Growth, Biochemical and Physiological Responses of Water-stressed African Eggplant Seedlings to Exogenous salicylic Acid
Year: 2019
Type: article
Abstract: Background and Objective: Water stress is a constraint to the production of African Eggplant.Growth, biochemical, photosynthetic pigments, anti-oxidative defense system responses of pot-grown eggplant to water stress and pre-stress salicylic acid (SA) treatments were investigated.Materials and Methods: Treatments consisted of pre-stress foliar application of 0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 mM of SA on plants exposed to 10 or 20 days of water-deficit stress and water sufficient control.Randomized complete design with three replicates was used.Results: Underwater stress, growth was reduced but anti-oxidant defensive systems enhanced.However, pre-stress foliar application of SA increased growth and further enhanced proline, phenolics, endogenous SA, leakage of electrolytes and activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) and ascorbate peroxidase (APX) to the same level as water sufficient control plants.Conclusion: The study concluded that pre-stress foliar application of SA protects water-stressed S. macrocarpon against oxidative damage at 2.0 mM concentration.
Institution: Obafemi Awolowo University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2968802529