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hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
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From: pbruggeman at TISCALI.NL
Subject: Betr: Re: ? ? ? Re: have I done something wrong
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Usually when such tubers are placed in a bowl of water the bad parts, whi=ch
were not visible through a visual inspection, show themselves as discolou=red
spots. Once soaked up enough moisture the bad parts feel soft to the touc=h
although the tuber felt firm when dry. Particularly near the base these b=ad
spots are often fatal as they spread into the growth plate just underneat=h
the shoot. This will cause the death of the shoot a few weeks after it ap=peared
above ground.

Also a good sign for something wrong is that the new roottips only show a=nd
start to grow on one side of the shoot. Bad spots lower down the tuber on=ly
show themselves at the end of the season. By then the rot has spread suff=iciently
far into the healthy tissue to cause, what looks like, premature dormancy
often accompanied by a type of yellowing which is unevenly spread on the
plant. If the tuber is not stressed too much it can overcome this type of
rot lower down and recovers and settles down in 1 or 2 seasons.

I always check my new Chen Yi-stuff thoroughly and use the soaking method
prior to planting with all of them. I place them in a bowl of water for a=n
hour, check them for bad spots, take the bad spots away and dip them in f=ungicide.
To be on the safe side I always dip new imports in fungicide anyway no ma=tter
what they look like.

In my case I store new imports in the fridge prior to the planting season
in boxes with Vermiculite. Bad spots that were missed by me become visibl=e
through Vermiculite that tends to stick to these rotting parts.

I am afraid that this type of damage is indeed caused by bad handling or
rough transport and despite suggestions by several people Chen Yi is not
willing to change the way she packs the orders.

If anyone has any experience with desinfection through Chlorox I would be
very interested to hear about it because more and more fungicides are tak=en
of the market for amateurs thanks to strict new laws and Chlorox seems to
be a good alternative.

Pascal


>-- Oorspronkelijk bericht --
>Date:         Thu, 29 May 2003 09:22:21 EDT
>Reply-To:     "Arisaema Enthusiast Group (AEG) Discussion List (and othe=r
>hardy              Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
>From:         "Jim McClements, Dover, DE z6" <JimMcClem at AOL.COM>
>Subject:      Re: ? ? ? Re: have I done s
>              omething wrong
>To:           ARISAEMA-L at NIC.SURFNET.NL
>
>
>
In a message dated 5/29/03 2:05:09 AM, ggusman at ULB.AC.BE writes:


> If these tubers are just imported, it is - unfortunately - not surprisi=ng
> that some of them wither just after poping up. They were shipped too dr=y
and
> do not produce roots
>hat could replace the amount of water required by the
> shoot. Put the tubers "in good health" in pot or in the garden, in very
well
> drained soil. They will take three years to become acclimatized.
>

My experience has been that most tubers that
>behave this way (sprouting and
then falling over prematurely) are found to be soft and rotted at the bas=e
of
the stem. Some may have been excessively dry when shipped, but many are n=ice
and moist and still are lost after the initial growth spurt. I
>ave wondered if
perhaps rough handling, resulting in invisible damage beneath the surface=,
might be part of the problem. Very few of my Chen Yi tubers, in "good hea=lth"
(or
obviously not), have survived in the garden.

Does anyone find that a rins
> with a fungicide or 10% clorox helps?

Jim


Jim McClements
50 S. Prestwick Ct, Dover, Delaware, USA, Zone 7a