Figure 8.

The effect of volume on stomatal aperture in detached epidermal strips from C. communis at two different temperatures. Equal-sized strips (1.0 cm², approximately 35–40) were pre-incubated on 25cm³ 60 mm KCl for 3 h, then transferred to solutions, prechilled where necessary, of 60 mm KCl of different volumes for a further hour (all under a PPFD of 350 μmol m⁻² s⁻¹). Apertures of 25 stomata in each of three strips were measured per treatment.