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2
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Plant Photosynthesis (Net CO2 Exchange Rate) Responses
to Atmospheric CO
2
Enrichment
W
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
Walnut, Black [
Juglans nigra
]
1
24%
0%
1
55%
0%
Water Hyacinth, Common [
Eichhornia crassipes
]
1
44%
0%
Water Lily [
Nymphaea marliac
]
3
39.7%
12.4%
Wedelia chinensis
[Herb, Perennial]
2
45.5%
6.7%
Wedelia trilobata
[Creeping Daisy]
2
74%
1.4%
Weed, Annual, C
4
[
Eragrostis orcuttiana
]
1
-44%
0%
Wheat [
Triticum aestivum
]
92
67.6%
10%
4
79.8%
32.1%
Wheat, Durum [
Triticum durum
]
2
59%
25.5%
Wheat, Common [
Triticum aestivum
]
92
67.6%
10%
4
79.8%
32.1%
Wheatgrass, Western [
Agropyron smithii
]
2
-4.5%
6%
Wheatgrass, Western [
Pascopyrum smithii
]
6
61.2%
14.9%
White Cattail [
Typha x glauca
]
1
0%
0%
White Mangrove [
Avicennia marina
]
2
44%
0%
White Spruce [
Picea glauca
]
1
197%
0%
White Teak [
Gmelina arborea
]
1
114%
0%
Whiteflower Kurrajong [
Brachychiton populneum
]
1
75%
0%
1
150%
0%
Whortleberry [
Vaccinium myrtillus
]
2
47%
9.2%
Wild Mustard [
Sinapis arvensis
]
2
20%
3.5%
1
12%
0%
Wild Spikenard [
Hyptis suaveolens
]
1
88%
0%
Willow [
Salix jiangsuensis
]
5
49.4%
8.9%
Withania somnifera
[Indian Ginseng]
2
61.5%
2.5%
Woodland Sage [
Salvia nemorosa
]
2
277.5%
136.1%
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