AR: Quarterbred Aril Qualities


Message text written by Walter Moores:
>
        The JT handbook says a quartebred should show two aril 
characteristics, but doesn't say what they are.  I was wondering if
the rhizome counts.  You cannot see it either in the garden or on 
the showbench, and I have thought of this at digging time.  My little 
ARIL REVERIE's rhizomes look like they would produce half or 
three quarter type blooms.  The rhizome counts in my estimation, 
because when you see it, you can easily tell that the arilbred blood 
is there.

        Is this a foolish question?  

Can somebody name the arilbred qualities you look for in a 
quarterbred?
<

The resolution that specified this included only examples, not an exclusive
list, but all of those listed pertained to the flower rather than the
plant.  This following is based on that resolution but paraphrased, because
I find it easier to examine the flower systematically rather than jumping
around in search of SOMETHING that looks "aril":

Standards:
Elongated, as in I. korolkowii
Broadly domed and reflexed, as in I. gatesii
Ruffled and reflexed, as in I. lortetii
Globular, as in I. susiana
With beard [usually sparse] on the inside of standards, as well as falls.

Falls:
Flaring and lanceolate, as in I. acutiloba
Narrow and flaring, as in I. paradoxa
Extremely broad, as in many onco species
Well-recurved, as in many onco species
A definable signal at the end of the beard, as in  many onco species
A prominent V-shaped spot in contrasting color, as in I. korolkowii

Beards:
Linear
Thick
Heavy
Broad 
Diffuse

Style arms:
Exaggerated, as in I. iberica

Overall:
Conspicuous veining pattern
Accentuated globular form

When you consider the number of diverse aril species that have gone into
the gene pool of our modern arilbreds,  you can see how it would be
impossible to draw up a simple list of "acceptable" aril traits -- but
these examples illustrate the process of transforming the subjective
assessment that something has an "aril look" into quantifiable traits that
can be associated with ancestral species.

No -- I didn't write the resolution.  But I've lived with it for some years
and had to go through the process of using it to evaluate seedlings.

Sharon McAllister
73372.1745@compuserve.com
 

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