Re: Re: inducing tetraploidy

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I've been playing around with oryzalin based on a scientific article I found that had good results in daylily.  I calculated a rate using the Surflan concentration (I forget what the actual concentration and rate was) and the the smallest I could accurately measure was 0.5 ml using a diabetic syringe that I obtained from the pharmacy.  I had to ask for it specially (with sincerity and a smile) and explain what I was using it for.  0.5 ml in 1 Gallon distilled water and a drop of wetting agent such as spreader sticker or polysorbate 80.  You can make it ahead of time and store in the refridgerator for a while til you need it.

I haven't had much yet I wanted to use it on though! so can't say how well it works for Iris.

-----Original Message-----
From: Chuck Chapman
Sent: Jan 4, 2014 4:09 PM
To: iris-species@yahoogroups.com
Subject: Re: [iris-species] Re: inducing tetraploidy

 

Much safer then colchicine. Use with same care as using household
chemicals such as bleach. Safer then bleach actually.

Chuck Chapman

-----Original Message-----
From: Sean Zera <zera@umich.edu>
To: iris-species <iris-species@yahoogroups.com>
Sent: Sat, Jan 4, 2014 2:27 pm
Subject: Re: [iris-species] Re: inducing tetraploidy

 
I've thought about trying the Oryzalin method, but I don't feel that
safe playing with chemicals either. The EPA says it's basically
nontoxic to humans when ingested, but is a probable carcinogen when
exposed chronically.

http://www.epa.gov/oppsrrd1/REDs/factsheets/0186fact.pdf

Sean Z

On Sat, Jan 4, 2014 at 2:05 PM, Dennis Kramb <dkramb@badbear.com>
wrote:
 
a non-iris friend sent me this link: 
http://members.tripod.com/h_syriacus/tetraploidy.htm

it's filled with many familiar names!  but those email addresses look a
bit out-of-date.  ;-)

oh, and the daylily guy already wrote back.  he told me "nope", he
doesn't mess with that stuff either.

Dennis in Cincinnati