terminal branches in fruit trees. Generally, copper and zinc deficiency occurs together and it becomes more severe in soils with high pH.
Copper capacity of plants is around 4-20 ppm in vegetative organs. Deficiency limit is accepted as 4 ppm. The deficiency symptoms are primarily seen in young leaves as copper does not have a good ability to move from old leaves to young leaves. Color changes such as a grayish green color or even whitening and fading are seen. Development weakens. In some cases, larger than normal leaves are formed before tip drying occurs.