Gibberellic Acid

From: ted.held at us.henkel.com (ted.held at us.henkel.com) on 2008.03.26 at 19:42:02(17228) For what it's worth I would be reluctant to use gibberellic acid (available in the trade as "GA3", most commonly). I had a reluctant plant (Cryptocoryne, of course, which means it's small plant compared with the typical plant discussed on this list) and gave it a GA3 treatment (the formula for which I can send if you want to know - just contact me off-list). I just added it dropwise to the meristem, a drop or two every day for a week. Sure enough the plant flowered about a month later, after no flowers at all for more than a decade. Noting how unusual the flower looked I took a number of pictures with my dissecting microscope so I would have the flower anatomy preserved. Rather than the normal aroid shape, this flower looked like a shepherd's crook. The sides of the flower "kettle" were very weak, almost transparent. The plant made another flower a few weeks later and the second flower was also distorted-looking compared with normal Crypts, but a little stronger than the first one. I documented that inflorescence as well. Finally, about six months later I got another flower from the plant and this one looked like a typical C. wendtii, the most common type of Sri Lankan Crypts that aquarists keep. I concluded that this was just a wendtii type that is indifferent to sexual reproduction under my conditions. Others in the wendtii complex flower for me all the time without any encouragement. It has been several years now since this experience and I have gotten no additional flowers, from the original plant or any of its clone siblings. In short, I think GA3 can induce flowering, but I am not sure that what you get will be representative of the species. From what I learned from the web, there is not much certainty about formulations, strength of GA3 to use, or application. This is the same situation with several other growth hormones (including the famous 2-4 D, used as a broad-leaf weed killer) that you see discussed in the casual press. For Crypts, at least, I think flowering is not obligatory and may even be degenerate in some forms. But there is certainly a set of conditions that kick a plant into flowering and others that make it passive. It would be of great interest scientifically (and to horticulturists) to know what these conditions are. I don't use my GA3 anymore. Ted. +More -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.gizmoworks.com/mailman/private/aroid-l/attachments/20080326/e0175f0d/attachment.htm

From: ironious2 at yahoo.com (E Morano) on 2008.03.26 at 20:26:57(17229) Try ga3 on woody pants Ted. Your results will most likely improve. It is of the utmost importance to fertilize while using these hormones because the extra growth will leave the plant very malnourished if you dont. Erin ted.held at us.henkel.com wrote: +More For what it's worth I would be reluctant to use gibberellic acid (available in the trade as "GA3", most commonly). I had a reluctant plant (Cryptocoryne, of course, which means it's small plant compared with the typical plant discussed on this list) and gave it a GA3 treatment (the formula for which I can send if you want to know - just contact me off-list). I just added it dropwise to the meristem, a drop or two every day for a week. Sure enough the plant flowered about a month later, after no flowers at all for more than a decade. Noting how unusual the flower looked I took a number of pictures with my dissecting microscope so I would have the flower anatomy preserved. Rather than the normal aroid shape, this flower looked like a shepherd's crook. The sides of the flower "kettle" were very weak, almost transparent. The plant made another flower a few weeks later and the second flower was also distorted-looking compared with normal Crypts, but a little stronger than the first one. I documented that inflorescence as well. Finally, about six months later I got another flower from the plant and this one looked like a typical C. wendtii, the most common type of Sri Lankan Crypts that aquarists keep. I concluded that this was just a wendtii type that is indifferent to sexual reproduction under my conditions. Others in the wendtii complex flower for me all the time without any encouragement. It has been several years now since this experience and I have gotten no additional flowers, from the original plant or any of its clone siblings. In short, I think GA3 can induce flowering, but I am not sure that what you get will be representative of the species. From what I learned from the web, there is not much certainty about formulations, strength of GA3 to use, or application. This is the same situation with several other growth hormones (including the famous 2-4 D, used as a broad-leaf weed killer) that you see discussed in the casual press. For Crypts, at least, I think flowering is not obligatory and may even be degenerate in some forms. But there is certainly a set of conditions that kick a plant into flowering and others that make it passive. It would be of great interest scientifically (and to horticulturists) to know what these conditions are. I don't use my GA3 anymore. Ted. _______________________________________________ Aroid-L mailing list Aroid-L at www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l --------------------------------- Looking for last minute shopping deals? Find them fast with Yahoo! Search. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.gizmoworks.com/mailman/private/aroid-l/attachments/20080326/ef91747e/attachment-0001.htm

