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  Titanum leaf cuttings!!!!!!!!!!!!!!!!!
From: "brian williams" pugturd50 at hotmail.com> on 2002.06.07 at 07:59:58(8966)
I have a very good a reliable friend in Hawaii who has recently told me he
had been propagating his Amorphophallus Titanum. He said he got about 50
started. This sounded like something to talk about so I called him up to
discuss this. He has been taking cuttings from the leafs manly the mid rim.
Dipping them in hormone and putting them in a mix of peat and 60% perlite.
They were then placed under a misting table were the mist would turn on for
10seconds every 25 minutes.
He said later he got greedy and tried smaller cuttings they did not do as
well as the larger ones. He also said he has tried it with a few other forms
with no luck. Konjac manly.

I would love to give him all the credit on this but. I do think he would get
bombarded with e mails.

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From: "Derek Burch" derek at horticulturist.com> on 2002.06.07 at 13:32:07(8967)
Brian, better keep this quiet. It isn't all that easy to smuggle out the
whole plant, but I can see some botanical gardens waking up to very
ragged-edged amorphophallus leaves if this gets out. (Or is it already out
to the most dangerous group!)
Let me put on record that I don't even know where Fairchild Gardens is, and
if I did I wouldn't know where in the side room of the Rare Plant House
Craig keeps the titanums. Come to think of it I don't even know what a
titanum is. Derek

From: StroWi at t-online.de (StroWi) on 2002.06.07 at 20:35:46(8968)
Brian,

this sounds very exiting.

When your friend says he got the cuttings started, it will be of course important to see, if he gets just rooted leaf pieces. This is known from other plants as well and the rooted leafs can survive quite a while. For such a cutting it will be important that it is able to differentiate a new shoot meristem and for tuberous plants at least this must lead to a tuber formation as well.

The propagation with small leaf pieces works very well with Rex-Begonias.

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From: StroWi at t-online.de (StroWi) on 2002.06.07 at 20:37:28(8969)
Derek,

well said!

"Derek Burch" schrieb:

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From: "brian williams" pugturd50 at hotmail.com> on 2002.06.07 at 20:38:59(8970)
My questions (if you know the answers... )

What do you mean by "the mid rim"?
I believe he said each piece had about 3 leaf divisions or what look like
three leafs. The mid rim would be more of the center of the leaf that is
more stem looking rather than leaf.

Do you know what sorts of hormones?
He said any root forming hormones would most likely work. If it is a powder
remember to use your finger to make a whole rather than pushing the cut
piece in. You can scrape a lot of the hormone off this way.

What temperature was this done at?
Well, he does live in Hawaii. I am saying that is was probably hot and humid
like most cuttings would like it. Probably in the 75F to 85F range.

How long did the rooting process take/did the leaves rot/die back during
this?
I will have to ask him on this question.

How big were the cuttings that worked (overall size, petiole diameter?)
(petiole is a word I just learned today--the leaflet's equivalent of a
petiole)

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From: "brian williams" pugturd50 at hotmail.com> on 2002.06.08 at 11:42:00(8971)
OK well I am sorry for anyone who wakes up to a mutilated Titanum. I did not
have that in mind. I am sure Craig Allen will have to be even more on a look
out now LOL.
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