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Name: Keith C.
Status: other
Age: 30s
Location: N/A
Country: N/A
Date: 6/25/2003
Question:
Why do trees that are girdled and have their shoots and crowns otherwise intact die? Very often angiosperm trees resprout when simply cut off above the root collar. Why does there need to be living shoot meristems to make girdling work? How does the tree 'know' if the shoot has been severed or girdled if the phloem has been interrupted?

Replies:
The following should be helpful:

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Phloem.html

Anthony Brach, Ph.D


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