Re: HYB: thermo-hygrometer

--- In iris-talk@y..., Linda Mann <lmann@v...> wrote:
about the possibility of making successful crosses when "humidity 
below ....30%?"

Neil replies--

In Western Idaho in late May the humidity was rarely above 30% during 
iris bloom season except early some mornings.  We had Taylor 
Instruments Hygro-thermographs in the orchards, so could track 
conditions there.

Typically, the daytime percentage as I recall was lower than that on 
most days, more like 20%.  My experience there was about the same as 
here--the condition of the stigma and the pollen were what was 
important, not so much the weather.  Fresh blooms, fluffy pollen have 
their own humidifiers built in.  There is a microclimate within the 
well-protected part of the flower were the pollen makes contact that 
raises the chances for sucess.

I should add that my garden in both locations there was up against 
desert areas, with oncoming air quite dry.  

I do recall that crosses made fairly early in the mornings had higher 
percentages of takes than those made later--same as here.  I rarely 
exceeded 50% takes.  There were days when nothing took.  But I find 
that true in NC also.  Here, the factor is wet heat--just as 
destructive as dry heat if not more so.

Sharing just for the fun of it--Taylor Instruments moved to Arden, 
NC, many years ago and many of the key families who formed our parish 
were either Taylor execs and employees or from a Westinghouse group 
that came about the same time from Buffalo, NY.  The Taylor plant was 
one I went by almost daily on my rounds.  Felt sort of odd, as I had 
used Taylor products most of my life in the orchards before that part 
of my bio came to an end.  Now I was seeing where those were made.

Neil Mogensen  z 6b/7a near Asheville, Hendersonville, NC




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