John I. Jones wrote:
>> I would have thought that horns, like color, were genetically controlled.
How is it that sometimes they sometimes show up and sometimes not?
Many "genetically-controlled" traits are also affected by culture. Lloyd
Austin, the "father" of the space-age iris, recommended the same supplemental
food and water for peak performance from them as for rebloomers.
To take a different example, TBs have a higher bud-count than arilbreds, in the
genetically-controlled sense. In my own garden, however, the average bud-count
of quarterbred seedlings is higher than the average bud-count of named TBs.
While I might be tempted to say that this is an indication of the superiority of
my seedlings, I know that the TBs simply can't live up to their genetic
potential under these conditions.
Sharon McAllister (firstname.lastname@example.org)