Hello, Karl
 
The definition of the wheat genetic coefficients are listed below.
 
P1V   Relative amount that development is slowed for each day of
      unfulfilled vernalization, assuming that 50 days of
      vernalization is sufficient for all cultivars.
P1D   Relative amount that development is slowed when plants are
      grown in a photoperiod 1 hour shorter than the optimum (which
      is considered to be 20 hours).
P5    Relative grain filling duration based on thermal time (degree
      days above a base temperature of 1 C), where each unit increase
      above zero adds 20 degree days to an initial value of 430
      degree days.
G1    Kernel number per unit weight of stem (less leaf blades and
      sheaths) plus spike at anthesis (1/g).
G2    Kernel filling rate under optimum conditions (mg/day).
G3    Non-stressed dry weight of a single stem (excluding leaf
      blades and sheaths) and spike when elongation ceases (g).
PHINT Phylochron interval; the interval in thermal time (degree days)
      between successive leaf tip appearances.
 
Paul
 
Paul W. Wilkens
International Fertilizer Development Center
P.O. Box 2040
Muscle Shoals, Alabama  35662 USA
Tel      (256) 381-6600 (New Area Code!)
Fax     (256) 381-7408 (New Area Code!)
e-mail [log in to unmask]
http://www.ifdc.org/
 
"Once we've got the bugs ironed out, we'll be running on flat bugs."
 
 
 
-----Original Message-----
From: Schnelle, Karl [mailto:[log in to unmask]]
Sent: Monday, July 27, 1998 8:09 AM
To: [log in to unmask]
Subject: Re: CERES-Wheat Coefficients
 
 
And here I thought "Karl Tonkowa" forgot to include the variety names...
 Can you explain what these are, just for the benefit of the non-wheat
people on the list?
 
Karl
Schnelle
 
>----------
>From:  Brandon Claborn[SMTP:[log in to unmask]]
>Sent:  Monday, July 27, 1998 7:58 AM
>To:    [log in to unmask]
>Subject:       Re: CERES-Wheat Coefficients
>
>The varieties are "Karl" and "Tonkowa".  The row across the top is the
>variable name for the genetic coefficients.
>
>Thanks,
>Brandon Claborn
>