| Title: | Plant Stress Response Index Calculator |
|---|---|
| Description: | Calculate Plant Stress Response Index (PSRI) from time-series germination data with optional radicle vigor integration. Built on the methodological foundation of the Osmotic Stress Response Index (OSRI) framework developed by Walne et al. (2020) <doi:10.1002/agg2.20087>. Provides clean, direct PSRI calculations suitable for agricultural research and statistical analysis. Note: This package implements methodology currently under peer review. Please contact the author before publication using this approach. |
| Authors: | Richard Feiss [aut, cre], University of Minnesota [cph] |
| Maintainer: | Richard Feiss <[email protected]> |
| License: | MIT + file LICENSE |
| Version: | 1.0.0 |
| Built: | 2026-05-15 06:59:06 UTC |
| Source: | https://github.com/rfeissiv/psricalc |
This function calculates the Plant Stress Response Index from time-series germination data with optional radicle vigor integration.
calculate_psri( germination_counts, time_points = c(3, 5, 7), total_seeds, species, radicle_summary = NULL, diseased_counts = NULL )calculate_psri( germination_counts, time_points = c(3, 5, 7), total_seeds, species, radicle_summary = NULL, diseased_counts = NULL )
germination_counts |
Numeric vector of cumulative germination counts at each time point (length 3 for days 3, 5, 7) |
time_points |
Numeric vector of time points in days (default: c(3, 5, 7)) |
total_seeds |
Integer, total number of seeds in the replicate |
species |
Character string, species name for identification |
radicle_summary |
Optional list containing radicle data |
diseased_counts |
Optional numeric vector of diseased seed counts |
A list containing PSRI components and metrics
Walne, C.H., Gaudin, A., Henry, W.B., and Reddy, K.R. (2020). In vitro seed germination response of corn hybrids to osmotic stress conditions. Agrosystems, Geosciences & Environment, 3(1), e20087. doi:10.1002/agg2.20087
result <- calculate_psri( germination_counts = c(5, 8, 10), time_points = c(3, 5, 7), total_seeds = 15, species = 'corn' ) print(result$PSRI)result <- calculate_psri( germination_counts = c(5, 8, 10), time_points = c(3, 5, 7), total_seeds = 15, species = 'corn' ) print(result$PSRI)
Calculate Plant Stress Response Index (PSRI) from germination data
The package provides clean, direct PSRI calculation methodology
Maintainer: Richard Feiss [email protected]
Other contributors:
University of Minnesota [copyright holder]