Re: Re: inducing tetraploidy

 

Chuck, perhaps I've misunderstood, but I thought the theory was if two wide species won't cross as diploids, they might as tetraploids.  (For example, Little Caillet.)

Regardless, I'm going to attempt conversions on:  tridentata, fulva, prismatica, and tectorum.  And possibly:  wilsonii, and black chrysographes if I can find them.

The Oryzalin technique I'm going to follow had approx 10% success rate with Watsonia sp.

Thanks to everyone for the tons of feedback & support I got on this endeavor.

Dennis in Cincinnati



On Mon, Jan 6, 2014 at 9:55 AM, Chuck Chapman <i*@aim.com> wrote:
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

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