From: gibernau at cict.fr (gibernau at cict.fr) on 2008.03.26 at 20:31:27(17230) Hello, Henny and collaborators published many papers on inducing flowering by using GA3 hormone treatment. Apparently the method was succesfull on various aroids. Of course the concentration is important and one application is generally sufficient but you have to wait for about 3 weeks before flowering which is abundant. +More Below are the references for who is intestred in this topic Sincerely yours, Marc Title: Progress in ornamental aroid breeding research Author(s): Henny RJ, Norman DJ, Chen J Source: ANNALS OF THE MISSOURI BOTANICAL GARDEN Volume: 91 Issue: 3 Pages: 464-472 Published: 2004 2. Title: Gibberellic acid affects growth and flowering of Philodendron 'Black Cardinal' Author(s): Chen JJ, Henny RJ, McConnell DB, et al. Source: PLANT GROWTH REGULATION Volume: 41 Issue: 1 Pages: 1-6 Published: SEP 2003 3. Title: Gibberellic acid-induced flowering of Syngonium podophyllum Schott 'White Butterfly' Author(s): Henny RJ, Norman DJ, Kane ME Source: HORTSCIENCE Volume: 34 Issue: 4 Pages: 676-677 Published: JUL 1999 4. Title: FLOWERING OF ANTHURIUM FOLLOWING TREATMENT WITH GIBBERELLIC-ACID Author(s): HENNY RJ, HAMILTON RL Source: HORTSCIENCE Volume: 27 Issue: 12 Pages: 1328-1328 Published: DEC 1992 5. Title: FLORAL INDUCTION IN 2N AND 4N DIEFFENBACHIA-MACULATA PERFECTION AFTER TREATMENT WITH GIBBERELLIC-ACID Author(s): HENNY RJ Source: HORTSCIENCE Volume: 24 Issue: 2 Pages: 307-308 Published: APR 1989 6. Title: INDUCING FLOWERING OF HOMALOMENA-LINDENII (RODIGAS) RIDLEY WITH GIBBERELLIC-ACID Author(s): HENNY RJ Source: HORTSCIENCE Volume: 23 Issue: 4 Pages: 711-712 Published: AUG 1988 7. Title: FLOWERING OF AGLAONEMA-COMMUTATUM TREUBII FOLLOWING TREATMENT WITH GIBBERELLIC-ACID Author(s): HENNY RJ Source: HORTSCIENCE Volume: 18 Issue: 3 Pages: 374-374 Published: 1983 8. Title: INDUCING FLOWERING OF SPATHIPHYLLUM-FLORIBUNDUM (LINDEN AND ANDRE) NE BR WITH GIBBERELLIC-ACID (GA3) Author(s): HENNY RJ Source: PROCEEDINGS OF THE FLORIDA STATE HORTICULTURAL SOCIETY Volume: 94 Pages: 111-112 Published: 1981 9. Title: PROMOTION OF FLOWERING IN SPATHIPHYLLUM MAUNA-LOA WITH GIBBERELLIC-ACID Author(s): HENNY RJ Source: HORTSCIENCE Volume: 16 Issue: 4 Pages: 554-555 Published: 1981 10. Title: GIBBERELLIC-ACID (GA3) INDUCES FLOWERING IN DIEFFENBACHIA-MACULATA PERFECTION Author(s): HENNY RJ Source: HORTSCIENCE Volume: 15 Issue: 5 Pages: 613-613 Published: 1980 ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

