Fig. 4

Phenotype of vasc1–1 and vasc1–2. a vasc1–1 and vasc1–2 mutants are shorter than WT at 45 Days After Germination (DAG). b Both mutants are severely affected in internode elongation prior flowering (20 DAG). Red arrows show position of visible nodes. c Spikelet development is affected in both vasc1–1 and vasc1–2. d Growth curve (height) of mutants (red line, vasc1–1; blue line, vasc1–2) and WT (black line) from 15 to 39 DAG. Stars show significant differences (one way ANOVA, p < 0.01, n = 10). e Internode size at 20 DAG (n = 10). f Internode size at plant maturity (60 DAG, n = 10). g Number of spikelets per spike at 50 DAG (n = 23 spikes). h Average number of flowers per spikelet at 50 DAG (n = 64). Letters above histograms indicate significant differences (p < 0.05) between genotypes after Tuckey’s pairwise test