Biochar a promising amendment to mitigate the drought stress in plants: review and future prospective
2023
Wang LIHONG | Guan JIANING | Wei JIAN | Athar MAHMOOD | Adnan RASHEED | Muhammad U. HASSAN | Jameel M. AL-KHAYRI | Mohammed I. ALDAEJ | Muhammad N. SATTAR | Adel Abdel-Sabour REZK | Mustafa I. ALMAGHASLA | Wael F. SHEHATA
Drought stress (DS) is one of the most destructive abiotic stresses that negatively affects plant growth, and yield. The intensity of DS is continuously increasing due rapid of water sources, less rainfall, and an increase in global warming. The world’s population is increasing at an alarming rate which needs a substantial increase in crop production to meet global food needs. Therefore, in this context, we must have to increase crop production in the scenarios of rapid climate change and increasing intensity of abiotic stresses. Globally, different measures are used to mitigate the adverse impacts of DS, recently biochar (BC) has emerged as an excellent soil amendment to mitigate the toxic effects of DS and improve crop production. The application maintains membrane integrity, plant water relations, nutrient homeostasis, photosynthetic performance, hormonal balance and osmolytes accumulation, and gene expression thereby improving plant performance under DS. Moreover, BC application under DS also improves soil organic matter, water holding capacity, soil structure stability, and activity of beneficial microbes which can improve the plant performance under DS. In the present review different mechanisms through which BC mitigates the adverse impacts of DS on plants are discussed. This review provides new suggestions on the role of BC in mitigating the adverse impacts of DS.
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