Figure 4.
Effect of increasing the number of replicate data samples on the variability of the decrease in Fv/Fm for Arabidopsis plants after 6 h of treatment with 0.8 mm Imazapyr. Data from eight replicates of untreated plants (control) are shown, together with data from eight, 16, 32, and 64 replicates of treated plants. ses of the means are given. After 6 h, data from eight replicate plants were not significantly different to the controls; data from 16, 32, and 64 replicate plants were similar with significant differences at P < 0.01.