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You searched for: Journal name Tree physiology Remove constraint Journal name: Tree physiology Publication year rev 7994-2006 Remove constraint Publication year rev: 7994-2006 Source 2006 v.26 no.7 Remove constraint Source: 2006 v.26 no.7
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1. Climate warming and the risk of frost damage to boreal forest trees: identification of critical ecophysiological traits

Author:
Hanninen, H.
Source:
Tree physiology 2006 v.26 no.7 pp. 889-898
ISSN:
0829-318X
Subject:
tree growth; simulation models; forest trees; boreal forests; equations; cold stress; climate change; frost resistance; seasonal variation; temperature; air pollution; forest damage; tree damage; Finland
Abstract:
... According to a hypothesis presented in the mid-1980s, climate warming will, paradoxically, increase the risk of frost damage to trees in the boreal and temperate zones. Dehardening and even growth onset may occur in trees during mild spells in winter and early spring, resulting in damage during subsequent periods of frost. In the present study, ecophysiological traits critical to the occurrence of ...
DOI:
10.1093/treephys/26.7.889
PubMed:
16585034

2. Differential light responses of Mediterranean tree saplings: linking ecophysiology with regeneration niche in four co-occurring species

Author:
Gomez-Aparicio, L.; Valladares, F.; Zamora, R.
Source:
Tree physiology 2006 v.26 no.7 pp. 947-958
ISSN:
0829-318X
Subject:
Quercus pyrenaica; forest trees; quantitative analysis; shade tolerance; Pinus nigra; fluorescence; niches; Acer; net assimilation rate; light intensity; ecological succession; diurnal variation; photosynthesis; chlorophyll; Quercus ilex; forest ecology; Spain
Abstract:
... The ecophysiological mechanisms underlying plant-plant interactions and forest regeneration processes in Mediterranean ecosystems are poorly understood, and the experimental evidence for the role of light availability in these processes is particularly scant. We analyzed the effects of high and low irradiances on 31 ecological, morphological and physiological variables in saplings of four late-suc ...
DOI:
10.1093/treephys/26.7.947
PubMed:
16585040

3. In vivo and in situ rhizosphere respiration in Acer saccharum and Betula alleghaniensis seedlings grown in contrasting light regimes

Author:
Delagrange, S.; Huc, F.; Messier, C.; Dizengremel, P.; Dreyer, E.
Source:
Tree physiology 2006 v.26 no.7 pp. 925-934
ISSN:
0829-318X
Subject:
Acer saccharum; forest trees; seedling growth; rhizosphere; roots; photorespiration; light intensity; circadian rhythm; temperature; seasonal variation; diurnal variation; growth models; mathematical models; equations
Abstract:
... A perfusive method combined with an open-system carbon dioxide measurement system was used to assess rhizosphere respiration of Acer saccharum Marsh. (sugar maple) and Betula alleghaniensis Britton (yellow birch) seedlings grown in 8-1 pots filled with coarse sand. We compared in vivo and in situ rhizosphere respiration between species, among light regimes (40, 17 and 6% of full daylight) and at d ...
DOI:
10.1093/treephys/26.7.925
PubMed:
16585038

4. Influences of canopy photosynthesis and summer rain pulses on root dynamics and soil respiration in a young ponderosa pine forest

Author:
Misson, L.; Gershenson, A.; Tang, J.; McKay, M.; Cheng, W.; Goldstein, A.
Source:
Tree physiology 2006 v.26 no.7 pp. 833-844
ISSN:
0829-318X
Subject:
Pinus ponderosa; forest trees; canopy; photosynthesis; net assimilation rate; seasonal variation; rain; roots; nutrient uptake; soil nutrient dynamics; soil respiration; rhizosphere; forest soils; growth models; mathematical models; equations; California
Abstract:
... Our first objective was to link the seasonality of fine root dynamics with soil respiration in a ponderosa pine (Pinus ponderosa P. & C. Lawson) plantation located in the Sierra Nevada of California. The second objective was to examine how canopy photosynthesis influences fine root initiation, growth and mortality in this ecosystem. We compared CO2 flux measurements with aboveground and belowgroun ...
DOI:
10.1093/treephys/26.7.833
PubMed:
16585030

5. Interspecific variation in vessel size, growth and drought tolerance of broad-leaved trees in semi-arid regions of Kenya

