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Single-value germination indices

GermPercent() PeakGermPercent()
Germination percentage
FirstGermTime() LastGermTime() PeakGermTime() TimeSpreadGerm()
Time for first, last and peak germination
t50()
Median germination time
MeanGermTime() VarGermTime() SEGermTime() CVGermTime()
Germination time
MeanGermRate() CVG() VarGermRate() SEGermRate() GermRateRecip()
Germination rate
GermSpeed() GermSpeedAccumulated() GermSpeedCorrected()
Speed of germination
WeightGermPercent()
Weighted germination percentage
MeanGermPercent() MeanGermNumber()
Mean germination percentage and number of seeds per time interval
TimsonsIndex() GermRateGeorge()
Timson's index
GermIndex()
Germination Index
EmergenceRateIndex()
Emergence Rate Index or Germination Rate Index
PeakValue() GermValue()
Peak value and germination value
CUGerm()
Coefficient of uniformity of germination
GermSynchrony() GermUncertainty()
Synchrony and uncertainty of germination

Non-linear regression analysis

FourPHF() FourPHF_fixa() FourPHF_fixy0() FourPHF_fixa_fixy0() RateofGerm()
Four paramter hill function
FourPHFfit()
Fit four-parameter hill function
plot(<FourPHFfit>)
Plot the four-parameter hill function fitted cumulative germination curve from a FourPHFfit object

Wrapper

germination.indices()
Germination Indices
FourPHFfit.bulk()
Fit four-parameter hill function for multiple samples
plot(<FourPHFfit.bulk>)
Plot the multiple four-parameter hill function fitted cumulative germination curves from a FourPHFfit.bulk object

Data

gcdata
Germination count data