Botanical Gazette, Volumen40John Merle Coulter, M. S. Coulter, Charles Reid Barnes, Joseph Charles Arthur University of Chicago Press, 1905 Publishes research in all areas of the plant sciences. |
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Página 19
... sides not touching the plates hairs appeared nearly to the tip in air , and in the upper portions in water , as they do under ordinary conditions . Thus the contact on two sides of the root has no apparent effect on the hair production ...
... sides not touching the plates hairs appeared nearly to the tip in air , and in the upper portions in water , as they do under ordinary conditions . Thus the contact on two sides of the root has no apparent effect on the hair production ...
Página 22
... side of the vessel , becoming kinked and hairy . On May 9 it was drawn away from the glass , and on the next day showed a smooth space . On May 12 the root again reached the glass , and on May 15 showed hairs . The jar was darkened and ...
... side of the vessel , becoming kinked and hairy . On May 9 it was drawn away from the glass , and on the next day showed a smooth space . On May 12 the root again reached the glass , and on May 15 showed hairs . The jar was darkened and ...
Página 23
... side . It became kinky and hairs continued to be formed for five days . FIG . 11. - Diagram of apparatus to stop the growth of a root by a glass rod . The fact that kinking takes place in free water shows that some other factor or ...
... side . It became kinky and hairs continued to be formed for five days . FIG . 11. - Diagram of apparatus to stop the growth of a root by a glass rod . The fact that kinking takes place in free water shows that some other factor or ...
Página 38
... side of a corn root growing along the surface of water abundant hairs were developed , while the under side remained smooth . The difference in length between the epidermal cells and those of the cortex on the haired side was 20μ , and ...
... side of a corn root growing along the surface of water abundant hairs were developed , while the under side remained smooth . The difference in length between the epidermal cells and those of the cortex on the haired side was 20μ , and ...
Página 39
... corn . On the concave side of curved roots of corn the epidermal cells are shorter than the inner ones and at times show more hairs ( fig . 8 ) . Here the retarding action of the inner 1905 ] 39 SNOW - DEVELOPMENT OF ROOT HAIRS.
... corn . On the concave side of curved roots of corn the epidermal cells are shorter than the inner ones and at times show more hairs ( fig . 8 ) . Here the retarding action of the inner 1905 ] 39 SNOW - DEVELOPMENT OF ROOT HAIRS.
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