Author:
Kondoh, S.; Yahata, H.; Nakashizuka, T.; Kondoh, M.
Source:
Tree physiology 2006 v.26 no.7 pp. 899-904
ISSN:
0829-318X
Subject:
arid lands; developmental stages; drought tolerance; height; dieback; xylem vessels; Acacia; water stress; root hydraulic conductivity; wood anatomy; mathematical models; forest trees; diameter; equations; translocation (plant physiology); Melia; Senna siamea; tree growth; Jacaranda mimosifolia; Azadirachta indica; growth models; genetic variation; tree damage; Kenya
Abstract:
... In semi-arid regions, trees often wither during the dry season. Withering is sometimes manifest as die-back, whereby whithering results in shoot death, which progresses downward from the uppermost part of the crown. In this study, we measured the relationships between height growth and diameter at breast height, die-back frequency and severity, vessel size and specific hydraulic conductivity of fo ...
DOI:
10.1093/treephys/26.7.899
PubMed:
16585035

6. Responses of Picea mariana to elevated CO2 concentration during growth, cold hardening and dehardening: phenology, cold tolerance, photosynthesis and growth

Author:
Bigras, F.J.; Bertrand, A.
Source:
Tree physiology 2006 v.26 no.7 pp. 875-888
ISSN:
0829-318X
Subject:
Picea mariana; forest trees; buds; carbon dioxide; elevated atmospheric gases; tree growth; cold tolerance; photosynthesis; net assimilation rate; seasonal variation; chlorophyll; fluorescence; gas exchange; nitrogen; phosphorus; potassium; ribulose-bisphosphate carboxylase; genes; gene expression; provenance; geographical variation; climate change; Canada
Abstract:
... Seedlings from a northern and a southern provenance of black spruce (Picea mariana Mill. BSP) from eastern Canada were exposed to 37 or 71 Pa of carbon dioxide (CO2) during growth, cold hardening and dehardening in a green-house. Bud phenology, cold tolerance and photosynthetic efficiency were assessed during the growing and over-wintering periods. Bud set occurred earlier in elevated CO2 than in ...
DOI:
10.1093/treephys/26.7.875
PubMed:
16585033

7. A comparative analysis of simulated and observed photosynthetic CO2 uptake in two coniferous forest canopies

Author:
Ibrom, A.; Jarvis, P.G.; Clement, R.; Morgenstern, K.; Oltchev, A.; Medlyn, B.E.; Wang, Y.P.; Wingate, L.; Moncrieff, J.B.; Gravenhorst, G.
Source:
Tree physiology 2006 v.26 no.7 pp. 845-864
ISSN:
0829-318X
Subject:
Picea abies; Picea sitchensis; forest trees; canopy; carbon dioxide; gas exchange; photosynthesis; net assimilation rate; light intensity; mathematical models; equations; coniferous forests; Scotland
Abstract:
... Gross canopy photosynthesis (P(g)) can be simulated with canopy models or retrieved from turbulent carbon dioxide (CO2) flux measurements above the forest canopy. We compare the two estimates and illustrate our findings with two case studies. We used the three-dimensional canopy model MAESTRA to simulate P(g) of two spruce forests differing in age and structure. Model parameter acquisition and mod ...
DOI:
10.1093/treephys/26.7.845
PubMed:
16585031

8. Changes in photosynthesis and leaf characteristics with tree height in five dipterocarp species in a tropical rain forest

Author:
Kenzo, T.; Ichie, T.; Watanabe, Y.; Yoneda, R.; Ninomiya, I.; Koike, T.
Source:
Tree physiology 2006 v.26 no.7 pp. 865-873
ISSN:
0829-318X
Subject:
tropical rain forests; Shorea; canopy; forest trees; nitrogen content; Dryobalanops; seedlings; net assimilation rate; light intensity; Dipterocarpus; height; photosynthesis; plant morphology; leaves; Borneo
Abstract:
... Variations in leaf photosynthetic, morphological and biochemical properties with increasing plant height from seedlings to emergent trees were investigated in five dipterocarp species in a Malaysian tropical rain forest. Canopy openness increased significantly with tree height. Photosynthetic properties, such as photosynthetic capacity at light saturation, light compensation point, maximum rate of ...
DOI:
10.1093/treephys/26.7.865
PubMed:
16585032

9. Dark respiration rate increases with plant size in saplings of three temperate tree species despite decreasing tissue nitrogen and nonstructural carbohydrates

