Re: CULT: germination traits and selection
- Subject: Re: CULT: germination traits and selection
- From: D* G* H*
- Date: Mon, 29 Mar 1999 21:45:49 -0700
- Priority: normal
From: "David G. Holm" <sherlock@amigo.net>
On 29 Mar 99, at 20:03, David G. Holm wrote:
> This question may be restated - is there a characteristic that irises have
> that correlates with a lack of seed dormancy? I have read about similar
> studies with potatoes. The lack of dormancy for true or botantical potato
> seed has been associated with earlier maturity for the tuber propagated
> plant.
>
> It is possible that this lack of seed dormancy in irises may correlate
> with some other characteristic that may or may not impart better
> adaptation to hot climates. This correlation may or may not be the same
> for different iris species. Only further research could reveal if any of
> these relationships exist. Perhaps someone else on iris-talk is aware of
> specific studies designed to research possible relationships between seed
> dormancy and other characteristics.
>
>
One more item that I forgot to add - short dormancy in the true potato seed
was also correlated with shorter dormancy in the potato tubers. It would be
interesting if shorter dormancy in iris seed was associated with shorter
dormancy in iris rhizomes. Perhaps there is some association with the
ability to rebloom? Just a thought. Any other thoughts out there?
Dave Holm
Professor of Horticulture (Potato Breeding)
Colorado State University
sherlock@amigo.net
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