| |
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 |
| Pachysandra terminalis [Japanese Spurge] |
1 | 70% | 0% |
| | |
| | |
| Paederia scandens [Chinese Fever Vine] |
1 | 3% | 0% |
| | |
| | |
| Paeonia lactiflora [Peony] |
1 | 50% | 0% |
| | |
| | |
| Painted Spurge [Euphorbia geniculata] |
1 | 31% | 0% |
| | |
| | |
| Panicgrass, Blue [Panicum antidotale] |
2 | -2.5% | 4.6% |
| | |
| | |
| Panicgrass, Fall [Panicum dichotomiflorum] |
1 | 18% | 0% |
| | |
| | |
| Panicgrass, Lax [Panicum laxum] |
2 | 8.5% | 5.3% |
| | |
| | |
| Panicum antidotale [Blue Panicgrass] |
2 | -2.5% | 4.6% |
| | |
| | |
| Panicum dichotomiflorum [Fall Panicgrass] |
1 | 18% | 0% |
| | |
| | |
| Panicum laxum [Lax Panicgrass] |
2 | 8.5% | 5.3% |
| | |
| | |
| Panicum maximum [Guineagrass] |
2 | 16% | 3.5% |
| | |
| | |
| Panicum miliaceum [Broomcorn Millet] |
2 | 12% | 2.1% |
| | |
| | |
| Panicum virgatum [Switchgrass] |
1 | 64% | 0% |
| | |
| | |
| Papaya [Carica papaya] |
| | |
| | |
| | |
| Paris polyphylla [Multi-leaf Paris] |
2 | 108.5% | 18% |
| | |
| | |
| Parmelia caperata [Foliose Lichen] |
1 | 16% | 0% |
1 | 27% | 0% |
| | |
| Parmelia kurokawae [Foliose Lichen] |
1 | 30% | 0% |
1 | 43% | 0% |
| | |
| Parmelia praesignis [Flavopunctelia Lichen] |
1 | 60% | 0% |
1 | 87% | 0% |
| | |
| Parmelia reticulata [Netted Rimelia Lichen] |
1 | 63% | 0% |
1 | 100% | 0% |
| | |
| Pascopyrum smithii [Western Wheatgrass] |
6 | 61.2% | 14.9% |
| | |
| | |
| Paspalum dilatatum [Dallas Grass] |
4 | 80.8% | 18.4% |
| | |
| | |
| Paspalum notatum [Bahiagrass] |
1 | 24% | 0% |
| | |
| | |
| Pea, Blackeyed [Vigna unguiculata] |
5 | 65.6% | 14.9% |
| | |
| | |
| Peach [Prunus persica] |
4 | 37.5% | 8.7% |
| | |
| | |
| Pea, Garden [Pisum sativum] |
7 | 42.3% | 3.5% |
5 | 60.2% | 23.8% |
1 | 56% | 0% |
| Peanut [Arachis hypogaea] |
7 | 44.3% | 8.6% |
| | |
1 | -27% | 0% |
| Peanut, Rhizoma |
1 | 40% | 0% |
| | |
| | |
| Pei Lan [Eupatorium japonicum] |
4 | 21.5% | 6.8% |
| | |
| | |
| Pelargonium [Pelargonium x hortorum] |
3 | 19.3% | 8.8% |
3 | 89.7% | 63.4% |
| | |
| Pelargonium x hortorum [Pelargonium] |
3 | 19.3% | 8.8% |
3 | 89.7% | 63.4% |
| | |
| Peltigera canina [Felt Lichen] |
1 | 24% | 0% |
1 | 40% | 0% |
| | |
| Peltigera membranacea [Membraneous Felt Lichen] |
1 | 83% | 0% |
1 | 175% | 0% |
1 | 250% | 0% |
| Peltigera polydactyla [Foliose Lichen] |
1 | 83% | 0% |
1 | 175% | 0% |
1 | 250% | 0% |
| Peltigera rufescens [Felt Lichen] |
1 | 83% | 0% |
1 | 175% | 0% |
1 | 250% | 0% |
| Pelvetia canaliculata [Channelled Wrack] |
1 | 57% | 0% |
| | |
| | |
| Pencil Flower [Stylosanthes hamata] |
1 | 44% | 0% |
| | |
| | |
| Peony [Paeonia lactiflora] |
1 | 50% | 0% |
| | |
| | |
| Pepino [Solanum muricatum] |
