Thanks for your reply.

I found out that it is possible to build an X file with 999 treatments.  The
solution that I was sent is included below in case it is of interest to you.

>The read error occurs at the 100 level due to input data not in the correct
>format (i.e. field or >column in Fortran).
>In DSSAT V4, I can simulate up to 999 cultivars. See attached X file. To
>create an X file with more >than 100 treatments, I normally start with a
>working X file for less than 100 treatments and then >add more treatments
>using a text editor (UltraEdit). The XBuild in DSSAT messes up the format
> >starting at the 100 level after you save.

Regards,
Steven

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Steven Quiring
PhD Candidate
Department of Geography
216 Pearson Hall
University of Delaware
Newark, DE
19716-2541
Phone: (302)831-2344
Fax: (302)831-6654
Email: [log in to unmask]
Homepage: http://udel.edu/~squiring/
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