Hello Bob,

the purpose of PCYield is generally different, but if you want to become
familiar with ASCII test editors, as well as spend a tremendous amount of
time you can try to modify PCYield files.

I'll suggest to use DSSAT for this purposes, as GENCALC for instance, which
will help you in your coefficients calibration. After you finished with
estimations using DSSAT, you can use the result to replace PCYield genetic
coefficients file.

Goshko Georgiev

[log in to unmask]    Dr. Goshko Georgiev
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-----Original Message-----
From: DSSAT - Crop Models and Applications
[mailto:[log in to unmask]]On Behalf Of Robert Caldwell
Sent: Thursday, August 24, 2000 08:54 PM
To: [log in to unmask]
Subject: PCYield versus DSSAT for simulation runs. Advice?


Dear DSSATers,
     I have PCYield running for some sites, but want to try some things
that the PCYield interface doesn't give me access to. For example, I will
have to calibrate coefficients for a new semi-determinate genotype.
     Any advice? Should I enter the work in DSSAT? Or manually edit the
PCYield files to match the treatments I'm interested in? (Any hidden
pitfalls to using the PCYield interface?)

Sincerely,
Bob Caldwell, Cropping Systems Specialist,
   Dept. of Agronomy & Horticulture/SEREC/NEREC
   University of Nebraska - Lincoln
   306 Keim Hall, P.O. Box 830910, Lincoln, NE 68583-0910
[log in to unmask]    Phone: (402) 472-4792. FAX: (402) 472-7904.