The Power of Movement in Plants eBook

Francis Darwin
This eBook from the Gutenberg Project consists of approximately 654 pages of information about The Power of Movement in Plants.

The Power of Movement in Plants eBook

Francis Darwin
This eBook from the Gutenberg Project consists of approximately 654 pages of information about The Power of Movement in Plants.

(3.) After one day slight deflection, but the cauterised mark was so faint that the same side was again touched with caustic.  In four days from the first touch deflection amounted to 78o, which in an additional day increased to 90o.

(4.) After two days slight deflection, which during the next three days certainly increased but never became great; the radicle did not grow well and died on the eighth day.

(5.) After two days very slight deflection; but this on the fourth day amounted to 56o from the perpendicular and from the cauterised side.

(6.) After three days doubtfully, but after four days certainly deflected from the cauterised side.  On the fifth day deflection amounted to 45o from the perpendicular, and this on the seventh day increased to about 90o.

(7.) After two days slightly deflected; on the third day the deflection amounted to 25o from the perpendicular, and this did not afterwards increase.

(8.) After one day deflection distinct; on the third day it amounted to 44o, and on the fourth day to 72o from the perpendicular and the cauterised side.

(9.) After two days deflection slight, yet distinct; on the third day the tip was again touched on the same side with caustic and thus killed.

(10.) After one day slight deflection, which after six days increased to 50o from the perpendicular and the cauterised side.

(11.) After one day decided deflection, which after six days increased to 62o from the perpendicular and from the cauterised side.

(12.) After one day slight deflection, which on the second day amounted to 35o, on the fourth day to 50o, and the sixth day to 63o from the perpendicular and the cauterised side.

(13.) Whole tip blackened, but more on one side than the other; on the fourth day slightly, and on the sixth day greatly deflected from the more blackened side; the deflection on the ninth day amounted to 90o from the perpendicular.

(14.) Whole tip blackened in the same manner as in the last case:  on the second day decided deflection from the more blackened side, which increased on the seventh day to nearly 90o; on the following day the radicle appeared unhealthy.

(15.) Here we had the anomalous case of a radicle bending [page 174] slightly towards the cauterised side on the first day, and continuing to do so for the next three days, when the deflection amounted to about 90o from the perpendicular.  The cause appeared to lie in the tendril-like sensitiveness of the upper part of the radicle, against which the point of a large triangular flap of the seed-coats pressed with considerable force; and this irritation apparently conquered that from the cauterised apex.]

Copyrights
Project Gutenberg
The Power of Movement in Plants from Project Gutenberg. Public domain.