Author:
Machado, J.L.; Reich, P.B.
Source:
Tree physiology 2006 v.26 no.7 pp. 915-923
ISSN:
0829-318X
Subject:
Abies balsamea; Acer rubrum; Pinus strobus; forest trees; canopy; leaves; photorespiration; light intensity; dry matter accumulation; biosynthesis; chemical composition; carbohydrates; quantitative analysis; tree age
Abstract:
... In shaded environments, minimizing dark respiration during growth could be an important aspect of maintaining a positive whole-plant net carbon balance. Changes with plant size in both biomass distribution to different tissue types and mass-specific respiration rates (R(d)) of those tissues would have an impact on whole-plant respiration. In this paper, we evaluated size-related variation in R(d), ...
DOI:
10.1093/treephys/26.7.915
PubMed:
16585037

10. In vitro regeneration of Salix nigra from adventitious shoots

Author:
Lyyra, S.; Lima, A.; Merkle, S.A.
Source:
Tree physiology 2006 v.26 no.7 pp. 969-975
ISSN:
0829-318X
Subject:
inflorescences; dose response; adventitious shoots; plant growth substances; explants; benzyladenine; micropropagation; Salix nigra; in vitro regeneration; culture media; tissue culture; Georgia
Abstract:
... Black willow (Salix nigra Marsh.) is the largest and only commercially important willow species in North America. It is a candidate for phytoremediation of polluted soils because it is fast-growing and thrives on floodplains throughout eastern USA. Our objective was to develop a protocol for the in vitro regeneration of black willow plants that could serve as target material for gene transformatio ...
DOI:
10.1093/treephys/26.7.969
PubMed:
16585042

11. Leaf gas exchange characteristics of three neotropical mangrove species in response to varying hydroperiod

Author:
Krauss, K.W.; Twilley, R.R.; Doyle, T.W.; Gardiner, E.S.
Source:
Tree physiology 2006 v.26 no.7 pp. 959-968
ISSN:
0829-318X
Subject:
Avicennia germinans; Laguncularia racemosa; Rhizophora mangle; mangrove swamps; leaves; photosynthesis; net assimilation rate; light intensity; water stress; flooding tolerance; water use efficiency; Florida
Abstract:
... We determined how different hydroperiods affected leaf gas exchange characteristics of greenhouse-grown seedlings (2002) and saplings (2003) of the mangrove species Avicennia germinans (L.) Stearn., Laguncularia racemosa (L.) Gaertn. f., and Rhizophora mangle L. Hydroperiod treatments included no flooding (unflooded), intermittent flooding (intermittent), and permanent flooding (flooded). Plants i ...
Handle:
10113/32281
DOI:
10.1093/treephys/26.7.959
PubMed:
16585041

12. Plasticity of growth and sylleptic branchiness in two poplar families grown at three sites across Europe

Author:
Marron, N.; Bastien, C.; Sabatti, M.; Taylor, G.; Ceulemans, R.
Source:
Tree physiology 2006 v.26 no.7 pp. 935-946
ISSN:
0829-318X
Subject:
tree growth; heterosis; hybrids; forest trees; stems; plant architecture; Populus deltoides; branching; genetic variation; Populus trichocarpa; genotype-environment interaction; phenotypic variation; interspecific hybridization; heritability; Populus nigra; France; Italy; England
Abstract:
... Two hybrid poplar maternal half-sib families, resulting from controlled crosses of the female parent Populus deltoides 'S9-2' with P. nigra 'Ghoy' and P. trichocarpa 'V24', were grown at three sites: northern Italy, central France and southern England. Juvenile stem growth traits (height, circumference and volume) and sylleptic branchiness (number of branches, density of branches per unit of stem ...
DOI:
10.1093/treephys/26.7.935
PubMed:
16585039

13. Terminal bud failure of black cottonwood (Populus trichocarpa) exposed to salt-laden winter storms

Author:
Jonsson, T.H.
Source:
Tree physiology 2006 v.26 no.7 pp. 905-914
ISSN:
0829-318X
Subject:
tree growth; salt tolerance; temperature; buds; dose response; winter; salinity; relative humidity; Populus trichocarpa; wind speed; leaves; sodium chloride; saline water; seasonal variation; storms; coastal water; salt stress; Iceland; Alaska
Abstract:
... At coastal sites, trees are exposed to marine aerosols that may cause foliar necrosis and shoot dieback, which can result in deformed crowns and contorted stems. A six-year study of leaf primordia in terminal buds of black cottonwood trees (Populus trichocarpa Torr. & Gray) on Heimaey Island off the south coast of Iceland was undertaken to elucidate the physiological events associated with salt-de ...
DOI:
10.1093/treephys/26.7.905
PubMed:
16585036