Dear Ed,
 
We are using the following translation of CERES wheat stages into Zadoks:
1=10,
2=30,
3=43,
4=59,
4.4=65,
5=70,
6=90.
 
Senthold
 
 
 
 
At 02:00 PM 3/19/98 -0700, you wrote:
>I am trying to relate the growth stages in CERES-Wheat to Zadoks' scale, =
>but I can't decide where the end of CERES-Wheat stage 2 and beginning of =
>stage 3 should fall.  I'm no expert in this, so my best guesses for the =
>other stages may not be very good either.
>
>
>CERES           Description                                     Zadoks?
>-------------------------------------------------------------------------=
>---------------------
>1       Emergence to terminal spiklet initiation                        10 to ?
>2       Terminal spiklet to end of leaf growth                  ? to 42
>3       End of leaf growth to end of preanthesis
>                ear growth                                      43 to 59?
>4       End of preanthesis ear growth to
>                beginning of grain filling                              60
to 69=20
>5       Grain filling                                           70 to 89
>6       End of grain filling to harvest                         >90
>
>Any suggestions or other guesses are appreciated.  If someone has =
>figured this out for the Haun or Feekes scale, that would work as well.
>
>Thanks,
>Ed Barnes
>
>--------------------------------------------------------------------
>Edward M. Barnes, Ph.D.             Phone: (602) 379-4356 x 268
>Agricultural Engineer                 Fax: (602) 379-4355
>USDA, ARS                           email: [log in to unmask]
>U.S. Water Conservation Lab
>4331 E. Broadway Rd.
>Phoenix, AZ 85040
>http://www.uswcl.ars.ag.gov/
>---------------------------------------------------------------------
>
>
Senthold Asseng
Crop Modeller
CSIRO Plant Industry
Private Bag PO
Wembley WA 6014
Australia