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  breaking dormancy in Amorphophallus
From: StroWi at t-online.de (StroWi) on 2001.04.16 at 17:24:15(6186)
Dear Aroiders!

I wonder, if there is anyone who has tried to break dormancy in Amorphophallus
spec.?

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From: "C. R. Waldron" cwaldron at frognet.net> on 2001.04.17 at 08:29:41(6191)
I find that potting them up in Feb.-March-April,
watering, and maintaining soil temperature at
80F (26C) gets them going quite nicely.

Clarence Waldron

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From: Piabinha at aol.com on 2001.04.17 at 20:33:58(6198)
i still have some Am. tubers from last year's distribution by the almighty lord p. that have not broken dormancy.

either that, or they are dead. is it possible they are dormant for so long?

tsuh yang

From: GeoffAroid at aol.com on 2001.04.18 at 07:36:23(6201)
tsuh yang,

I have had mature tubers of Amorphs sit on the bench dormant for 14 months
before deciding they want to wake up, and that despite giving them warmth and
moisture. They obviously have their own internal clock which they follow
regardless of what we would like.

Geoffrey

From: "Wilbert Hetterscheid" hetter at worldonline.nl> on 2001.04.18 at 08:38:14(6205)
You shouldn't sing lullabies in the vicinity of these sensitive
creatures.........

Lord P.

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From: StroWi at t-online.de (StroWi) on 2001.04.18 at 16:09:21(6207)
Wilbert Hetterscheid schrieb:
> You shouldn't sing lullabies in the vicinity of these sensitive
> creatures.........
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From: StroWi at t-online.de (StroWi) on 2001.04.18 at 18:40:21(6209)
Dear Clarence Waldron,
DearMichael Riley,
Dear Tsuh Yang,
Dear All,

Thanks for your replies!

Letting the Amorphs going their (natural) way and giving them favourable
conditions is definitely a good way to get them out of dormancy.

My point was rather the one Tsuh Yang mentioned. What to do with the ones which
should (normally) start to grow but won't.
I remember,too, that Wilbert H. and S. Ittenbach mentionend in their article
on the cultivation of Amorphs that offsets sometimes refuse to start growing for
years and then start (if they don't die, finally).

So the question is more precise, what to do with tubers and esp. offsets that
are due to grow in a normal cycle of dormancy and growing but won't.
I thought that growth regulators (ethelene or maybe cytokinines) might be worth
a trial.

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From: Steve Marak samarak at arachne.uark.edu> on 2001.04.18 at 20:41:05(6210)
I mentioned a few days ago, in discussion on growing Amorphs in pots vs.
in the ground, that one of the reasons I keep all mine except konjac in
pots is dormancy. They seem incredibly stubborn, refusing to break
dormancy until good and ready and then refusing to stay dormant a day
longer no matter what I do.

This has led me to a regimen of benign neglect that generally works well.
To use the recent acquisitions from Wilbert as examples, they arrived
dormant. Within a few days, I potted them all, using my standard potting
mix. They were watered in very lightly - had the mix been damp, I might
not have watered them in at all. They'll all be put on a shaded shelf, in
a position where they won't accidentally get watered when I'm flailing
about with the hose. To lower risk of rot - not that that's been a problem
- I'll water just enough to keep the soil slightly moist.

I check them every few days. When I see one breaking dormancy, that pot is
moved to a moderately high light shelf, and receives more water and
attention in general. When the leaf starts yellowing and showing signs of
impending dormancy again, I reduce water gradually, then move the pot back
to the "inactive" shelf. They are only repotted to remove offsets or when
the tuber outgrows the pot or the soil condition gets that "poor" look.

The advantages for someone like me are that I don't have to worry about
conditions outdoors, or checking bagged up tubers and missing one and
having it exhaust itself (which I've done), and even if I'm away from home
for a week or so and one does break dormancy, no problem - there are
nutrients and a small amount of moisture available. And I'm never
"fighting" the plants, trying to induce dormancy or growth when they
aren't in the mood. Not to mention that it minimizes effort on my part and
makes more efficient use of my limited greenhouse space.

The only real problem so far is that due to Wilbert's generosity over the
last few years, if they were to all break dormancy at once, I wouldn't
know where to put them. But that's a problem I'm happy to have.

Steve

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From: "Wilbert Hetterscheid" hetter at worldonline.nl> on 2001.04.19 at 08:14:04(6213)
How about: "Wake up, little Suzie, wake up!!!!!!!!!" or "frere Jacques!!"

Lord P.

----- Original Message -----

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From: Piabinha at aol.com on 2001.04.19 at 13:15:03(6215)
bernhard,

you could threaten the tubers with sending them back to live with wilbert. that should do the trick... LOL.

<< PLEASE recommend some awakening songs for all the ignorant people like me...... >>

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From: StroWi at t-online.de (StroWi) on 2001.04.20 at 08:19:49(6220)
DEAR LORD P.,

of course I will follow your advice immediately....

Your thankful disciple,
Bernhard.

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From: "Wilbert Hetterscheid" hetter at worldonline.nl> on 2001.04.20 at 10:51:19(6222)
O.k., that's one name less on the distribution list next time..........

W.

----- Original Message -----

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