Germination percentage (mean ± SE) of untreated seeds (Control), seeds treated with summer temperature fluctuations during 30 days (Summer 30) or 5 days (Summer 5) and heat-treated seeds (Fire treatments; 80°C, 100°C, 120°C or 150°C during 5 minutes), for each species and population (location of th

Species means consider the variability between populations. For each species and population (Pop.), mean germination values of treatments with the same letter are not significantly different (P>0.05), after controlling for the false discovery rate.