From: ironious2 at yahoo.com (E Morano) on 2008.03.26 at 20:42:20(17231) Also I might add that you should not use GA3 on any plants that develop from bulbs or corms or on the bulbs them selves. GA3 has been know to kill these types of plants. I would recommend using Indole acetic acid on these types of plants perhaps but dont be surprised if your flowers mutate. Indole acetic acid (IAA) is an auxin plant hormone, and it is the most active auxin. ndole acetic acid (IAA) stimulates the growth of the main stem. Indole acetic acid is also involved in helping cuttings generate new roots. It is these root developing properties that may benefit these plants. Also you may want to try Indole Butyric Acid. Indole Butyric Acid is the leading plant hormone used to promote the formation of roots in plants and to generate new roots in the cloning of plants through cuttings. Then there is Naphthalene Acetic Acid. Naphthalene Acetic Acid can significantly increase the number, length and dry weight of root hairs, small roots and large roots. You can find all these products and more from http://www.super-grow.biz Theres a yahoo user group that is associated with that site that you can join too. +More ted.held at us.henkel.com wrote: For what it's worth I would be reluctant to use gibberellic acid (available in the trade as "GA3", most commonly). I had a reluctant plant (Cryptocoryne, of course, which means it's small plant compared with the typical plant discussed on this list) and gave it a GA3 treatment (the formula for which I can send if you want to know - just contact me off-list). I just added it dropwise to the meristem, a drop or two every day for a week. Sure enough the plant flowered about a month later, after no flowers at all for more than a decade. Noting how unusual the flower looked I took a number of pictures with my dissecting microscope so I would have the flower anatomy preserved. Rather than the normal aroid shape, this flower looked like a shepherd's crook. The sides of the flower "kettle" were very weak, almost transparent. The plant made another flower a few weeks later and the second flower was also distorted-looking compared with normal Crypts, but a little stronger than the first one. I documented that inflorescence as well. Finally, about six months later I got another flower from the plant and this one looked like a typical C. wendtii, the most common type of Sri Lankan Crypts that aquarists keep. I concluded that this was just a wendtii type that is indifferent to sexual reproduction under my conditions. Others in the wendtii complex flower for me all the time without any encouragement. It has been several years now since this experience and I have gotten no additional flowers, from the original plant or any of its clone siblings. In short, I think GA3 can induce flowering, but I am not sure that what you get will be representative of the species. From what I learned from the web, there is not much certainty about formulations, strength of GA3 to use, or application. This is the same situation with several other growth hormones (including the famous 2-4 D, used as a broad-leaf weed killer) that you see discussed in the casual press. For Crypts, at least, I think flowering is not obligatory and may even be degenerate in some forms. But there is certainly a set of conditions that kick a plant into flowering and others that make it passive. It would be of great interest scientifically (and to horticulturists) to know what these conditions are. I don't use my GA3 anymore. Ted. _______________________________________________ Aroid-L mailing list Aroid-L at www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l --------------------------------- Never miss a thing. Make Yahoo your homepage. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.gizmoworks.com/mailman/private/aroid-l/attachments/20080326/1869a367/attachment-0001.htm

From: honeybunny442 at yahoo.com (Susan B) on 2008.03.26 at 23:43:21(17235) Also kind of a routine thing from Zantedeschia wholesalers, it does lead to some uh, interesting inflorescences and leaves. Susan +More --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.gizmoworks.com/mailman/private/aroid-l/attachments/20080326/62d07e37/attachment-0001.htm

From: honeybunny442 at yahoo.com (Susan B) on 2008.03.27 at 02:18:45(17236) Here's the technical data for Zantedeschia treatment +More E Morano wrote: Also I might add that you should not use GA3 on any plants that develop from bulbs or corms or on the bulbs them selves. GA3 has been know to kill these types of plants. --------------------------------- Never miss a thing. Make Yahoo your homepage. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.gizmoworks.com/mailman/private/aroid-l/attachments/20080326/b7a6916a/attachment-0001.htm

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