Improving Performance of Salt-Grown Crops by Exogenous Application of Plant Growth Regulators

Soil salinity is one of the major abiotic stresses restricting plant growth and development. Application regulators (PGRs) a possible practical means for minimizing salinity-induced yield losses, can be used in addition to or as an alternative crop breeding enhancing tolerance. The PGRs auxin, cytokinin, nitric oxide, brassinosteroid, gibberellin, salicylic acid, abscisic jasmonate, ethylene have been advocated use improve performance under saline conditions. This review summarizes current knowledge effectiveness various ameliorating detrimental effects on development, elucidates physiological genetic mechanisms underlying this process by linking with their downstream targets signal transduction pathways. It shown that, while each these possesses ability alter ionic redox homeostasis, complexity interactions between involvement numerous signaling pathways makes it difficult establish unequivocal causal link effectors mediating plants’ adaptation salinity. beneficial are also strongly dependent genotype, timing application, concentration used. action spectrum levels. Taken together, results rather narrow “window” which PGR observed, hence limiting application (especially field conditions). concluded light above complexity, context cost–benefit analysis, tolerance remains more reliable avenue impact yield. Further progress requires studies cell-based interaction membrane transporters ion homeostasis.