pinus ponderosa branch/leaf oil

ponderosa pine branch/leaf oil western yellow pine branch/leaf oil xi huang song branch/leaf oil volatile oil obtained from the branches and needles of pinus ponderosa, pinaceae PubMed: Drought stress limits the geographic ranges of two tree species via different physiological mechanisms. PubMed: Differential controls by climate and physiology over the emission rates of biogenic volatile organic compounds from mature trees in a semi-arid pine forest. PubMed: Expression of functional traits during seedling establishment in two populations of Pinus ponderosa from contrasting climates. PubMed: Three causes of variation in the photochemical reflectance index (PRI) in evergreen conifers. PubMed: An integrated model of environmental effects on growth, carbohydrate balance, and mortality of Pinus ponderosa forests in the southern Rocky Mountains. PubMed: Tropospheric ozone reduces carbon assimilation in trees: estimates from analysis of continuous flux measurements. PubMed: Responses of Dendroctonus brevicomis (Coleoptera: Curculionidae) in behavioral assays: implications to development of a semiochemical-based tool for tree protection. PubMed: Paired comparison of water, energy and carbon exchanges over two young maritime pine stands (Pinus pinaster Ait.): effects of thinning and weeding in the early stage of tree growth. PubMed: The ecology of the phyllosphere: geographic and phylogenetic variability in the distribution of bacteria on tree leaves. PubMed: Variation in woody plant mortality and dieback from severe drought among soils, plant groups, and species within a northern Arizona ecotone. PubMed: Leaf hydraulic conductance, measured in situ, declines and recovers daily: leaf hydraulics, water potential and stomatal conductance in four temperate and three tropical tree species. PubMed: Estimating forest LAI profiles and structural parameters using a ground-based laser called 'Echidna'. PubMed: Bole girdling affects metabolic properties and root, trunk and branch hydraulics of young ponderosa pine trees. PubMed: What the towers don't see at night: nocturnal sap flow in trees and shrubs at two AmeriFlux sites in California. PubMed: Foliar mercury accumulation and exchange for three tree species. PubMed: Homeostatic maintenance of ponderosa pine gas exchange in response to stand density changes. PubMed: Co-occurring species differ in tree-ring delta(18)O trends. PubMed: Hydraulic compensation in northern Rocky Mountain conifers: does successional position and life history matter? PubMed: Seasonality of photosynthetic parameters in a multi-specific and vertically complex forest ecosystem in the Sierra Nevada of California. PubMed: Restoration thinning and influence of tree size and leaf area to sapwood area ratio on water relations of Pinus ponderosa. PubMed: Host physiological condition regulates parasitic plant performance: Arceuthobium vaginatum subsp. cryptopodum on Pinus ponderosa. PubMed: Physiological responses of ponderosa pine in western Montana to thinning, prescribed fire and burning season. PubMed: Native root xylem embolism and stomatal closure in stands of Douglas-fir and ponderosa pine: mitigation by hydraulic redistribution. PubMed: Age-related changes in ecosystem structure and function and effects on water and carbon exchange in ponderosa pine. PubMed: A comparison of three approaches to modeling leaf gas exchange in annually drought-stressed ponderosa pine forests. PubMed: Ozone uptake, water loss and carbon exchange dynamics in annually drought-stressed Pinus ponderosa forests: measured trends and parameters for uptake modeling. PubMed: Evidence that hydraulic conductance limits photosynthesis in old Pinus ponderosa trees. PubMed: Photosynthetic adjustment in field-grown ponderosa pine trees after six years of exposure to elevated CO(2). PubMed: Differences in leaf gas exchange and water relations among species and tree sizes in an Arizona pine-oak forest. PubMed: Spatial pattern of allozyme variation in a contact zone of Pinus Ponderosa and P. arizonica (Pinaceae). PubMed: Changes in whole-tree water relations during ontogeny of Pinus flexilis and Pinus ponderosa in a high-elevation meadow. PubMed: Effects of branch height on leaf gas exchange, branch hydraulic conductance and branch sap flux in open-grown ponderosa pine. PubMed: Soil compaction effects on water status of ponderosa pine assessed through 13C/12C composition. PubMed: Alteration of foliar flavonoid chemistry induced by enhanced UV-B radiation in field-grown Pinus ponderosa, Quercus rubra and Pseudotsuga menziesii. PubMed: Water limitations to carbon exchange in old-growth and young ponderosa pine stands. PubMed: Time-series analysis of delta13C from tree rings. I. Time trends and autocorrelation. PubMed: Leaf area distribution and radiative transfer in open-canopy forests: implications for mass and energy exchange. PubMed: Family differences in height growth and photosynthetic traits in three conifers. PubMed: Xylem conductivity and vulnerability to cavitation of ponderosa pine growing in contrasting climates. PubMed: Response of stomatal conductance to drought in ponderosa pine: implications for carbon and ozone uptake. PubMed: Carbon dioxide and water vapor exchange by young and old ponderosa pine ecosystems during a dry summer. PubMed: Use of a simulation model and ecosystem flux data to examine carbon-water interactions in ponderosa pine. PubMed: Effects of elevated CO(2) and nitrogen on the synchrony of shoot and root growth in ponderosa pine. PubMed: To live fast or not: growth, vigor and longevity of old-growth ponderosa pine and lodgepole pine trees. PubMed: Direct and indirect effects of elevated CO(2) on whole-shoot respiration in ponderosa pine seedlings. PubMed: Carbon allocation, gas exchange, and needle morphology of Pinus ponderosa genotypes known to differ in growth and survival under imposed drought. PubMed: Offsetting changes in biomass allocation and photosynthesis in ponderosa pine (Pinus ponderosa) in response to climate change. PubMed: Physiological adjustment of two full-sib families of ponderosa pine to elevated CO(2). PubMed: Effects of acidic fog on seedlings of Pinus ponderosa and Abies concolor: foliar injury, physiological and biochemical responses. PubMed: Simulating the effects of climatic variation on stem carbon accumulation of a ponderosa pine stand: comparison with annual growth increment data. PubMed: Fall lifting and long-term freezer storage of ponderosa pine seedlings: effects on post-storage leaf water potential, stomatal conductance, and root growth potential.