Symptoms
                                Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
                            
                                Reasons
                                Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold. 
                            
                                Symptoms
                                Older leaves show tip chloroses and necrosis, proceeding towards the leaf base.
                            
                                Reasons
                                Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold. 
                            
                                Symptoms
                                Reduced growth in length.
                            
                                Reasons
                                Potassium deficiency (right)
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold. 
                            
                                Symptoms
                                Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
                            
                                Reasons
                                Potassium deficiency (right)
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold. 
                            
                                Symptoms
                                Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
                            
                                Reasons
                                Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold. 
                            
                                Symptoms
                                Older leaves show tip chloroses and dieback. Diffuse brown blotches disperse on the leaf blade and coalesce to further necrosis.
                            
                                Reasons
                                Potassium deficiency
Though direct impact of potassium deficiency is only rarely observed, K appears to play an important role in tolerance of heat, drought and cold. 
                            
Asia and Oceania