scholarly journals Scarce population genetic differentiation but substantial spatiotemporal phenotypic variation of water-use efficiency in Pinus sylvestris at its western distribution range

2018 ◽  
Vol 137 (6) ◽  
pp. 863-878 ◽  
Author(s):  
F. Santini ◽  
J. P. Ferrio ◽  
A.-M. Hereş ◽  
E. Notivol ◽  
M. Piqué ◽  
...  
Keyword(s):  
Genetic Differentiation ◽  
Pinus Sylvestris ◽  
Water Use Efficiency ◽  
Water Use ◽  
Phenotypic Variation ◽  
Population Genetic ◽  
Distribution Range ◽  
Population Genetic Differentiation ◽  
Use Efficiency

scholarly journals Diurnal variation in mesophyll conductance and its influence on modelled water-use efficiency in a mature boreal Pinus sylvestris stand

2019 ◽  
Vol 141 (1) ◽  
pp. 53-63 ◽  
Author(s):  
Zsofia R. Stangl ◽  
Lasse Tarvainen ◽  
Göran Wallin ◽  
Nerea Ubierna ◽  
Mats Räntfors ◽  
...  
Keyword(s):  
Pinus Sylvestris ◽  
Diurnal Variation ◽  
Water Use Efficiency ◽  
Water Use ◽  
Mesophyll Conductance ◽  
Use Efficiency

scholarly journals Contrasting growth and water use efficiency after thinning in mixed Abies pinsapo–Pinus pinaster–Pinus sylvestris forests

2016 ◽  
Vol 62 (No. 2) ◽  
pp. 53-64 ◽  
Author(s):  
Navarro-Cerrillo RM ◽  
R. Sánchez-Salguero ◽  
R. Herrera ◽  
Ruiz CJ Ceacero ◽  
Moreno-Rojas JM ◽  
...  
Keyword(s):  
Pinus Sylvestris ◽  
Water Use Efficiency ◽  
Water Use ◽  
Pinus Pinaster ◽  
Use Efficiency ◽  
Abies Pinsapo

Stomatal conductance and transpiration in shoots of Scots pine after 4-year exposure to elevated CO2 and temperature

1997 ◽  
Vol 75 (4) ◽  
pp. 552-561 ◽  
Author(s):  
Kai-Yun Wang ◽  
Seppo Kellomäki
Keyword(s):  
Elevated Temperature ◽  
Stomatal Conductance ◽  
Pinus Sylvestris ◽  
Water Use Efficiency ◽  
Water Use ◽  
Photon Flux ◽  
Absolute Value ◽  
Use Efficiency ◽  
The Absolute

Single Scots pines (Pinus sylvestris L.) trees were subjected to elevated temperature (year-round elevation), elevated CO2 (elevation from April 15 to September 15), and a combination of elevated temperature and CO2, for 4 years in open-topped chambers. Measurements and modelling were performed to determine if long-term growth at elevated CO2 concentration and temperature altered water use efficiency (WE) and the responses of stomatal conductance (gs) to photon flux density (Qp), the leaf-to-air vapour pressure difference (Dv), leaf temperature (Tl), and intercellular concentration of CO2 (Ci). Long-term elevation of CO2 led to a significant decline in the absolute value of gs at almost all levels of Qp, Dv, Ci, and Tl. Elevated temperature treatment increased the absolute value of gs only at higher Dv and Tl. The effect of the combination of elevated CO2 and temperature did not appear as a mean of the effects of the two single factors, while there was an interaction between the two factors. The modifications in the sensitivity of stomata, resulting from different treatments, did not have the same pattern as the change in gs, but depended on levels of Qp, Dv, and Tl. Compared with the control treatment, elevated concentration of CO2 or a combination of elevated CO2 and temperature led, on average, to 50 and 30% increases in WE, respectively, which can be attributed mainly to an increase in the rate of net assimilation. In contrast, elevated temperature alone did not significantly change WE, although transpiration rate was increased. Key words: long-term CO2 and temperature elevation, stomatal conductance, transpiration, water use efficiency, Pinus sylvestris.

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