Re: CULT: Propagation by Partition of Rhizome--for Sharon
- To: Multiple recipients of list <i*@rt66.com>
- Subject: Re: CULT: Propagation by Partition of Rhizome--for Sharon
- From: P* &* Y* T* <t*@dynamite.com.au>
- Date: Thu, 23 Apr 1998 08:32:01 -0600 (MDT)
At 23:44 22/04/98 -0600, you wrote:
>>"For commercial propagation on a larger scale, the mature rhizomes >are
>cut into half-inch sections and placed in coldframes with sand, >where
>they develop advantitious buds...............
>
>With trees potential branch buds are inhibited (hormonally?) in some
>way, so that a main leader develops. If this is cut, new branches
>develop. In the same way, shrubs and smaller plants put out more
>branches, if trimmed back. I imagine a similar process occurs in irises
>and may have something to do with why some rz's produce more increase
>than others. If so, I wonder if there is a finite number of advantitious
>buds which can develop and would that be 1 bud per leaf formed, as new
>increase seems to correspond to leaf growth.
>Any ideas anyone?
>Jan Clark
>
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Jan,
By definition buds appear in the old leaf nodes (regardless of wheyther
they have grown over or whether they are still obvious. What you said
about dormancy and chemical inhibition was right on target to my knowledge.
Given how close together iris leaves grow on the rhizome I'd imagine that
there are many many dormant buds that could be stimulated this way. Yes
there would be a finite number of these buds and they would depend upon the
length of the rhizome, however there'd certainly be lots of them.
Certainly makes for an interesting way to increase your irises.
Cheers. Paul Tyerman
