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  Re: [Aroid-l] gGbberellic acid and inflorescence-Marek
From: "E.Vincent Morano" <ironious2 at yahoo.com> on 2009.08.05 at 07:13:55
You are most probably correct about those plants being treated with ga3. As I was mention ing to another group member the plant may look nice and have flowers which is good for sales but at the end of the season, you will be left with a tiny tuber or no tuber at all. Which is also good for sales because your plant dies then you go buy another. Some information I was reading said that Zantedeschia bloom well with GA3. But I would think they would die at the end of the season or very soo as has been your experience :-)

Thanks for telling me that a tuber is a form of a stem. I did not know that. And that may be part of the reason why ga3 can damage them. GA3 will cause main stems in plants to grow very tall. Obviously a tuber trying to grow tall will not work. Ive got no proof of this but the reasoning sounds sound to me.




I refuse to
participate in the in the recession.

--- On Sun, 8/2/09, Marek Argent <abri1973@wp.pl> wrote:

From: Marek Argent <abri1973@wp.pl>
Subject: Re: [Aroid-l] gGbberellic acid and inflorescence production
To: "Discussion of aroids" <aroid-l@gizmoworks.com>
Date: Sunday, August 2, 2009, 11:32 AM

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Hello,
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Now I think I know why all Zantedeschia plants =0Abought in pots in florist shops with many inflorescences died shortly after =0Ablooming.
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These pot plants must have been treated with GA3, =0Athey had more inflorescences than leaves, just to be a decoration for a few =0Aweeks.
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They had a lot of flowers, but no tubers, when =0Athe overground parts withered there was nothing in the pots =0Aexcept the peat.
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Zantedeschias I buy as garden plants with huge =0Atubers behave differently.
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They produce one or a few inflorescences =0Aduring summer and their tubers grow and divide.
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Thanks for this info, I haven't known =0Athis
=0A
Marek
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=0A
P.S. A tuber is not a form of a root, but a form of =0Astem (corm).
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=0A
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----- Original Messag
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Sent: Saturday, August 01, 2009 12:34 =0A AM
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Subject: Re: [Aroid-l] gGbberellic acid =0A and inflorescence production
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Use caution with this if you care to experiment. GA3 =0A retards root growth and will kill your tubers/rhizomes if it comes in =0A contact with them. Do not use on amorphophallus unless its a variety =0A that can grow a leaf and an inflorescence at the same time but dot =0A expect much tuber growth as GA3 retards that also because is a form of a =0A root.

I've been using plant growth hormones for years. If you =0A want to noticeably increase tuber growth then wait until the tuber has =0A formed a leaf and the leaf is fully open and established. Then pour a =0A 100-150ppm solution at the base of the plant avoiding the leaf,a higher =0A ppm is not better, it will cause the plant to do different things. Just =0A do this one time during the season and apply high phosphate or bone meal =0A fertilizer.  Keep in a hot and humid shaded greenhouse for optimal =0A results. Using this method, I made a 2lb konjac grow into a 7lb monster =0A in one season. The next year it gave me a perfect flower of specimen =0A quality.  Which Ive posted pictures of here in the past.
This =0A year Im doing this too all my tubers


--- =0A On Fri, 7/31/09, ExoticRainforest =0A <Steve@ExoticRainforest.com> wrote:
=0A

From: =0A ExoticRainforest <Steve@ExoticRainforest.com>
Subject: Re: =0A [Aroid-l] gGbberellic acid and inflorescence production
To: =0A "Discussion of aroids" <aroid-l@gizmoworks.com>
Date: Friday, =0A July 31, 2009, 9:34 AM

=0A
Thanks =0A Marc!  I'm always glad to see your posts on Aroid =0A l.

Steve


Marc Gibernau wrote: =0A
Dear Steve,

Yes gibberellic acid has been "intensively" used to induce the =0A production of an inflorescence with aroid. See all the work of henny =0A and collaborators.
I wanted to try but never have time, so please =0A keep me informed.
Here is the list of some papers by =0A Henny:

Henny, R. =0A J. 1980. Gibberellic acid (GA3) induces flowering in =0A Dieffenbachia maculata 'Perfection'. HortScience 15(5): 613. =0A species. 
Henny, R. J. 1981. Promotion of =0A flowering in Spathiphyllum 'Mauna Loa' with Gibberellic  =0A Acid. HortScience 16(4): 554-555.
Henny, R. J. 1983. Stimulation =0A of flowering in Aglaonema with gibberellic acid (GA3). =0A Aroideana 6(3): 71-72.
Henny, R. J. 1983. Flowering of =0A Aglaonema commutatum 'Treubii' following treatment with =0A gibberellic acid. HortScience 18(3): 374.
Henny, R. J. and W. C. =0A Fooshee. 1983. Flowering of Aglaonema with gibberellic acid =0A (GA3). A follow-up report. Aroideana 6: 135-136.
Henny, R. J. and =0A R. L. Hamilton. 1992. Flowering of Anthurium following =0A treatment with gibberellic acid. HortScience 27(12): 1328.
Henny, =0A R. J. 1999. Gibberellic acid-induced flowering of Syngonium =0A podophyllum Schott 'White Butterfly'. HortScience 34(4): =0A 676-677.


Best =0A regards,

Marc


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