2 | 74% | 7.1% |
2 | 70% | 5.7% |
| | |
| Pepper [Unknown name] |
4 | 60.3% | 5.8% |
2 | 103% | 11.3% |
| | |
| Pepper, Bell [Capsicum annuum] |
14 | 28.9% | 4.9% |
3 | 295.7% | 77.8% |
9 | 202.2% | 62.8% |
| Pepper, Jamaican [Piper hispidum] |
2 | 77.5% | 15.9% |
| | |
| | |
| Peppermint [Mentha piperita] |
1 | 82% | 0% |
| | |
| | |
| Pepper, Vera Cruz [Piper auritum] |
2 | 67.5% | 5.3% |
| | |
| | |
| Perennial Herb [Sedum alfredii] |
3 | 66% | 11.7% |
| | |
| | |
| Petalostemum villosum [Silky Prairie Clover] |
1 | 32% | 0% |
| | |
| | |
| Petunia [Petunia xhybrida] |
| | |
4 | 31.5% | 4.6% |
| | |
| Petunia xhybrida [Petunia] |
| | |
4 | 31.5% | 4.6% |
| | |
| Phalaenopsis [Orchid] |
8 | 151.4% | 37.8% |
| | |
2 | 93% | 0.7% |
| Phalaris arundinacea [Canary Grass] |
32 | 29.6% | 2% |
| | |
| | |
| Phalaris aquatica [Harding Grass] |
2 | 39.5% | 17.3% |
| | |
| | |
| Phaseolus lunata [Lima Bean] |
| | |
2 | 9% | 5.7% |
| | |
| Phaseolus vulgaris [Garden Bean] |
24 | 55.8% | 10.3% |
4 | 158.3% | 18.8% |
2 | -9.5% | 6.7% |
| Phillyrea angustifolia [False Olive] |
2 | 75% | 10.6% |
| | |
| | |
| Phleum pratense [Timothy] |
3 | 30.3% | 3.2% |
| | |
| | |
| Phyllanthus emblica [Emblic] |
2 | 71% | 21.9% |
| | |
| | |
| Phytolacca americana [American Pokeweed] |
1 | 56% | 0% |
| | |
| | |
| Picea glauca [White spruce] |
1 | 197% | 0% |
| | |
| | |
| Picea abies [Norway Spruce] |
16 | 52.6% | 5.8% |
| | |
| | |
| Picea koraiensis [Spruce] |
1 | 73% | 0% |
| | |
| | |
| Picea mariana [Black Spruce] |
5 | 33.6% | 9.2% |
| | |
| | |
| Picea sitchensis [Sitka Spruce] |
2 | 23% | 4.2% |
| | |
| | |
| Pigeonpea [Cajanus cajan] |
3 | 115% | 25.5% |
| | |
| | |
| Pimpernel, Scarlet [Anagallis arvensis] |
1 | 45% | 0% |
| | |
| | |
| Pine, Swiss Mountain [Pinus mugo] |
1 | 54% | 0% |
| | |
| | |
| Pineapple [Ananas comosus] |
3 | 168.3% | 55.8% |
| | |
| | |
| Pineapple Guava [Feijoas sellowiana] |
1 | 55% | 0% |
| | |
| | |
| Pine, Eldarica [Pinus eldarica] |
2 | 133% | 0% |
2 | 258.5% | 6% |
2 | 357.5% | 30.1% |
| Pine, Jack [Pinus baksiana] |
4 | 34.8% | 6.2% |
| | |
| | |
| Pine, Japonese Red [Pinus densiflora] |
5 | 26.4% | 8% |
| | |
| | |
| Pine, Korean [Pinus koraiensis] |
3 | 58.3% | 9.7% |
| | |
| | |
| Pine, Loblolly [Pinus taeda] |
48 | 87.6% | 9.8% |
5 | 230.4% | 96% |
| | |
| Pine, Longleaf |
1 | 41% | 0% |
| | |
| | |
| Pine, Merkus [Pinus merkusii] |
2 | 44.5% | 3.2% |
| | |
| | |
| Pine, Mexican Yellow [Pinus patula] |
1 | 47% | 0% |
| | |
| | |
| Pine, Monterey [Pinus radiata] |
13 | 40.2% | 3.8% |
| | |
| | |
| Pine, Mountain [Pinus uncinata] |
2 | 44% | 7.1% |
| | |
| | |
| Pine, Ponderosa [Pinus ponderosa] |
10 | 45.9% | 8.8% |
| | |
| | |
