0 the part of a plant that carries water from the roots to the leaves and gives support to the stem or trunk -- drewno, ksylem
This may open the way to finding relatively distinct growth rings in the xylem of some evergreen species in these forests.
The influence of these nematodes on cytokinins in the host's xylem exudate was not nearly so pronounced.
In tangential section, preserved rays in the secondary xylem are relatively low (mean height: 86.9 m) compared to those of other specimens.
But the same increase would double the food supply for a xylem-feeding insect.
Most bark was eaten down to the xylem and the volume eaten was estimated from the mean bark thickness.
The entire feeding areas were outlined, irrespective of depth, but feeding marks generally extended down to the xylem on the feeding substrate used.
Secondary xylem ranges from 1.2 to 2 mm in thickness and is relatively evenly distributed around the primary strands.
Features of the secondary xylem in radial section are not easily observed due to mineralization of the cell walls.
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