Parameter

Source

Units

Value

Thermal time accumulation

Duration-end of juvenile to panicle initiation

C

˚C day

245

Duration-flag leaf to flowering stage

C

˚C day

195

Duration-flowering to start of grain filling

C

˚C day

80

Duration-flowering to maturity

C

˚C day

760

Duration-maturity to seed ripening

L

˚C day

1

Photoperiod

Daylength photoperiod to inhibit flowering

D

H

11.5

Daylength photoperiod for insensitivity

D

H

13.5

Photoperiod slope

L

˚C/h

0.01

Soil water stress factor

D

-

1.125

Plant height (max)

O

mm

1650

Base temperature

L

˚C day

8

Optimum temperature

D

˚C day

30