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Subject:
kernel number function (GPP)
From:
Elvin O Roman-paoli <[log in to unmask]>
Reply To:
DSSAT - Crop Models and Applications <[log in to unmask]>
Date:
Wed, 11 Jun 1997 16:44:29 -0500
Content-Type:
TEXT/PLAIN
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TEXT/PLAIN (18 lines) 
We want to know what is the current function to determine kernel number
in the CERES-Maize model. The original function is suppose to be
 
        GPP=G2*(PSKER-195.0)/(1213.2+PSKERSP-195.0).
 
We have a different vertion in our source code, which is:
 
        G2*PSKER/7200.0 + 50.0
 
Please, could somebody explain us what these two constants (7200, 50) mean?
Is there any publication about this change?
 
Thanks in advance.
 
Elvin Roman Paoli
Kansas State University
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