Re: HYB: Seed Developement
- Subject: Re: [iris-talk] HYB: Seed Developement
- From: a*@cs.com
- Date: Sun, 8 Jul 2001 16:13:02 EDT
In a message dated 7/8/01 6:08:21 AM Mountain Daylight Time,
PatrickJOrr@hotmail.com writes:
<< From what I have been told, once an ovary accepts pollen of one variety,
it does not accept pollen from another... From what I have experienced,
pollinating only one lip produces seeds in all three chambers.
In other words, if you mix together 50 grains of pollen from 20 different
irises each and brush all the grains onto a stigmatic lip, the ovary will
only accept pollen from the very first grain that makes it and any of the
other 49 grains of that one variety that may follow.
Now, whether that is true or not is beyond me. >>
This is not true, in my experience.
What IS true, however, is that the very process of producing pollen tubes
depletes the juices in the stigmatic lip so that the first pollen grains to
form tubes have a distinct advantage in the race. In your hypothetical case,
I can envision a particularly strong cultivar possessing an advantage -- but
I don't think that's the same as winner-take-all.
As always in hybridizing, there are complicating factors....
Sharon McAllister
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