. Carnegie Institution of Washington publication. TRANSPIRATION BEHAVIOR OF RAIN-FOREST PLANTS. 63 single pronounced maximum, while the recurrence of sunshine is frequently responsible for a second rise and sub-maximum (Experi- ments 2 and 3). The occurrence of a sub-maximum before the actual maximum of the day is rare. A slight increase of the evaporation rate in the early afternoon may be accompanied by a relatively pronounced increase of the transpiration, as occurred at 1 p. m. and 3 p. m. in Exper- iment 3. The later in the afternoon such secondary maxima of evap- oration occur, the less
. Carnegie Institution of Washington publication. TRANSPIRATION BEHAVIOR OF RAIN-FOREST PLANTS. 63 single pronounced maximum, while the recurrence of sunshine is frequently responsible for a second rise and sub-maximum (Experi- ments 2 and 3). The occurrence of a sub-maximum before the actual maximum of the day is rare. A slight increase of the evaporation rate in the early afternoon may be accompanied by a relatively pronounced increase of the transpiration, as occurred at 1 p. m. and 3 p. m. in Exper- iment 3. The later in the afternoon such secondary maxima of evap- oration occur, the less is the response of the transpiration rate: such a CLEAR HI] CLOUDY FOG RAIN E21 NIGHT. FIG. 2.—Daily march of transpiration in Clethra (TC) and Alchornea (TA), together with concurrent rate of evaporation (—) , rates of relative transpiration for the TC TA two plants, —r and -=- respectively, and schematic depiction of weather conditions. E L/ maximum in Experiment 3 at 6 p. m. affecting neither Pilea nor Peperomia (table 18, fig. 4); slight secondary maxima in Experiment 2 affecting Dodoncea slightly on the first day of the experiment and not at all on the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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