CO2 Science

Plant Dry Weight (Biomass) Responses to Atmospheric CO2 Enrichment
Y

	300 ppm			600 ppm			900 ppm
Plant Name	Number of Studies	Arithmetic Mean	Standard Error	Number of Studies	Arithmetic Mean	Standard Error	Number of Studies	Arithmetic Mean	Standard Error
Yarrow [Achillea millefolium]	3	24.7%	12.6%
Yellow Lantern Chili [Capsicum chinense]	1	49%	0%				1	168%	0%
Yellow Pitaya [Selenicereus megalanthus]				1	66%	0%
Yellow Star Thistle [Centaurea solstitialis]	1	500%	0%
Yellow Bristle Grass [Setaria glauca]	1	16%	0%
Yellowrattle, European [Rhinanthus alectorolophus]	2	75%	68.6%
Yellow Rattle [Rhinanthus minor]	1	50%	0%
Yellowtops, Clustered [Flaveria trinervia]	1	46%	0%
Yucca brevifolia [Joshua Tree]	1	65%	0%
Yucca, Chaparral [Yucca whipplei]	1	13%	0%
Yucca, Mojave [Yucca schidigera]	1	86%	0%
Yucca schidigera [Mojave Yucca]	1	86%	0%
Yucca whipplei [Chaparral Yucca]	1	13%	0%