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Effects of silicon (Si) application on the growth parameters of tomato plants grown under normal and heat stress conditions. a Shoot length, b Shoot dry weight, c stem diameter, d root dry weight, e root length, f effect of Si on the phenotype of tomato plants in the presence or absence of heat stress. Values are presented as the mean ± SE (n = 15). Different letters in one measure indicate a statistically significant difference at P < 0.005
