Re: HYB: Purple Leaf Base
- Subject: Re: HYB: Purple Leaf Base
- From: L* M*
- Date: Wed, 01 Aug 2001 08:29:57 -0400
<.....if there were more than a few seedlings from the cross.....you
would expect 3/4 of the seedlings from two pbf parents to themselves
show pbf. Jeff Walters in northern Utah>
Unless (sez the Rot Queen) there is something else going on with the pbf
seeds/seedlings in Chuck's cross such that they have the unfortunate mix
of genes that makes them prone to death before they get big enough to
exhibit pbf. Suppose 40 seeds = 30 with pbf, 10 without. Suppose only
half germinate, with germination skewed for some reason towards non pbf
= 10 with, 10 without. Suppose all the pbf die or are discarded = 10
non pbf from the cross.
Perhaps not likely, but I keep having to remind myself that 'kept plant'
results from crosses don't necessarily explain what's going on (
thinking of chasing pedigrees in the checklists) & keeping in mind that
Chuck Chapman is selecting for hardiness in his growing conditions.
Linda Mann east Tennessee USA zone 7/8
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