| Pine, Scots [Pinus sylvestris] |
22 | 70.1% | 25.2% |
| | |
| | |
| Pinus mugo [Pine, Swiss Mountain] |
1 | 54% | 0% |
| | |
| | |
| Pinus tabulaeformis [Chinese Red Pine] |
4 | 59% | 7.7% |
| | |
| | |
| Pinus banksiana [Pine, Jack] |
4 | 34.8% | 6.2% |
| | |
| | |
| Pinus densiflora [Pine, Japonese Red] |
5 | 26.4% | 8% |
| | |
| | |
| Pinus eldarica [Pine, Eldarica] |
2 | 133% | 0% |
2 | 258.5% | 6% |
2 | 357.5% | 30.1% |
| Pinus koraiensis [Pine, Korean] |
3 | 58.3% | 9.7% |
| | |
| | |
| Pinus merkusii [Pine, Merkus] |
2 | 44.5% | 3.2% |
| | |
| | |
| Pinus patula [Mexican Yellow Pine] |
1 | 47% | 0% |
| | |
| | |
| Pinus ponderosa [Ponderosa Pine] |
10 | 45.9% | 8.8% |
| | |
| | |
| Pinus radiata [Monterey Pine] |
13 | 40.2% | 3.8% |
| | |
| | |
| Pinus sylvestris [Scots Pine] |
22 | 70.1% | 25.2% |
| | |
| | |
| Pinus taeda [Loblolly Pine] |
48 | 87.6% | 9.8% |
5 | 230.4% | 96% |
| | |
| Pinus uncinata [Mountain Pine] |
2 | 44% | 7.1% |
| | |
| | |
| Pioneer Tropical Tree [Nauclea diderrichii] |
3 | 69.7% | 2.2% |
| | |
| | |
| Piper auritum [Vera Cruz Pepper] |
2 | 67.5% | 5.3% |
| | |
| | |
| Piper hispidum [Jamaican Pepper] |
2 | 77.5% | 15.9% |
| | |
| | |
| Pipeweed, Native American [Eriogonum inflatum] |
2 | 42.5% | 15.9% |
| | |
| | |
| Pisum sativum [Garden Pea] |
7 | 42.3% | 3.5% |
5 | 60.2% | 23.8% |
1 | 56% | 0% |
| Plantago asiatica [Plantago Asiatica] |
2 | 38% | 4.9% |
| | |
| | |
| Plantago erecta [Dwarf Plantain] |
1 | 43% | 0% |
| | |
| | |
| Plantago lanceolata [Narrowleaf Plantain] |
7 | 67.6% | 21.3% |
| | |
| | |
| Plantago maritima [Sea Plantain] |
1 | -30% | 0% |
| | |
| | |
| Plantain, Dwarf [Plantago erecta] |
1 | 43% | 0% |
| | |
| | |
| Plantain, Narrowleaf [Plantago lanceolata] |
7 | 67.6% | 21.3% |
| | |
| | |
| Plantain, Sea [Plantago maritima] |
1 | -30% | 0% |
| | |
| | |
| Platanus occidentalis [American Sycamore] |
1 | 60% | 0% |
| | |
| | |
| Poa annua [Annual Bluegrass] |
6 | 62% | 14% |
| | |
| | |
| Poa cookii [Bluegrass] |
1 | 55% | 0% |
| | |
| | |
| Poa pratensis [Kentucky Bluegrass] |
9 | 131.6% | 30.5% |
| | |
| | |
| Poa trivialis [Rough Bluegrass] |
1 | 41% | 0% |
| | |
| | |
| Poison Ivy [Toxicodendron radicans] |
1 | 116% | 0% |
| | |
| | |
| Polygonum cuspidatum [Japanese Knotweed] |
3 | 32.7% | 3.5% |
| | |
| | |
| Polygonum sachalinense [Giant Knotweed] |
5 | 46.6% | 8.3% |
| | |
| | |
| Polygoum persicaria [Spotted Ladysthumb] |
2 | -2.5% | 1.8% |
| | |
| | |
| Po'ola [Claoxylon sandwicense] |
3 | 100% | 12.5% |
1 | 130% | 0% |
| | |
| Poplar, Black [Populus nigra] |
6 | 73.2% | 18.3% |
| | |
| | |
| Poplar, Hybrid [Populus trichocarpa x populus deltoides] |
2 | 37.5% | 8.8% |
| | |
| | |
| Poplar, Robusta [Populus euramericana] |
