Amorphophallus-Forum.de

Hallo Amorphophallusfans,

in der aroid-L hat Wilbert Hetterscheid aka Lord P. auf eine Frage zur Lagerung von Amorphophallusknollen die unten zitierte Antwort geeschrieben.

Sie enthält Angaben, mit denen zum Teil die Empfehlungen im Vol. 19 der Zeitschrift Aroideana korregiert werden.

Zur Übersetzung kann der Babelfisch bemüht werden:
http://babelfish.altavista.com/

MfG,
Bernhard.

Zitat:
"Hi John and other peoples,

I cannot confirm your observation. In fact I have noticed quite the
opposite. In my collection, the ones that need continuous soil and/or
watering always have roots spread all over the tuber that usually are
healthy when the leaf has already died down. The ones that need dry
conditions and have lost their leaves, are usually also without roots or
have dead or dying roots.

My experience and that of others written to me, have changed my views on
dormancy issues in Amorphophallus quite dramatically over the years since my
publication with Ittenbach in Vol. 19 of Aroideana.

Generally it seems that species from (West-)Central Africa, West Malaysia,
Borneo, Java, Sumatra, S. & SE China and N. Vietnam need to be kept in soil
all the time. They tend to have rather short dormancies or nearly none at
all. They are from very wet areas (everwet tropical). During growth they can
hardly be "overloaded" with water during watergift. Species for which this
works good are:

angolensis
angulatus
annulifer
bangkokensis
baumannii
beccarii
borneensis
boyceanus
brachyphyllus
bufo
coaetaneus
costatus
croatii
decus-silvae
discophorus
dzuii
eburneus
eichleri
elegans
excentricus (is also quite drought resistant)
galbra
gigas
glossophyllus (also quite drought resistant)
hayi
hetterscheidii
hewittii
hirsutus
hottae
infundibuliformis
interruptus (also quite drought resistant)
julaihii
koratensis (when young)
lambii
manta
myosuroides
ochroleucus
opertus
palawanensis (can also be stored dry)
pendulus
prainii
preussii
rhizomatosus
rugosus
sagittarius
scaber (only when young)
sinuatus
sparsiflorus
spectabilis
staudtii
subpedatus
tinekeae
titanum
tonkinensis
tuberculatus
venustus
verticillatus
zenkeri

Unfortunately, this behaviour makes them the more difficult species to grow
(except the ones from N. Vietnam, S. & SE China and A. hottae). The ones
that have a prolongued dormancy are usually the stronger ones in cultivation
and need less humid conditions.

Then the smallest of species also appreciate not to be bone dry but they
must also be watered carefully and not become too wet. They too tend to have
hardly any appreciable dormancy and flower immediately after leaf shed or
alongside mature leaves:

myosuroides
obscurus
ongsakulii
polyanthus
pusillus
serrulatus

I think Tony Avent and Alan galloway may have plans to pubblish on this. In
case the IAS board decides to reprint vol. 19, I will add a text on this
subject as introduction.

Of course it may be that under local circumstances at individual people's
places, plants may have a deviating behaviour. But this is merely a general
directive.

Cheerio,
Wilbert"
Zitat Ende

Amorphophile,

After I had had no luck when ordering ( A. eburneus by malesiana - too late, unfortunately sold out... ), IronMarco was so kind to make which of his seed in me...

The way you want to lt. Amorphophallus soil/dormancy list / substrate / storage conditions / rest period are only 120 cm and the question arose initially when the size of the seed, whether because everything has its accuracy, as many other types of such a size or larger (E.g. gigas) make rather smaller seeds.
The comparison to titanum-seeds was also amazed me (above titanum below eburneus, 08.12.2014):

index.php? page = attachment & attachmentID = 2641

Peter Boyce, who has collected the seeds themselves, however confirmed that kind makes it extremely large seeds.

Fortunately the seeds germinated quickly (picture of the 30.01.2015)

index.php? page = attachment & attachmentID = 2644

and the growth was impressive (picture of the 23.05.2015).

index.php? page = attachment & attachmentID = 2642 index.php? page = attachment & attachmentID = 2643

I find it interesting the similarity of the shiny sheet which of titanum.

Happy viewing, Bernhard.

Amorphopile,

4 1/2 months after the image in post #54 my eburneus now look like: index.php? page = attachment & attachmentID = 2645 index.php? page = attachment & attachmentID = 2646

The plants grow so far easily and two of the plants to make a new blade again.
You are currently in the winter garden (at night about > 18 C °).

Happy growing, Bernhard.

eburneus-fan,

After the collective we could share our experiences with the art...

I have copied here once what was previously written in the Forum to eburneues (see above posts).

Happy posting, Bernhard.

