[APD] Growth patterns

["Douglas Guynn" <d_guynn at sbcglobal.net>]

I seem to find my self a bit confused (again).

I seem to remember learning in high school botany class that plants grow
only from the terminal buds. One way to show this is to fix a marker of some
kind on the trunk of a tree or main stem of another plant, and observe the
marker remains at the same height while the plant gets taller.

Apparently my Egeria Densa grows contrary to this idea. I can plant
trimmings (6 to 9 inches long) that have very nicely thick growth along the
stem. A week or so later, when the trimming has grown to the top and across
the of the tank, the lower part seems to have elongated, and left from 1/2
to 3/4 of an inch between leaf whorls. I realize this is probably an issue
of insufficient light (75 gal. tank with 160 watts T-12 fluorescent).

Is this idea only true of woody plants (dicots?)? Anyone have any
explanation for this?

Douglas Guynn
	432.368.5411
	d.guynn at sbcglobal.net

Not everyone who says to Me, 'Lord, Lord,' will enter the kingdom of heaven;
but he who does the will of My Father who is in heaven. Matt 7:21

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