Influence of triacontanol and salt stress on the growth and metabolism of spinach

A cost-effective enhancement of leafy vegetable yield and health-promoting quality may be achieved by combining moderate stress conditions with the application of bioactive compounds. The aim of this work is to study how salt stress and triacontanol interact with each other in modulating vegetative growth, photosynthetic light use efficiency, carbon dioxide uptake, and chlorophyll and carotenoid pigment content of spinach plants grown under controlled conditions. Besides stimulating metabolic processes related to growth and photosynthetic production, treatments with 1 μM triacontanol once in three days significantly compensate for the deleterious effects of salt stress induced with 250 mM NaCl.