Why does the column of water not break?
Because it's a column of ice? Is this a riddle? Or more of a physics question? A stream of water is held together by surface tension and electrostatic forces.
Formerly Peter S
The column of water in the xylem of the stem is held together by hydrogen bonding between water molecules. This can support a column in the stem of over a 100 metres.
It does break. The height at which it breaks defines the height that a plant can grow to. Some grasses only mange a few inches, Some trees manage over 100 feet
What would a "broken" column of water even look like?
what column of water? water cannot break, it is a liquid. It flows.