Hello Jean-Philippe,
   SUBSTOR-potato v3.5 has the capability to simulate growth at different
CO2 concentrations. I hope this helps on your way to resolving the apparent
discrepancy.
Sincerely,
Richard

At 01:26 PM 8/22/02 +0000, Jean-Philippe Brassard wrote:
>Dear Listers,
>
>I wanted to know if substor has been modified like ceres and cropgro to take
>into account the CO2 fertilizer effect in DSSAT v.3.5? I'm asking because in
>the v3 user guide, only ceres and cropgro are mentioned as having been
>modified, but when I did simulations with substor-potato at different CO2
>levels, I had different results (yields). I might also mention that some of
>these results were quite suprising: in some instances, yields were lower at
>higher CO2 concentrations...
>
>Thank you all for your help and time,
>
>
>Jean-Philippe Brassard
>Étudiant gradué
>Laboratoire de climatologie
>Département de géographie
>Université de Montréal
>tel: (514) 343-8039
>email: [log in to unmask]
>
>
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