Figure 7.
At Equal Total Fluence, Hourly and Continuous FR Are Equally Effective at Inhibiting Hypocotyl Growth and Promoting Cotyledon Unfolding in the phyA-302 Mutants, whereas Continuous FR Is More Effective Than Pulsed FR in Wild-Type and phyA-205 Seedlings.
The seedlings were grown under continuous FR of 10 μmol·m−2·s−1, hourly FR (3 min/h) of 200 μmol·m−2·s−1, or in darkness. Data are means and se of 12 replicate boxes. WT, wild type.
(A) Hypocotyl length relative to dark controls (symbols as in [B]).
(B) Angle between the cotyledons.
(C) Detail of the cotyledons under hourly pulses of FR.