Herbicide phytotoxicity dataset from Jones & Kerswell (2003).
An object of class data.frame with 580 rows and 3 columns.
The response data (Fv/Fm) Chlorophyll fluorescence measurements of symbiotic dinoflagellates still in the host tissue of the coral (in hospite or in vivo) were measured using a DIVING-PAM chlorophyll fluorometer (Walz) on vertical planes of tissue 2 to 3 cm above the base of the corals, using either a 6 mm (Acropora formosa) or 2 mm (Seriatopora hystrix) fibre-optic probe. Parameters measured were the maximum potential quantum yield (Fv/Fm).
Additional information on each of the herbicides included is available from the original publication Jones & Kerswell (2003).
The columns are as follows:
The herbicide (chr).
The treatment concentration in µg / L (dbl).
Maximum effective quantum yield (dbl).
Jones RJ, Kerswell AP (2003) Phytotoxicity of Photosystem II (PSII) herbicides to coral. Marine Ecology Progress Series, 261: 149-159. doi: 10.3354/meps261149.
head(herbicide)
#> herbicide concentration fvfm
#> 1 irgarol 0.1 0.63
#> 2 diuron 0.1 0.68
#> 3 ametryn 0.1 0.68
#> 4 tebuthiuron 0.1 0.73
#> 5 hexazinone 0.1 0.64
#> 6 simazine 0.1 0.69