Re: [nafex] Re: chilling hours

[Phil Norris <COUSINPHIL@ACADIA.NET>]

Del,

It would be pretty easy for a computer to read and respond to a digital
thermometer.  For that matter you could also keep track of humidity and
rainfall by computer.  Why not?  You could even write a program for your
walk-in cooler that would perform the chilling hour requirements tapering
up at either end.  Know what I mean?


Phil Norris
East Blue Hill Maine
Z4

>Tom, this is interesting. what is the Utah model?  what specie?       It
>seems it would take a temperature actuated computer to actually calculate
>chill hours in a season!.
>And do chill units apply more to above ground than below? Or above snow than
>below?   Mn. Del
>
>
>>From: Tom Olenio <tolenio@sentex.net>
>
>>Below zero does not count as chilling hours.  The temperature has to be
>>higher
>>than freezing and lower than 60F.
>>
>>Notice in the following model that tempertures over 60F degrees result in
>>negative chill units (you lose chilling units), and none accumulate under
>>34F
>>degrees.
>>
>>     Utah Model
>>     1 hour below 34 degrees F =0.0 chill unit
>>     1 hour 35-36 degrees F =0.5 chill units
>>     1 hour 37-48 degrees F =1.0 chill units
>>     1 hour 49-54 degrees F =0.5 chill units
>>     1 hour 55-60 degrees F =0.0 chill units
>>     1 hour 61-65 degrees F =-0.5 chill units
>>     1 hour >65 degrees F =-1.0 chill units
>>
>>Hope this helps to calculate chilling hours.
>>
>>Regards,
>>Tom
>>==
>>Thomas Olenio
>>Ontario, Canada
>>Hardiness Zone 6a
>>
>
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