In message , Martin Brown
writes
In message , Douglas
writes

Will someone with the knowledge please discuss the situation where one sets
the cutting aside for a while to allow the cut-wound at the bottom of the
cutting (just under the node) to form a dry callus.
I have the feeling that a "woody type!" cutting would be appropriate but a
soft pappy cutting would be a non-starter, - not able to form a callus..

It is more to do with the tendency of the target to rot if its newly
damaged cells are placed in contact with soil or water. A lot of the
plants from more arid areas will stand a much higher chance of rooting
rather than rotting if you allow them to form a callous before putting
them in soil. Geraniums and pelargoniums for instance benefit
enormously from this.


Approx how long is "a while" in such cases?

--
Andrew Wilkes
IT Analyst, BCS
tel: 01793 417471; fax: 0870 1640623
http://www.bcs.org.uk