Tipburn

Tipburn is necrosis at the leaf apex of young developing leaves and the major cause is often considered to be Ca2 + deficiency. However, tipburn is caused not only by Ca2 + deficiency in the plant, but also the interaction of various factors. The inhibition of Ca2 + absorption is affected by pH, root temperature, and water stress. Ca2 + is transferred from root to shoot by the transpiration stream, so an environment in which transpiration is suppressed prevents this transfer. Moreover, there is competition for Ca2 + distribution among different tissues of the plants. Thus, in order to prevent tipburn, it is important to understand the various factors that cause it.