Green walls can improve indoor air-quality by reducing concentrations of carbon dioxide(CO_(2))and other air pollutants.Our study focused on the spider plant,Chlorophytum comosum,and devil’s ivy,Epipremnum aureum,bot...Green walls can improve indoor air-quality by reducing concentrations of carbon dioxide(CO_(2))and other air pollutants.Our study focused on the spider plant,Chlorophytum comosum,and devil’s ivy,Epipremnum aureum,both common green-wall plants that have been found to be efficient CO_(2) absorbers.Both species have multiple variants with varying degrees of leaf green-white segmentation.Since pho-tosynthesis depends on the concentration of leaf chlorophylls,we hypothesized that green variants are more efficient carbon absorbers than green-white variants.In addi-tion,we tested the hypothesis that the photosynthetic rate of plants is affected by pot volume,as suggested by previous studies.We used a portable gas exchange system to determine the rate of photosynthesis of the study plants.No evidence was found for better photosynthetic performance in the green vs.green-white variants of each species.In fact,our results suggest the opposite.It was observed that a spider plants assimilated carbon more efficiently when grown in a larger pot volume.In conclusion,our study shows that in terms of carbon assimilation,green-white variants of spider plants are the better choice for indoor green walls.Their efficiency can be improved dramatically by increasing pot volume.展开更多
文摘Green walls can improve indoor air-quality by reducing concentrations of carbon dioxide(CO_(2))and other air pollutants.Our study focused on the spider plant,Chlorophytum comosum,and devil’s ivy,Epipremnum aureum,both common green-wall plants that have been found to be efficient CO_(2) absorbers.Both species have multiple variants with varying degrees of leaf green-white segmentation.Since pho-tosynthesis depends on the concentration of leaf chlorophylls,we hypothesized that green variants are more efficient carbon absorbers than green-white variants.In addi-tion,we tested the hypothesis that the photosynthetic rate of plants is affected by pot volume,as suggested by previous studies.We used a portable gas exchange system to determine the rate of photosynthesis of the study plants.No evidence was found for better photosynthetic performance in the green vs.green-white variants of each species.In fact,our results suggest the opposite.It was observed that a spider plants assimilated carbon more efficiently when grown in a larger pot volume.In conclusion,our study shows that in terms of carbon assimilation,green-white variants of spider plants are the better choice for indoor green walls.Their efficiency can be improved dramatically by increasing pot volume.
