Paltridge and Denholm (1974) wheat model from clone of Cohen 1971 Seed set model)
A. T.
Paltridge and Denholm (1974) phenology model, parameterized for wheat.  For education purposes.

Modified from time-limited yield model from:

Cohen, Dan. 1971. Maximizing Final Yield when Growth is Limited by Time or by Limiting Resources.  Journal of Theoretical Biology 33: 299-307