Response of yellow-poplar (Liriodendron tulipifera L.) seedlings to simulated acid rain and ozone—1. Growth modifications

Jensen, Keith F.; Patton, Roy L.

doi:10.1016/0098-8472(90)90009-s

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…Previous studies report few negative O 3 effects on the growth and physiology of yellow-poplar seedlings (Cannon et al 1993;Chappelka et al 1988;Roberts 1990;Tjoelker and Luxmoore 1992), while others report growth stimulations associated with exposure to O 3 (Jensen and Patton 1990;Kress and Skelly 1982). In addition to the limited growth effects, we observed very little visible foliar injury and leaf senescence associated with elevated O 3 .…”

Section: Figcontrasting

confidence: 40%

“…Most of the previous work on the growth and physiological response of seedling yellow-poplar exposed to elevated O 3 has been short-term studies (6 to 20 weeks in duration with exposures ranging from 0 to 200 ppb O 3 ; 4 to 8 h daily; 3 to 7 days per week), conducted in controlled environments (e.g., growth chambers, continuously stirred tank reactors, or greenhouses), and reported few significant O 3 effects (Cannon et al 1993;Chappelka et al 1988;Jensen and Patton 1990;Roberts 1990). Chappelka et al(1988) reported that P n was reduced 10% in seedlings exposed to 150 ppb O 3 (p = 0.13), and g s was reduced in leaves of seedlings exposed to 100 ppb O 3 (p = 0.01) compared with control plants, but without significant growth or biomass effects.…”

Section: Figmentioning

confidence: 99%

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Ozone effects on seedling sugar maple (Acer saccharum) and yellow-poplar (Liriodendron tulipifera): gas exchange

Rebbeck¹,

Loats²

1997

Can. J. For. Res.

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The effects of one to two seasons of ozone (O 3 ) exposure ranging from subambient to 1.7 times ambient on the gas exchange of sugar maple (Acer saccharum Marsh.) and yellow-poplar (Liriodendron tulipifera L.) were studied in standard 3 m diameter open-top chambers. Cumulative O 3 exposures based on SUM00 index ranged from 16 to 107 ppm⋅h in 1990 and 31 to 197 ppm⋅h in 1991. During the 120-day exposure in 1990, rates of net photosynthesis and stomatal conductance of sugar maple foliage were not affected by O 3 . Based on estimates from light-response curves, net photosynthesis at saturating light, dark respiration, compensation irradiance, and quantum efficiency were not affected in sugar maple leaves exposed to elevated O 3 . Gas exchange rates of leaves of yellow-poplar grown in elevated O 3 were significantly reduced in 1990 and 1991, when compared with foliage of seedlings grown in charcoal-filtered air (CF air). In 1990, seasonal monthly net photosynthesis of yellow-poplar leaves was reduced 11.7% in 1.5 times ambient O 3 air compared with leaves of seedlings grown in CF air. The light response of yellow-poplar foliage generally was not affected by exposure to O 3 during either growing season; with the exception in 1991 of net photosynthesis at saturating light being reduced 13 to 42% in leaves of seedlings exposed to 1.7 times ambient O 3 air compared with leaves of seedlings grown in CF air. Stomatal conductance rates were generally not affected by exposure to O 3 during either exposure season. In 1991, the response of newly mature (node 3 to 5 from apex) and older leaves (node 8 to 12 from apex) of ozone-exposed yellow-poplar were compared and responded similarly to elevated O 3 . Ozone effects on seasonal diurnal photosynthetic response of newly mature and older yellow-poplar foliage were observed in 1991. Reductions (21-42%) in net photosynthetic rates of leaves of yellow-poplar exposed to elevated O 3 were first observed after 42 days of treatment (113 ppm⋅h exposure). Predawn and post-sunset respiration and stomatal conductance were not affected by exposure to elevated O 3 . Despite significant reductions of net photosynthesis of O 3 -exposed yellow-poplar during both seasons, significant negative growth effects were not observed until the final harvest in June 1992. Root/shoot ratios of yellow-poplar seedlings exposed to 1.7 times ambient O 3 were reduced 30% compared with those seedlings exposed to CF air.

