McCree's action spectra for whole-leaf photosynthesis.

The 'classical' action spectra of K. J. McCree (1972) for Amaranthus edulis Speg. var. UCD 1966 and Avena sativa L. var. Coronado are included in this data set. Response is net \(CO_2\) uptake measured on leaf sections umder monochromatic light. The light source used was a xenon-arc lamp fitted with a monochromator. Irradiance was in the range 10 to 15 \(W m^{-2}\).

Format

A response_mspct object with two member response_spct objects each with 300 rows and 2 numeric variables, w.length and s.e.response.

Note

Digitised from bitmap of from the original publication.

If you use these data in a publication, please cite also the original source as given under references.

References

McCree, K. J. (1972) Significance of Enhancement for Calculations Based on the Action Spectrum for Photosynthesis. Plant Physiology, 49, 704-706. Fig. 1, AMARANTH.

Examples

summary(McCree_photosynthesis.mspct)
#> Summary of response_mspct [2 x 1] object: McCree_photosynthesis.mspct
#> # A tibble: 2 × 7
#>   spct.idx class         dim      w.length.min w.length.max colnames multiple.wl
#>   <chr>    <chr>         <chr>           <dbl>        <dbl> <list>         <dbl>
#> 1 amaranth response_spct [110 x …         359.         753. <chr>              1
#> 2 oats     response_spct [108 x …         361.         754. <chr>              1