germinationmetrics: Seed Germination Indices and Curve Fitting logo

Aravind, J., Vimala Devi, S., Radhamani, J., Jacob, S. R., and Kalyani Srinivasan

ICAR-National Bureau of Plant Genetic Resources, New Delhi

minimal R version License: GPL v3 CRAN_Status_Badge Dependencies rstudio mirror downloads develVersion Github Code Size R-CMD-check Project Status: Active lifecycle Last-changedate Zenodo DOI Website - pkgdown .


Provides functions to compute various germination indices such as germinability, median germination time, mean germination time, mean germination rate, speed of germination, Timson’s index, germination value, coefficient of uniformity of germination, uncertainty of germination process, synchrony of germination etc. from germination count data. Includes functions for fitting cumulative seed germination curves using four-parameter hill function and computation of associated parameters. See the vignette for more, including full list of citations for the methods implemented.


The package can be installed from CRAN as follows:

if (!require('devtools')) install.packages('devtools')
install.packages('germinationmetrics', dependencies=TRUE)

The development version can be installed from github as follows:


Detailed tutorial

For a detailed tutorial (vignette) on how to used this package type:

browseVignettes(package = 'germinationmetrics')

The vignette for the latest version is also available online.

What’s new

To know whats new in this version type:


CRAN page

Github page

Documentation website

Zenodo DOI

CRAN checks


r-devel-linux-x86_64-debian-clang CRAN check - r-devel-linux-x86_64-debian-clang
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r-oldrel-macos-x86_64 CRAN check - r-oldrel-macos-x86_64

Citing germinationmetrics

To cite the methods in the package use:

To cite the R package 'germinationmetrics' in publications use:

  Aravind, J., Vimala Devi, S., Radhamani, J., Jacob, S. R., and Kalyani Srinivasan ().  germinationmetrics: Seed Germination Indices and
  Curve Fitting. R package version 0.1.8,

A BibTeX entry for LaTeX users is

    title = {germinationmetrics: Seed Germination Indices and Curve Fitting},
    author = {J. Aravind and S. {Vimala Devi} and J. Radhamani and Sherry Rachel Jacob and {Kalyani Srinivasan}},
    note = {R package version 0.1.8},

This free and open-source software implements academic research by the authors and co-workers. If you use it, please support the project
by citing the package.