Fig. 3From: Silicon-induced thermotolerance in Solanum lycopersicum L. via activation of antioxidant system, heat shock proteins, and endogenous phytohormonesEffects of Si application on stress-related parameters. a Malondialdehyde (MDA) content and (b) In situ O2−, c Peroxidase (POD), d Polyphenol oxidase (PPO), e ascorbate peroxidase (APX) and (f) catalase (CAT). Each data point presents the mean of three replicates. Means denoted by different letters are significantly different (P < 0.05)Back to article page