28 | 74.5% | 13.2% |
| | |
| | |
| Poplar, White [Populus alba] |
6 | 79.8% | 16.4% |
| | |
| | |
| Poplar, Yellow [Liriodendron tulipifera] |
15 | 69.7% | 13.6% |
| | |
| | |
| Populus tremula x alba [Hybrid Poplar] |
1 | 23% | 0% |
| | |
| | |
| Populus tremula x populus tremuloides [Hybrid Aspen] |
1 | 113% | 0% |
| | |
| | |
| Populus alba [White Poplar] |
6 | 79.8% | 16.4% |
| | |
| | |
| Populus cathayanna [Poplar] |
9 | 24.6% | 4.4% |
| | |
| | |
| Populus deltoides [Eastern Cottonwood] |
9 | 32.6% | 6.6% |
| | |
7 | 121.6% | 20.4% |
| Populus euramericana [Robusta Poplar] |
28 | 74.5% | 13.2% |
| | |
| | |
| Populus fremontii [Fremont's Cottonwood] |
3 | 30.7% | 15.9% |
| | |
| | |
| Populus grandidentata [Bigtooth Aspen] |
3 | 181.7% | 60.7% |
| | |
| | |
| Populus nigra [Black Poplar] |
6 | 73.2% | 18.3% |
| | |
| | |
| Populus tremula x Populus tremula [Hybrid Aspen] |
3 | 28.7% | 3.3% |
| | |
| | |
| Populus tremuloides [Quaking Aspen] |
54 | 80.3% | 10.7% |
| | |
| | |
| Populus trichocarpa x populus deltoides [Hybrid Poplar] |
2 | 37.5% | 8.8% |
| | |
| | |
| Potamogeton crispus [Curly Pondweed] |
| | |
4 | 112.3% | 65.3% |
| | |
| Potato, Sweet [Ipomoea batatas] |
7 | 35.6% | 8.1% |
| | |
| | |
| Potato, White [Solanum tuberosum] |
33 | 50.3% | 7.5% |
2 | 2.5% | 1.1% |
| | |
| Potentilla crantzii [Alpine Cinquefoil] |
1 | 25% | 0% |
| | |
| | |
| Prickly Pear [Opuntia ficus-indica] |
7 | 26.7% | 4.3% |
| | |
| | |
| Prochlorococcus [Marine Picocyanobacterium] |
2 | 5.5% | 2.5% |
| | |
| | |
| Protoceratium reticulatum [Dinoflagellate] |
| | |
1 | 41% | 0% |
| | |
| Prunus armeniaca [Apricot] |
4 | 62.8% | 4.2% |
4 | 97.5% | 9.7% |
| | |
| Prunus avium [Sweet Cherry] |
13 | 173.3% | 37.9% |
| | |
| | |
| Prunus persica [Peach] |
4 | 37.5% | 8.7% |
| | |
| | |
| Prunus serotina [Black Cherry] |
3 | 63.7% | 5.7% |
| | |
| | |
| Pseudobombax septenatum [Tropical Tree] |
1 | 68% | 0% |
| | |
| | |
| Pseudopanax arboreus [Puahou] |
1 | 69% | 0% |
| | |
| | |
| Pseudotsuga menziesii [Douglas Fir] |
17 | 32% | 5.3% |
2 | 92.5% | 5.3% |
2 | 118.5% | 4.6% |
| Psychotria limonensis [Forest Shrub] |
1 | 65% | 0% |
| | |
| | |
| Pteridium aquilinum [Bracken] |
8 | 93.8% | 7.3% |
| | |
| | |
| Puahou [Pseudopanax arboreus] |
1 | 69% | 0% |
| | |
| | |
| Puccinellia maritima [Seaside Alkaligrass] |
5 | 84% | 17.8% |
| | |
| | |
| Purging Nut [Jatropha curcas] |
4 | 60.8% | 10.9% |
| | |
| | |
| Pyrenean Oak [Quercus pyrenaica] |
2 | 38% | 6.4% |
| | |
| | |
| Pyropia haitanensis [Red Seaweed] |
1 | 29% | 0% |
| | |
| | |
| Pyrrosia piloselloides [Tropical Fern] |
1 | 19% | 0% |
| | |
| | |
| Pyrus pyrifolia [Asian Pear] |
4 | 64.5% | 8.5% |
| | |
2 | 131.5% | 11% |
