1.
Plant Physiol
; 43(4): 583-8, 1968 Apr.
Article
in English
| MEDLINE
| ID: mdl-16656810
ABSTRACT
Rubidium-86 was applied to the terminal 5.0 mm region of intact roots for a 6 hour period. The plants were then harvested after 0, 18, 24, 48, 72, or 96 hours additional growth in a rubidium-free continuously renewed nutrient solution. A substantial portion of the rubidium absorbed in a region of the root devoid of functional xylem tissue was ultimately transported to more basipetal regions.