Paltridge and Denholm (1974) wheat model from clone of Cohen 1971 Seed set model)
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