WOFOST_GT2 Parameters

Name

MinValue

MaxValue

DefaultValue

Units

Type

Description

UsePhotoPeriod

0

1

0

unitless

int

If true, account for photoperiod effect on development

SpecificPodArea_SPA

0

0.0005

0

ha kg-1

double

Specific pod area (SPA)

SpecificLeafAreaAtTillering

2

60

18

m2 kg-1

double

Specific leaf area at tillering

SpecificLeafAreaAtEmergence

2

60

27

m2 kg-1

double

Specific leaf area at emergence

RelativeMaintenanceRespirationOfStorageOrgans_RMO

0

0.5

0.003

[kg CH2O kg-1 d-1]

double

Relative maintenance respiration of storage organs (RMO)

RelativeMaintenanceRespirationOfStems_RMS

0

0.5

0.015

[kg CH2O kg-1 d-1]

double

Relative maintenance respiration of stems (RMS)

RelativeMaintenanceRespirationOfRoots_RMR

0

0.5

0.01

[kg CH2O kg-1 d-1]

double

Relative maintenance respiration of roots (RMR)

RelativeMaintenanceRespirationOfLeaves_RML

0

0.5

0.02

[kg CH2O kg-1 d-1]

double

Relative maintenance respiration of leaves (RML)

RelativeIncreaseRespirationRatePer10degreeTempIncrease_Q10

0

5

2

unitless

double

Relative increase respiration rate per 10-degree temperature increase (Q10)

PhotoInsensitivity

1

24

6

hour

double

Daylenght for insensitivity to photoperiod

PhotoInhibition

1

24

14

hour

double

Daylenght to inhibit flowering

PartitioningToLeavesAtEmergence

0.4

0.9

0.7

unitless

double

Biomass partitioning to leaves at emergence

ParameterKey

0

0

0

unitless

string

Parameter key

OptimumTemperatureForGrowth

8

35

28

°C

double

Optimum temperature for growth

OptimumTemperatureDevelopment

10

35

20

°C

double

Optimum temperature for development

NumberOfInstantsInADayForWhichGrossPhotosynthesisIsEstimated

1

24

3

unitless

int

Number of instants in a day for which gross photosynthesis is estimated

MaximumTemperatureForGrowth

15

50

35

°C

double

Maximum temperature for growth

MaximumTemperatureForEmergence_TEFFMX

50

10

40

°C

double

Maximum temperature for emergence

MaximumTemperatureDevelopment

15

50

30

°C

double

Maximum temperature for development

MaximumRootingDepth_RDM

0

1000

30

cm

double

Maximum rooting depth (RDM)

MaximumRelativeIncreaseInLAI_RGRLAI

0

0.8

0.009

m2 m-2 day-1

double

Maximum relative increase in leaf area index (RGRLAI)

MaximumPlantHeight

0

300

100

cm

int

Maximum plant height

MaximumLeafCO2AssimilationRate_AMAX

25

60

40

kg ha-1 h-1

double

Maximum leaf CO2 assimilation rate

MaximumDailyIncreaseInRootingDepth_RRI

0

10

1.2

cm day-1

double

Maximum daily increase in rooting depth (RRI)

LowerThresholdTemperatureForAgingOfLeaves_TBASE

-5

18

8

°C

double

Lower threshold temperature for aging of leaves (TBASE)

LifeSpanOfLeavesGrowingAt35Celsius_SPAN

10

400

50

day

int

Life span of leaves growing at 35°C (SPAN)

LeafAreaIndexAtEmergence_LAIEM

0.01

0.2

0.1

m2 m-2

double

Leaf area index at emergence (LAIEM)

InitialTotalCropDryWeight_TDWI

0

300

50

kg ha-1

double

Initial total crop dry weight (TDWI)

GrowingDegreeDaysToReachMaturity_TSUM2

200

5000

800

°C-day

double

Temperature sum from anthesis to maturity

GrowingDegreeDaysToReachFlowering_TSUM1

200

5000

800

°C-day

double

Temperature sum from emergence to anthesis

GrowingDegreeDaysToReachEmergence_TSUMEM

10

400

100

°C-day

int

Temperature sum from sowing to emergence (TSUMEM)

ExtinctionCoefficientDiffusedLightFunctionOfDVSMaximum

0

1

0.5

unitless

double

Maximum extinction coefficient for diffuse visible light as function of DVS (KDIFTB)

EfficiencyOfConversionIntoStorageOrgans_CVO

0

1

0.684

unitless

double

Efficiency of conversion into storage organs (CVO)

EfficiencyOfConversionIntoStems_CVS

0

1

0.754

unitless

double

Efficiency of conversion into stems (CVS)

EfficiencyOfConversionIntoRoots_CVR

0

1

0.754

unitless

double

Efficiency of conversion into roots (CVR)

EfficiencyOfConversionIntoLeaves_CVL

0

1

0.754

unitless

double

Efficiency of conversion into leaves (CVL)

DevelopmentStageAtHarvest_DVSEND

0

4

2

unitless

double

Development stage at harvest

BaseTemperatureForGrowth

-10

20

12

°C

double

Base temperature for growth

BaseTemperatureForEmergence_TBASEM

-10

40

10

°C

double

Base temperature for emergence

BaseTemperatureDevelopment

-10

20

10

°C

double

Base temperature for development