Fig. 1

(a–f) Boxplots for germination traits in 198 barley genotypes under control and drought stress conditions (PEG 20%). (a) Germination percentage after 2 days; (b) Germination percentage after 4 days; (c) Germination percentage after 6 days; (d) Germination percentage after 8 days; (e) Germination percentage after 10 days; (f) Germination speed. Significance level: *p < 0.05; **p < 0.01, ***p < 0.001; ****p < 0.0001.