
TY  - JOUR
A1  - Legge, NJ 
T1  - Anatomical Aspects of Water Movement Through Stems of Mountain Ash (<I>Eucalyptus regnans</I> F. Muell.)
JF  - Australian Journal of Botany
JO  - Aust. J. Bot.
Y1  - 1985
VL  - 33
IS  - 3
SP  - 287
EP  - 298
KW  - 
UR  - https://doi.org/10.1071/BT9850287 
N2  - Introduction of a stain through the severed roots of Eucalyptus regnans of two age classes showed that a spiral interlocked sap ascent pattern in young trees tended towards a vertical sectorial pattern by age 40 years. Microscopic examination of the stained wood suggests that intercellular water movement occurs principally via the pits. Serial transverse sections of wood from a young tree showed a limited degree of intervessel contact, with a network coefficient of 13.7 contacts m-1 and approx. 0.9% of vessel surface area in contact with other vessels. Analysis of the frequency of vessel endings indicates an average vessel length of approx. 1.8 m. Trunk segments of 40-year-old trees had relative conductivities of approx. 3.3 x 10-11 m2, while small lateral roots had values up to 10 times greater. 
ER  -

