abnormal flowers

From: Claire Piette claire.piette at rug.ac.be> on 2000.03.29 at 22:53:44(4272) Hello, Recently we found some abnormal Spathiphyllum flowers in our greenhouse. Some are smaller then usually; others have a normal size, but lack a spathe and instead there is a little of white amorph tissue. The same plant has normal and abnormal flowers. The only thing that we changed during culture, is fumigation with Bladafume against thrips. Does someone have a hypothesis for these abnormal flowers? Thank you, Claire Piette +More Claire.Piette@rug.ac.be

From: "Julius Boos" ju-bo at email.msn.com> on 2000.03.30 at 03:52:37(4273) Hi Claire, I have seen abnormal blooms on Spathi`s but generally in commercially grown (and sprayed?) hybrids. Have you had them for a long time, and they have never done tis before??? Are they store-bought or wild collected species?? The hybrids sometimes produce double spathes, no spathes, double or forked spadices, all kinds of deformities. I don`t know if it`s the breeding, OR the sprays to make them all bloom together, or fungicides or what it may be. Hope this helps, Cheers, Julius +More ju-bo@msn.com>Hello, Recently we found some abnormal Spathiphyllum flowers in our greenhouse. Some are smaller then usually; others have a normal size, but lack a spathe and instead there is a little of white amorph tissue. The same plant has normal and abnormal flowers. The only thing that we changed during culture, is fumigation with Bladafume against thrips. Does someone have a hypothesis for these abnormal flowers? Thank you, Claire Piette Claire.Piette@rug.ac.be<

From: DBurch2345 at aol.com on 2000.03.31 at 00:08:53(4278) Claire - it used to be fairly common to see abnormalities in commercial spath crops that came from tissue culture, but in recent years I haven't seen that as a problem too often. It is always a possibility with micropropagation, however. +More I should check back with your supplier to see if there have been any other reports of instability in the cultures of this particular cultivar. Nothing to do for this crop, if that is the case, but for next time,switch to another variety that is stable. Your fumigant could also be the culprit, although I haven't heard of other problems with it. Try your supplier on that, too. They should be properly grateful if you are pointing out a problem with the product before it turns into a benlate ! I know that this is an "ivory tower" response, and doesn't help your immediate problem - I just hope that you are finding only a few plants in your crop with the bad flowers. Derek.

From: Don Burns donburns at macconnect.com> on 2000.03.31 at 00:10:33(4279) Date: Thu, 30 Mar 2000 10:42:57 -0600 (CST) Reply-To: denis@skg.com Originator: aroid-l@mobot.org +More Sender: aroid-l@mobot.org Precedence: bulk To: aroid-owner@mobot.org Subject: Re: abnormal flowers MIME-Version: 1.0 Status: OR Dear Claire: I do not grow Spath but I suggest you contact Dr. Jake Henny at the University of Florida' s Apopka Research Facility... He breeds Spath and would be more in tune with the defects and deformities which occurr when plants are sprayed with inappropriate chemicals. I suggest you be more specific about what Spathiphyllum Variety and the exact treatments the plants were subjected to. His E-mail address is RJH@icon.apk.ufl.edu The process of flowering in Spath is controlled by hormones ( day length dependant). Some varieties may be more prone to producing defective inflorescences than others. If it is only a small percentage that is defective then you can salvage the crop by removing any bad flowers. If all the flowers turn our bad then I do not think that there is anything that can be done after the fact... that crop of spath maybe toast. At least you will know what not to do for the future. Denis at Silver Krome Claire Piette wrote: > Hello, > > Recently we found some abnormal Spathiphyllum flowers in our greenhouse. > Some are smaller then usually; others have a normal size, but lack a > spathe and instead there is a little of white amorph tissue. The same > plant has normal and abnormal flowers. The only thing that we changed > during culture, is fumigation with Bladafume against thrips. > Does someone have a hypothesis for these abnormal flowers? > Thank you, > > Claire Piette > Claire.Piette@rug.ac.be Content-Type: text/x-vcard; charset=us-ascii; name="vcard.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Denis Rotolante Content-Disposition: attachment; filename="vcard.vcf" vcard.vcf_1

From: StellrJ at aol.com on 2000.03.31 at 03:33:05(4284) The hybrids sometimes produce double spathes, no spathes, double or forked spadices, all kinds of deformities. I don`t know if it`s the breeding, OR the sprays to make them all bloom together, or fungicides or what it may be. Hmmm...this is a little off-subject re: aroids, but I was just reminded of something I have seen in cultivated Codiaeums, especially the yellow-marked varieties. Near (but not at) the tip of the leaf is a little filament, which occasionally shows a rudimentary leaf blade at its tip. The filament, I presume is normal, but I do wonder about that secondary blade. Is there not some aroid which occasionally does this? I cannot recall which, but I have read about it.

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