Dear Gerrit

In DSSAT4, the coefficiencts used in the CSM-Cropsim-Ceres model differ from those used in DSSAT version 3.5, is the change occured for all cereal crops or just for some given crops, e.g. wheat.  I used the version 3.5 rice coefficients in DSSAT 4, but there is no problem.

Thanks.
----- Original Message -----
From: "Gerrit Hoogenboom" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, July 21, 2005 4:37 AM
Subject: Re: new wheat gen. coefficients


>! Coefficients used in the CSM-Cropsim-Ceres model differ from those used
> ! in DSSAT Version 3.5. They can be calculated (approximately) from
> ! V3.5 coefficients as follows:
>
> ! P1V   = P1V(v3.5)*10
> ! P1D   = P1D(V3.5)*20
> ! P5    = P5(V3.5)*20 + 430
> ! G1    = G1(V3.5)*5 + 5
> ! G2    = (G2(V3.5)*0.35+0.65) * P5/20
> ! G3    = G3(V3.5)*0.7
> ! PHINT = PHINT(V3.5)
>
>
>
> At 12:47 PM 07/20/2005, you wrote:
>>Dear all,
>>
>>I cant use any of the wheat cultivars wich are already in version 4,
>>as they aren' t for durum wheat. So I found genetic coefficients for
>>others wheat varieties and I tried to import them from WHCER040.CUL
>>by hand, but doesn' t work.
>>Is there any way to import them, maybe with use of GenCalc tool from
>>an earlier version of DSSAT ?
>>I have no experimental data for these varieties.
>>
>>
>>Regards,
>>
>>Mary Vitaliotou
>