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?
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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 
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
 
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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/
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