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RE SEed germination

  • Subject: [PHOTO] [iris-photos] RE SEed germination
  • From: irischapman@netscape.net
  • Date: Tue, 11 Jan 2005 13:53:04 -0500

akene. A dry, one-seeded indehiscent fruit, with the pericarp fitting closely 
around the seed. GardenWeb Glossary of Botanical Terms. ...
http

This describes what we have with the iris seeds. The attached article 
describes some research on germination of rose seed, very relevent to iris 
seeds, at least in my mind.

The idea of leavinf soak for two weeks before vernalization seems very 
relevent. The photo I posted a few weeks ago of the seeds under lights had 
exactly those type of conditions. The seeds hadn't germinated over winter in 
the garage, but hadn't had a warm period first. They were kept watered in the 
spring and the seeds without germination (about 150 pods) went into the 
fridge for the summer, about 3.5 months. Germination was spectacular.

The article also has some ideas on scarification of seseds to enhance 
germination. All of these ideas had been tried with iris seeds at differnt 
times and some moderate imporvment had been noted.

The best idea seems period of warmer temperature before vernalization.

Chuck Chapman

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