Foliar application of ZN: Best way to mitigate drought stress in plants; A review

Abstract

Drought is one of the most important factor limiting agriculture crop production. It negatively affects plant mechanisms such as formation of proteins, nucleic acid, lipids and carbohydrates which reduces the final crop growth and production. There are many ways to mitigate drought under field conditions but the best and the easiest method is foliar application. Zinc is a vital element that plays an important role in many biological processes. Moreover, Zinc application significantly reduced the negative effects of droughts on plants by reducing photo oxidative damages. The present review directly focuses on the role of foliar application of Zn in improving agriculture crop production under drought conditions and indirectly focuses on Zn deficiencies induced in plant due to its absence.