Fig. 6From: Effect of Triton X-100 on the wheat and lettuce growth and contaminant absorptionEffect of Triton X-100 on the chlorophyll and carotenoid concentrations of Lactuca sativa (lettuce). The small letters indicate the significance differences at the confidence level of 0.05. The error bars indicate average and standard deviations of the chlorophyll and carotenoid concentrations of four lettuce seedlingsBack to article page