Phenotypic analysis of cp3 mutant compared with weak bri1 allele, bri1-301. A. 3-week-old soil grown plants of cp3 and bri1-301 were shown with corresponding wild type plants, Landsberg (Ler) and Columbia (Col), respectively. B. Phenotype of cp3 and Ler grown for 5 weeks. C. Quantitative determination of growth in cp3 and Ler. Leaf length (LL), leaf width (LW), and petiole length (PL) of the 5-week-old plants were measured Silique length (S), peduncle length (P), and height of individual plants (H) were measured from the 7-week old plants (n = 60, except height (n = 25). Growth is represented as a relative value compared to that of Ler. Experiments were repeated twice. Error bars denote standard errors.