Root length of transgenic plants under different light qualities.
Five-day-old seedlings of Col-0, phyB, AtPHYB Col-0, AtPHYB phyB, GmPHYB1 Col-0 and GmPHYB1 phyB grown under DD, FR (23.5 µmol m−2 s−1), RL (1.3 µmol m−2 s−1), BL (3.1 µmol m−2 s−1) or WL (80.8 µmol m−2 s−1) condition. Asterisks indicated a 0.01 significant difference from its transgenic background (t-test). Error bars denote the standard deviation. n = 15.