 We believe that there is no stru.-ture in plants more wonderful, as far as its functions are concerned, than the tip of the radicle. If the tip be lightly pressed or burnt or cut, it transmits an influence to the upper adjoining part, causing it to...  The Power of Movement in Plants - Page 574by Charles Darwin - 1900 - 592 pagesFull view - About this book
 | Mary Mapes Dodge - Children's literature - 1880 - 530 pages
...life which is forever moving, feeling, growing in the ground. " If ihc tip of a seedling's rx>ut IK lightly pressed or burnt or cut. it transmits an influence to the part next above, cruising it to bend away from the affected side ; and, what is still more surprising,... | |
 | Science - 1881 - 1100 pages
...source of moisture." It is the tip only which is sensitive to gravitation. Well may Mr. Darwin affirm that there is no structure in plants more wonderful,...functions are concerned, than the tip of the radicle. Also, that, " it is impossible not to be struck with the resemblance between the foregoing movements... | |
 | James Samuelson, Sir William Crookes - Science - 1881 - 782 pages
...attention to the wonderful character of the tip of the radicle, which is remarkably sensitive : — " If the tip be lightly pressed, or burnt, or cut, it...transmits an influence to the upper adjoining part of the root, causing it to bend away from the affected side ; and, what is yet more surprising, the... | |
 | Science - 1881 - 836 pages
...attention to the wonderful character of the tip of the radicle, which is remarkably sensitive : — " If the tip be lightly pressed, or burnt, or cut, it...transmits an influence to the upper adjoining part of the root, causing it to bend away from the affected side ; and, what is yet more surprising, the... | |
 | Michigan State Horticultural Society - Fruit-culture - 1883 - 486 pages
...sensitive to geotropism, and that when thus excited it causes the adjoining parts to bend." •• There is no structure in plants more wonderful, as...functions are concerned, than the tip of the radicle. The course pursued by the radicle in penetrating the ground must be determined by the tip, hence it... | |
 | George Lincoln Goodale - Botany - 1885 - 644 pages
...downward course and to burrow to a greater depth " (p. 199). "We believe that there is no stru.-ture in plants more wonderful, as far as its functions...influence to the upper adjoining part, causing it to hend away from the affected side ; and, what is more surprising, the tip can distinguish between a... | |
 | George Lincoln Goodale - Botany - 1885 - 572 pages
...to a greater depth " (p. 199). "We believe that there is no structure in plants more wonderful, us far as its functions are concerned, than the tip of...transmits an influence to the upper adjoining part, cansing it to bend away from the affected side ; and, what is more surprising, the tip can distinguish... | |
 | Asa Gray - Botany - 1885 - 756 pages
...gravity, he will be able to recover his downward course and to burrow to a greater depth " (p. 199). " We believe that there is no structure in plants more...concerned, than the tip of the radicle. If the tip In- lightly pressed or burnt or cut, it transmits an influence to the upper adjoining l«rt, causing... | |
 | George Lincoln Goodale - Botany - 1885 - 572 pages
...gravity, he will be able to recover his downward course and to burrow to a greater depth " (p. 199). " We believe that there is no structure in plants more wonderful, as far as its functions are concerued, than the tip of the radicle. If the tip be lightly pressed or burut or cut, it transmits... | |
 | George Lincoln Goodale - Botany - 1885 - 594 pages
...gravity, he will be able to recover his downward course and to burrow to a greater depth " (p. 199). " We believe that there is no structure in plants more wonderful, as far as its functions nre concerned, than the tip of the radicle. If the tip lie lightly pressed or burnt or cut, it transmits... | |
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