I think there were some similar questions regarding finding the best
G. coefficient values before ( how to calculate or how to tune them )
I suggest you donot just play around and find some values through
guess, the best idea is providing FILEA and FILET for your experiment
and through Gencalc and based on these observations ( FILEA & FILET )
the model calculate the G.Co. values. The more years and sites field
data you have, the more accurate are coefficients values.
Then if you still haven't a reasonable agreement between model sim.
and your obs. data,( for example Anthesis date & Maturity ) you
better try sensitivity analysis and change the relevant coefficient
value and see the result.
Best Regards
M.Bannayan
University of Nottingham, Faculty of Agriculture,
Department of Physiology and Environmental Sci.
Tel: (44)- 115 - 9516260 - x: 8776
Fax: (44)- 115 - 9516261
E-mail: [log in to unmask]
Homepage:http://www.ccc.nottingham.ac.uk/~sbxbam/mbahome.htm