Name at least five different deficiency symptoms in plants. Describe them and correlate them with the concerned mineral deficiency.
Explanation On the limited supply of an essential element, the growth of the plant starts regressing. Below the critical concentration, the element is said to be deficient. On deficiency of essential elements, certain morphological changes in plants are visible and are called deficiency symptoms. Some of the deficiency symptoms are- Chlorosis is the yellowing of leaves due to loss of chlorophyll Necrosis is the death of plant tissue Inhibition of cell division Delayed flowering, premature fall of leaves and buds Stunted plant growth Final Answer Deficiency symptoms in plants are: 1. Chlorosis- yellowing of leaves due to loss of chlorophyll and happens due to the deficiency of N, K, Mg, S, Fe, Mn, Zn, and Mo. 2. Necrosis- patches of dead tissue (mainly on leaves) due to the deficiency of Ca, Mg, Cu, K 3. Inhibition of cell division- caused by lack or low level of N, K, S, Mo 4. Delayed flowering- flowers do not bloom at time due to the lack of N, S, Mo 5. Stunted plant growth- it could be due to the deficiency of Cu and S 6. Mottle- it is surface marked with coloured spots as anthocyanin develops. Due to deficiency of N, Mg, P, S. 7. Deformation- disorganization, decolorization of the meristematic tissue due to the deficiency of boron.
