Elevated atmospheric partial pressure of carbon dioxide and dry matter production of konjak (Amorphophallus konjac K. Koch)

Imai, Katsu; Coleman, D. F.

doi:10.1007/bf00041830

Cited by 11 publications

(2 citation statements)

References 9 publications

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“…Oberbauer et al (1985) reported similar results from their study of tropical pioneer and climax tree species. Many other workers have observed increased biomass production in various species, including a variety of tropical species (Downton et al 1990;Ziska et al in press), temperate trees Norby et al 1986;Hollinger 1987;Arnone and Gordon 1990), agricultural crop species (Wong 1979;Imai & Coleman 1983;Rogers 1983;Del Castillo et al 1989), a vine (Sasek & Strain 1989) and a succulent CAM species (Idso et al 1986;Szarek et al 1987). In contrast to these observations of marked growth enhancement due to elevated CO2, Tolley & Strain (1984a) reported no significant enhancement in growth of P. taeda seedlings.…”

Section: Total Biomass Productionmentioning

confidence: 62%

Plant water relations and the effects of elevated CO2: a review and suggestions for future research

1993

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Increased ambient carbon dioxide ( C O 2 ) has been found to ameliorate water stress in the majority of species studied. The results of many studies indicate that lower evaporative flux density is associated with high CO2-induced stomatal closure. As a result of decreases in evaporative flux density and increases in net photosynthesis, also found to occur in high CO2 environments, plants have often been shown to maintain higher water use efficiencies when grown at high CO2 than when grown in normal, ambient air. Plants grown at high CO2 have also been found to maintain higher total water potentials, to increase biomass production, have larger root-to-shoot ratios, and to be generally more drought resistant (through avoidance mechanisms) than those grown at ambient C O 2 levels. High C02-induced changes in plant structure (i.e., vessel or tracheid anatomy, leaf specific conductivity) may be associated with changes in vulnerability to xylem cavitation or in environmental conditions in which runaway embolism is likely to occur. Further study is needed to resolve these important issues. Methodology and other C02 effects on plant water relations are discussed.Abbreviations: A = net photosynthesis; C a = ambient [CO2]; C i = internal [CO2]; E = evaporative flux density; g~ = leaf conductance; gs = stomatal conductance; LSC = leaf specific conductivity; IRGA = infrared gas analyzer; LAI = leaf area index; PAR = photosynthetically active radiation; W = total plant water potential; Wsoil = soil water potential; Ws = solute potential; kl/pt = turgor pressure potential; Wpx = xylem pressure potential; RH = relative humidity; R: S = root to shoot ratio; RWC = relative water content; SLA = specific leaf area; SLW = specific leaf weight; SPAC = soil-plant-atmosphere-continuum; SWC = soil water content; VPD = vapor pressure deficit; WUE = water use efficiency.

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Section: Total Biomass Productionmentioning

confidence: 62%

Plant water relations and the effects of elevated CO2: a review and suggestions for future research

1993

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“…As the CO 2 concentration is higher in tropical rain forests, up to 510~l l~I at ground level (Aoki, Yabuki, and Koyama, 1975) or even more (1,000~ll-l; Blanc, 1989), this peculiar Ci response may be related to a physiological adaptation of photosynthesis to high CO 2 concentrations. Indeed, for some species at least, it has been demonstrated that at high Ci, plants grown at elevated CO 2 concentration have higher CO 2 assimilation rates than plants grown at normal CO 2 concentration (see Imai and Coleman, 1983;Von Caemmerer and Farquhar, 1984). This can also be related to an unusually high ratio of RuBP-regeneration capacity to Rubisco activity (Walters and Field, 1987).…”

Section: Results-photosynthetic Gas Exchange Characteristics-mentioning

confidence: 99%

Relations Between Sunfleck Sequences and Photoinhibition of Photosynthesis in a Tropical Rain Forest Understory Herb

Gouallec¹,

Cornic²,

Blanc³

1990

American J of Botany

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We report the photosynthetic characteristics of a C3 shade plant native to the tropical rain forest understory. It was shown that Elatostema repens Lour. (Hall) f. (Urticaceae) presents a large light adjustment capacity. The effects of several lightfleck sequences on photoinhibition of photosynthesis and carbon gain are analyzed. Photoinhibition is measured both as a decrease in leaf net CO2 uptake in limiting light (shown to be linearly correlated to quantum yield of O2 evolution measured at saturating CO2) and as a decrease of the ratio of variable fluorescence (Fv) to maximum fluorescence (Fmax) measured in liquid nitrogen. It is shown that lightflecks (from 10 to 30 min in duration) of 700 μmol m–2 s–1 (high light) induce photoinhibition, and that the effects of those successive high light periods are additive; there is apparently no recovery from photoinhibition during the low light periods (from 10 to 45 min in duration). In contrast, the Fv/Fmax ratio, though decreasing similarly to quantum yield of net CO2 uptake on leaves submitted to a continuous illumination of 700 μmol m–2 s–1, is only decreased a little on leaves submitted to lightfleck sequences of the same photon flux density. Lightflecks of 250 μmol m–2 s–1 are not photoinhibitory. Compared to the control maintained under light growth condition (40 μmol m–2 s–1) carbon gain is increased on leaves submitted to lightflecks; this gain remains high throughout the light cycles on leaves submitted to nonphotoinhibitory lightflecks and to the photoinhibitory lightflecks followed by the shortest low light period. In the other cases, carbon gain, higher than that of the control at the beginning of the treatments, decreases and becomes lower than the control carbon gain. Finally, the relevance of photoinhibition in the tropical rain forest understory environment is discussed.

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CO₂Enrichment of Protected Crops

Porter

Grodzinski

1985

Horticultural Reviews

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Elevated atmospheric partial pressure of carbon dioxide and dry matter production of konjak (Amorphophallus konjac K. Koch)

Cited by 11 publications

References 9 publications

Plant water relations and the effects of elevated CO2: a review and suggestions for future research

Plant water relations and the effects of elevated CO2: a review and suggestions for future research

Relations Between Sunfleck Sequences and Photoinhibition of Photosynthesis in a Tropical Rain Forest Understory Herb

CO₂Enrichment of Protected Crops

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Elevated atmospheric partial pressure of carbon dioxide and dry matter production of konjak (Amorphophallus konjac K. Koch)

Cited by 11 publications

References 9 publications

Plant water relations and the effects of elevated CO2: a review and suggestions for future research

Plant water relations and the effects of elevated CO2: a review and suggestions for future research

Relations Between Sunfleck Sequences and Photoinhibition of Photosynthesis in a Tropical Rain Forest Understory Herb

CO2Enrichment of Protected Crops

Contact Info

Product

Resources

About

CO₂Enrichment of Protected Crops