Re: Re: inducing tetraploidy

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Tetraploids are often (usually) fertile. Diploids are never fertile on
wide crosses. If tertraploids set seed, then so will diploids. If the
diploid corosses don't set seed, then the genes don't match up well
enough and having tetraploids is very unlikely to make a difference.

If you make a diploid cross and get seeds, it is easy to treat seeds at
time of germination and get tetraploids. MMuch easier to treat
germinating seeds then converting a plant.

Chuck Chapman

-----Original Message-----
From: Kenneth Walker <kenww@astound.net>
To: iris-species <iris-species@yahoogroups.com>
Sent: Mon, Jan 6, 2014 8:53 am
Subject: Re: [iris-species] Re: inducing tetraploidy

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Question: if I do a wide cross with diploids and the same wide cross
with tetraploids, is one more likely than the other to produce viable
seeds?

Ken Walker