. The chemistry and mode of action of plant growth substances; proceedings of a symposium held at Wye College, University of London, July 1955. Plant regulators; Auxin; Growth (Plants). Geotropic responses in roots velocity of geotropic curvature at the end of the horizontal exposure. This is the reason for assuming an accelerated course of the lower portion of the curve for continuous exposure. It is not certain, however, whether the course of the curves in Figure 7 reflects the velocity of the actual curvature or the velocity of some limiting process controlling the rate of geotropic bending
. The chemistry and mode of action of plant growth substances; proceedings of a symposium held at Wye College, University of London, July 1955. Plant regulators; Auxin; Growth (Plants). Geotropic responses in roots velocity of geotropic curvature at the end of the horizontal exposure. This is the reason for assuming an accelerated course of the lower portion of the curve for continuous exposure. It is not certain, however, whether the course of the curves in Figure 7 reflects the velocity of the actual curvature or the velocity of some limiting process controlling the rate of geotropic bending, a process which is accelerated from almost the beginning of exposure, but which reaches a constant rate after 16 minutes, or perhaps sooner. It may now be possible to estimate the length of the presentation time by plotting the angles of (C^_^yâCj,.) {Figure 7) after various times of rotation and extrapolating the resulting curves. In an attempt to do this, the angles at T = 32, 64, and 96 minutes were plotted against the logarithm of E (see Figure 8). Extrapolation yields a presentation time of 0-3 â i E-32m\n + £ =16 min ° E-V- min o E =0 min V \ / \ /\V/ \/ w \ / \ A. 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 Wye College; Wain, R. L; Wightman, F. (Frank). London, Butterworths Scientific Publications
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Keywords: ., bookcentury1900, bookcollectionbiodiver, booksubjectgrowthplants
