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  Re: Am.dormancy
From: Michael Marcotrigiano <marcotrigiano at pssci.umass.edu> on 1998.10.05 at 15:57:14(2655)
In my experience Amorphophallus konjac behave like a corm, rather than the
tuber everyone else says it is. The corm gets smaller as the leaf emerges
and at some point it is near gone, to be replaced by a corm above it that
will be bigger each year under good culture. If your plants are just
getting going I don't know if you are risking the corm letting them dry.
You might want to dig one up and see if it has shruken down much. You may
be going back in size by letting it go dormant now. Your alternatives are
not great since 25F may be lethal and if not, is not going to support any
growth at all. Too bad you don't have indoor space or a greenhouse. Next
time you get corms try start them early (indoors?) and get the longest
seasono of growth out of them. I have a 10yr old konjac that peaked this
year with a leaf 41/2 feet tall, 5 feet wide, and a base petiole diameter of
4 1/2 inches. It came from a one inch corm and has increased in size each
year, flowering the past 4 years.

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