For the first time a cordial "Grüß Gott" in the round!

So on the last day of the year I thought to myself, I am my A. eburneus in some photos. The seeds have sprouted all (with one exception) and grew well. Here the evidence photos:

At this point again thanks to Bernhard for the procurement of the seeds and the really good organization!

I wish everyone a happy new year in the year 2016!



Best regards from Munich!

Thorsten

Hello together,
Here's a first report to my 4 eburneus:
They have sprouted all well-behaved, Seramis and have. 20 and 30 cm height. Root growth was initially moderate, now gave the roots properly gas. You are at 20-25 ° C and a relative humidity of around 50% (max 69%, min 39%).
A plant now shows a new tip.
Love greetings
Michael

eburneues-fans

After one of my three plants a few a week, I had thought about first all out to pot to separately store the indented.
But that was too tricky, the two that were still in the journal, to bother.

Before a few days then the nice surprise - the rest period is probably over: index.php? page = attachment & attachmentID = 2722 index.php? page = attachment & attachmentID = 2723

The pot was standing in the living room and I have only regular cast and fertilized.
eburneus appears to be similar like titanum - so, if Subtrat and temperature are probably not too difficult, in the culture...

Happy growing, Bernhard.

Hello
also here a short update:
The 10 pots have become too small when all 4 plants now, well I tried to implement each whole root ball in 13 or 15 pots. Root growth is quite good, and as far as I could see the tubers look too healthy. You still happily grow in Seramis.
Greetings
Michael

Hi Michael,.

to me, it looks great after another 6 months - tubers now bulging the pot so I will repot this days still, and separate...

index.php? page = attachment & attachmentID = 2963 index.php? page = attachment & attachmentID = 2964 index.php? page = attachment & attachmentID = 2965

What however does not like the way, vacuum cleaner - see last image, the tattered sheets are left...

Happy growing, Bernhard.

... Yes, vacuum cleaner can be nasty!
Looks very good. I am however come from the outset in separate pots to give everything. Power probably not much difference, because the green stuff here just as closely.
Michael

erbuneus-fans

After the pot got dents in August, I have sporadically now also my eburneus clean up for the winter.
The pictures speak for themselves...

index.php? page = attachment & attachmentID = 3150 index.php? page = attachment & attachmentID = 3151 index.php? page = attachment & attachmentID = 3148 index.php? page = attachment & attachmentID = 3149

So all three live and the way is relatively straightforward with me.
The last picture shows you can see the tuber of the second plant of down and here beautifully that even down on the tuber new roots grow.
I think this is typical of species like titanum, borneensis etc., which come from immerfeuchten areas and also after the pulling of the leaf in the damp substrate through to cultivated.

Who can report something, what happened to the seeds of the collective?

Happy posting, Bernhard.

Hello
My eburneus are all four still in the juice. One is just a new sheet. Am curious, as it now is big, it pushes very slowly forward.
Michael

Hello
all four plants grow still with me. They are not particularly large: height 20, 2 x 25
and 35 cm. A plant has begun a second sheet to push it but
dries now gone, I suppose the short day due. I will continue to grow and maybe only repot in the spring.


Olvi

Thanks for the replies! Press all available thumbs for a successful further culture

Happy growing, Bernhard.

... an image is often more than a thousand words...

Hello everyone

here goes: how's my four eburneus
Two are in Seramis, and two in Sphagnum.
I am actually quite satisfied with them, grow all quite well.
The sheet on the pictures is shot over the summer and has produced huge leaf segments, the tuber had 236 gr.
The other three plants are slightly smaller.

Love greetings
Michael

eburneus-fans

After my eburneus from post #13 a are drawn at some point and is unfortunately one of the three tubers has adopted (ROT), I have the two remaining wintered in the Hall above and slightly damp kept (rather damp substrate).
I was very relieved when a few weeks ago two buds appeared well developed; the leaves are about to unfold...

index.php? page = attachment & attachmentID = 3970 index.php? page = attachment & attachmentID 3971 =

How's your plants?

Happy growing, Bernhard.

Hi Bernard,.

my 4 eburneus stood throughout the winter in the journal, have a distinctive rhythm and 60 - 90 cm tall. I wonder when that move again. I just hope that they still take the summer, that there is still a very nice growth spurt.

The juliae also dazzling, although they develop very differently, is 30cm and 55 cm high. All are available in Sphagnum.


Love greetings
Michael

Hi Michael,.

impressive! Especially the sizes that you call...

You work with additional exposure, gell? Before I scare back yet, da me the heating costs for the winter garden has always been the forehead frown and... Although the is me... certainly more profitable ZUsatzbelichtung

Happy growing, Bernhard.