CULT?: Abnormal flowers
- To: i*@onelist.com
- Subject: CULT?: Abnormal flowers
- From: "* B* <r*@hsc.unt.edu>
- Date: Fri, 16 Oct 1998 17:16:54 -0500
- Content-Disposition: inline
From: "Rodney Barton" <rbarton@hsc.unt.edu>
All,
Last spring there were a number of reports on the list of irises blooming with abnormal flowers. I myself had an I. cristata bloom with 5 falls. Speculation was that it was due to the low temperatures. I'm currently reading a book, a review actually, "The Development of Flowers" by Richard Greyson. There is not a single mention of irises. He does site a study of flower development in Cannabis where plants were induced to flower at reduced night temperature (22'C for 8 hr and 10'C for 16 hr for 5 cycles). These plants had significantly more abnormal flowers than those induced at the control temperature (22'C constant). The abnormalities included missing, extra and fused petals. Greyson also sites a couple of other studies where environmental factors were shown to shown to alter flower development. It seems likely that this is what happened with our iris this spring.
Rodney Barton
rbarton@hsc.unt.edu
Hickory Creek, (North Central) Texas, USA
Zone 7/8, typical temp range 15 - 105 F (-9 - 41 C)
AIS, SIGNA, SPCNI, SLI, Iris-talk
North American Native Iris Web Page:
http://molly.hsc.unt.edu/~rbarton/Iris/NANI.html
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