Amorphophallus tuber growth without leaf?

From: "StroWi at t-online.de" StroWi at t-online.de> on 2006.08.08 at 08:13:14(14479) Aroiders, in an austrian forum there was the observation reported that an Amorphophallus tuber grows before it sends up a leave. Has anyone made a similar observation and has an explanation for this? The only points I can imagine is an increase of weight and volume by water uptake before the leaf grows or a conversion of starch into sugar, although I doubt that the latter increases weight and volume of an tuber. +More Looking forward to further comments.... Good growing, Bernhard. Dollbergen, Germany approx. Zone 6b _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

From: Baumfarn Webmaster webmaster at baumfarn.at> on 2006.08.08 at 13:24:26(14480) I see you got curious. I give some more details. 1st case) A. kiusianus - plant not even developed the leaf correctly, never unfolded completely and died fast away. The tuber tripples it's size. 2nd case) Helicodiceros muscivorus - i planted several tubers (some very tiny) in a pot, just one realy thrived. Meanwhile the leaf begin to die back and I digged down to see what the tuber do. And found beneath the biggest tuber (the one with leaf) another tuber even bigger than the other ever was. +More greetings Peter --------------------------------------------------------------------------- treeferns & aroids: http://www.baumfarn.at/treefern (http://www.baumfarn.at) --------------------------------------------------- Amorphophallus network: http://www.amorphophallus.baumfarn.at/ _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

From: "StroWi at t-online.de" StroWi at t-online.de> on 2006.08.08 at 14:11:52(14481) > 2nd case) Helicodiceros muscivorus - i planted several tubers (some > very tiny) in a pot, just one realy thrived. Meanwhile the leaf begin > to die back ?and I digged down to see what the tuber do. And found > beneath the biggest tuber (the one with leaf) another tuber even > bigger than the other ever was. > > greetings +More > Peter Peter, could that not be just an offset of the tuber with the leaf??? Good growing, Bernhard. _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

From: Douglas Bertelsen douglas.bertelsen at gmail.com> on 2006.08.08 at 14:41:10(14482) Peter, Soluble sugars would have a higher affinity for water as well as increase the overall molality of the cell sap. I would follow that a dehydrated plant (one sitting dry on a shelf) would rapidly take up water both because of the dehydration and the starch breakdown. Example: most seeds store energy as starches, but during imbibition they swell several times their original size. Doug +More I give some more details. 1st case) A. kiusianus - plant not even developed the leaf correctly, never unfolded completely and died fast away. The tuber tripples it's size. 2nd case) Helicodiceros muscivorus - i planted several tubers (some very tiny) in a pot, just one realy thrived. Meanwhile the leaf begin to die back and I digged down to see what the tuber do. And found beneath the biggest tuber (the one with leaf) another tuber even bigger than the other ever was. greetings Peter --------------------------------------------------------------------------- treeferns & aroids: http://www.baumfarn.at/treefern (http://www.baumfarn.at) --------------------------------------------------- Amorphophallus network: http://www.amorphophallus.baumfarn.at/ _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

From: Baumfarn Webmaster webmaster at baumfarn.at> on 2006.08.08 at 16:53:42(14483) No, I don't believe it. The offset would be greater than the original tuber? The tuber was not 'connected' to anything. greetings +More Peter StroWi@t-online.de wrote: could that not be just an offset of the tuber with the leaf??? --------------------------------------------------------------------------- treeferns & aroids: http://www.baumfarn.at/treefern (http://www.baumfarn.at) --------------------------------------------------- Amorphophallus network: http://www.amorphophallus.baumfarn.at/ _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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