Gladiolus dalenii hybrid

Nicholas Wightman
Mon, 15 Oct 2012 12:53:44 PDT

Why can't there be a genetic component to the streaking? The Gladiolus dalenii subsp. dalenii plants that I have on my property in Zambia display quite a variation in streaking with some pure lemon yellow forms to some heavily streaked so that the flowers appear orange or reddish from a distance. There's also a few that have a different flowering time as most come up and bloom by early to mid December but another form (with stronger stalks and broader leaves) that waits until around February to bloom.…



> From:
> To:
> Date: Mon, 15 Oct 2012 12:03:04 -0700
> Subject: Re: [pbs] Gladiolus dalenii hybrid
> On 15 Oct 2012, at 12:33, Hans-Werner Hammen wrote:
> > I read some suggestion, this Gadiolus be infected by Virus. Allthough many
> > plants might carry Viruses latently, the color pattern does NOT indicate
> > Mosaic-Virus. The typical SHARP transitions of Mosaic, are absent. The fliowers
> > of your Gladiolus are beautiful, and there is actually some sophisticated
> > Gladiolus Hybrids, that show this beautiful kind of dark streaks.  Who ever is
> > fast, to conclude Mosaic, Look for Gladiolus grandiflora 'Passos'rather than
> > implanting frustration, into other people's Heart.
> No one said it was a *mosaic* virus.
> I wrote "The streaking on the petals looks suspiciously like a virus infection."
> Alberto Castillo wrote "Looks like a heavily virused Gladiolus garnieri."
> Janos Agoston wrote "I think it is some virus."
> You will note that all three of us pointed to virus infection as a possibility, 
> not an established fact, in this case.
> A reminder too that the beautiful flaming and streaking of parrot tulips is due 
> to "Tulip Breaking Virus". I wonder if, like parrot tulips, those 
> "sophisticated gladiolus hybrids that show this beautiful kind of dark streaks" 
> of which you write owe their beauty to a virus infection. After all the 
> widespread occurence of this gladiolus in northern Italy is prima facie 
> evidence that the putative virus does not weaken this species of gladiolus.
> It would be irresponsible for those of us who responded to have remained 
> silent, even if we had to bear potentially bad news. Wouldn't the OP have been 
> even more frustrated if he brought this gladiolus into his garden and as a 
> result lost his more delicate species to it?
> -- 
> Rodger Whitlock
> Victoria, British Columbia, Canada
> Z. 7-8, cool Mediterranean climate
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