beta_95: Beta equation of development rate as a function of...

Description Usage Format Details Source

Description

Yin, X., Kropff, M.J., McLaren, G., and Visperas, R.M. (1995) A nonlinear model for crop development as a function of temperature. Agricultural and Forest Meteorology 77(1): 1-16.

Usage

1

Format

A list of eight elements describing the equation.

eq

The equation as a formula object.

eqAlt

The equation as a string.

name

The equation name.

ref

The equation reference.

refShort

The equation reference shortened.

startVal

The parameter values found in the literature with their references.

com

An otional comment about the equation use.

id

An id to identificate the equation.

Details

Equation: rT ~ exp(mu) * (T - Tb)^aa * (Tc - T)^bb

where rT is the development rate, T the temperature, mu, aa, and bb the model parameters, Tb the base temperature, and Tc the ceiling temperature.

Source

http://dx.doi.org/10.1016/0168-1923(95)02236-Q



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