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Date: | Tue, 24 Mar 1998 06:46:58 +0800 |
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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
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