Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Constricted growth of grass roots through rigid pores

D. SCHOLEFIELD and D. M. HALL
Plant and Soil
Vol. 85, No. 2 (1985), pp. 153-162
Published by: Springer
Stable URL: http://www.jstor.org/stable/42934809
Page Count: 10
  • More info
  • Cite this Item
Constricted growth of grass roots through rigid pores
Preview not available

Abstract

An examination of the mechanical interaction between elongating roots and rigid pores of precisely known size is reported. Sheets of steel mesh and glass capillaries were used as systems of rigid pores. The roots of grasses were found to be capable of penetrating pores much smaller than their nominal thickness, this capability being limited by the size of the root cap and the stele. Constricted root tips elongated at a slower rate but could grow down long capillaries if adequately aerated. The size of rigid pore critical to the growth of perennial ryegrass was 315 µm.

Page Thumbnails

  • Thumbnail: Page 
153
    153
  • Thumbnail: Page 
154
    154
  • Thumbnail: Page 
155
    155
  • Thumbnail: Page 
156
    156
  • Thumbnail: Page 
157
    157
  • Thumbnail: Page 
158
    158
  • Thumbnail: Page 
159
    159
  • Thumbnail: Page 
160
    160
  • Thumbnail: Page 
161
    161
  • Thumbnail: Page 
162
    162