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Section: Figcontrasting

confidence: 40%

Section: Figmentioning

confidence: 99%

Ozone effects on seedling sugar maple (Acer saccharum) and yellow-poplar (Liriodendron tulipifera): gas exchange

Rebbeck¹,

Loats²

1997

Can. J. For. Res.

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“…In the current study, we investigated how field‐planted yellow‐poplar( Liriodendron tulipifera L.) seedlings grown under less thanoptimal conditions (unmanipulated soil moisture and fertility) respondedto chronic levels of elevated O 3 either alone or combinedwith elevated CO 2 over five seasons. The effects of elevatedO 3 on yellow‐poplar, an ecologically and economicallyimportant hardwood species in eastern USA forests, have been wellstudied in potted seedlings under environmentally controlled conditions showingboth inhibitions and stimulations in growth and physiological processes(Chappelka, Chevone & Seiler 1988; Jensen & Patton 1990; Roberts1990; Cannon, Roberts & Bargar 1993; Rebbeck & Loats 1997; Loats& Rebbeck 1999). Long considered an O 3 ‐sensitivespecies, yellow‐poplar is used as a bioindicator of O 3 ineastern US forests (Davis & Skelly 1992).…”

Section: Introductionmentioning

confidence: 99%

Growth responses of yellow‐poplar(Liriodendron tulipifera L.) exposed to 5 years of O₃ aloneor combined with elevated CO₂

Rebbeck

Scherzer

2002

Plant Cell & Environment

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¥ O 3 + CO 2 had a stimulatory effect on yearly basal area growth increment after two seasons, significant increases in shoot and root biomass ( ~ 60% increase relative to all others) were not detected until the fifth season. After five seasons, the yearly basal area growth increment of saplings exposed to 1·5 ¥ ¥ ¥ ¥ O 3 + CO 2 -air increased by 41% relative to all others. Based on this multiyear study, it appears that chronic O 3 effects on yellowpoplar growth are limited and slow to manifest, and are consistent with previous studies that show yellow-poplar growth is not highly responsive to O 3 exposure. In addition, these results show that enriched CO 2 may ameliorate the negative effects of elevated O 3 on yellow-poplar shoot growth and root biomass under field conditions.

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Interacting Effects of Multiple Stresses on Growth and Physiological Processes in Northern Forest Trees

Isebrands¹,

Dickson²,

Rebbeck³

et al. 2000

Ecological Studies

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Response of yellow-poplar (Liriodendron tulipifera L.) seedlings to simulated acid rain and ozone—1. Growth modifications

Cited by 9 publications

References 16 publications

Ozone effects on seedling sugar maple (Acer saccharum) and yellow-poplar (Liriodendron tulipifera): gas exchange

Ozone effects on seedling sugar maple (Acer saccharum) and yellow-poplar (Liriodendron tulipifera): gas exchange

Growth responses of yellow‐poplar(Liriodendron tulipifera L.) exposed to 5 years of O₃ aloneor combined with elevated CO₂

Interacting Effects of Multiple Stresses on Growth and Physiological Processes in Northern Forest Trees

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Response of yellow-poplar (Liriodendron tulipifera L.) seedlings to simulated acid rain and ozone—1. Growth modifications

Cited by 9 publications

References 16 publications

Ozone effects on seedling sugar maple (Acer saccharum) and yellow-poplar (Liriodendron tulipifera): gas exchange

Ozone effects on seedling sugar maple (Acer saccharum) and yellow-poplar (Liriodendron tulipifera): gas exchange

Growth responses of yellow‐poplar(Liriodendron tulipifera L.) exposed to 5 years of O3 aloneor combined with elevated CO2

Interacting Effects of Multiple Stresses on Growth and Physiological Processes in Northern Forest Trees

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Product

Resources

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Growth responses of yellow‐poplar(Liriodendron tulipifera L.) exposed to 5 years of O₃ aloneor combined with elevated CO₂