I have tried to trace the problem, my findings are

Yes, the CERES-Wheat model is not sensitive to plant population density when
run in the sensitivity mode.

but

CERES-Wheat model is sensitive to plant population density when run in
the batch
mode by creating treatments of the plant population density  by changing the
"Management > Planting > plant population at seeding", in the X-File.

Best wishes

Humaira

On 10/10/07, Bahram Andarzian <[log in to unmask]> wrote:
>
> Dear my DSSAT Friends
>   Hi
>   Does CERES-wheat model is not sensitive to change plant population
> density?
>   I have run this model in sensitivity analysis mode and changed plant
> population from 50 up to 1000 per m2 but the simulation results do not
> response.
>   Thank in advance
>   Bahram Andarzian
> Iran-Ahvaz
>
> ---------------------------------
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--
Humaira Sultana
Research Felllow-Agriculture
Global Change Impact Studies Centre
1st Floor, Saudi Pak Tower, Jinnah Avenue, Blue Area,
Islamabad, Pakistan.
Ph: 92-51-9219785
Fax:92-51-9219787