Four Turkish provenances and five Lebanese provenances of Cedrus libani A. Rich. and one Cypriot provenance of C. brevifolia Henry were compared during the third year of growth in a controlled-climate greenhouse after exposure to a well-watered or moderate-drought treatment. Effects of treatment on CO2 assimilation (A), stomatal conductance (gs), 1...
Four Turkish provenances and five Lebanese provenances of Cedrus libani A. Rich. and one Cypriot provenance of C. brevifolia Henry were compared during the third year of growth in a controlled-climate greenhouse after exposure to a well-watered or moderate-drought treatment. Effects of treatment on CO2 assimilation (A), stomatal conductance (gs), 1...
Growth pattern, intra and inter annual variability of δ13C in the poplar clones (Populus x euramericana hybrids) at two different sites were investigated. High growth variation was found among the clones present at Migron as no definite growth pattern was followed by the clones. BAI for the clones went on increasing till the rotation time. At Begaa...
Soybean plants were subjected, during their growing seasons, to well-watered and water-stressed conditions, and three levels of ozone concentration (zero, low and high) in open top chambers (OTCs). At the end of the soybean growing season accumulated AOT40 values were zero, 3400 and 9000 ppb h for the filtered (control), low and high levels of ozon...
The combination of stomatal-dependent ozone flux and total ascorbate level is currently presented as a correct indicator for determining the degree of sensitivity of plants to ozone. However, the large changes in carbon metabolism could play a central role in the strategy of the foliar cells in response to chronic ozone exposure, participating in t...
Water-use efficiency (WUE) has been recognized as an important characteristic of vegetation productivity in various natural scientific disciplines for decades, but only recently at the ecosystem level, where different ways exist to characterize water-use efficiency. 5 Hence, the objective of this research was (a) to systematically compare different...
Published in Annals of botany
Leaf responses to environmental conditions have been frequently described in fruit trees, but differences among cultivars have received little attention. This study shows that parameters of Farquhar's photosynthesis and Jarvis' stomatal conductance models differed between two apple cultivars, and examines the consequences of these differences for l...
The capacity of the apple tree to tolerate temporary abiotic constraints was investigated through leaf responses to different vapor pressure deficits (VPD). A ‘Starkrimson’ x ‘Granny Smith’ F1 progeny of 125 full-sibs whip-grafted onto Pajam® 2 rootstocks and pot-cultivated was studied (three replicates). After two months, plants were transferred i...
