Days

Control

Clinostat

Control

Clinostat k*m«i

HXtt

- Miliary tools-

- Miliary tools-

Figure 6-18. Architecture of the root system of Brassica napus after 5, 15, and 25 days of culture on a clinostat rotating at 1 rpm, or in the vertical position (Control). These models present the length of the primary root and the length and position of the secondary (lateral) roots, as well as those of the tertiary roots (only after 25 days). The primary root grows faster on the clinostat for about 15 days and stops elongating after so that root length is greater for the vertical control after 25 days. The secondary roots are more numerous and are formed closer to the primary root tip on the clinostat after 15 and 25 days.

0 0

Post a comment