Sex determination (male and female) data at ecologically relevant glucose, N, and P concentrations and stoichiometries, at both ambient and elevated levels of CO\(_2\). The term "ameristic" denotes gametophytes with only male gametangia, while the term "meristic" refers to gametophytes with female or female and male gametangia.
data("SexDeterm")A data frame with 156 observations on the following 11 variables.
CO2.Levela factor with levels Ambient Elevated CO2 levels
Blocka numeric vector, the elevated CO2 experiment was completed in 2 blocks
Glucose.Levelthe number of C atoms relative to the number of P atoms, with 5 indicating the presence of 6 micromolar glucose and 0 indicating the absence of glucose in the growth media
N.Levelthe number of N atoms relative to the number of P atoms
P.Levelthe number of P atoms relative to the number of N atoms
C.N.Pthe ratio of C to N to P atoms, a factor with levels 1:1 1:2 1:3 1:4 16:1 16:2 16:3 16:4 32:1 32:2 32:3 32:4 48:1 48:2 48:3 48:4 5:1:1 5:1:2 5:1:3 5:1:4 5:16:1 5:16:2 5:16:3 5:16:4 5:32:1 5:32:2 5:32:3 5:32:4 5:48:1 5:48:2 5:48:3 5:48:4
Total.Gametophyte.No.the total number of gametophytes in each population
No..of.Ameristic.Gametophytesthe number of ameristic (male) gametophytes in each gametophyte population
No..of.Meristic.Gametophytesthe number of meristic (female and hermaphrodite) gametophytes in each gametophyte population
Ameristic.Meristic.Ratiothe ratio of ameristic gametophytes to meristic gametophytes (sex ratio)
Pct..Ameristic.Gametophytesthe percentage of ameristic gametophytes per total gametophyte population
Goodnoe, T. T., Hill, J. P., Aho, K. (2016) Effects of variation in carbon, nitrogen and phosphorous molarity and stoichiometry on sex determination in the fern Ceratopteris richardii. Botany 94(4): 249-259.