The key parameters of photosynthetic capacity (maximum carboxylation rate (V-max), electron transport capacity (J(max)) and dark respiration rate (R-d)) and the slope (m) of the stomatal conductance model of Ball et at. [Progress in photosynthetic research, Martinus Nijhoff, Dordrecht, 1987] were measured for a whole growing season in fully expande...
• We examined the relationships among roductivity, water use efficiency (WUE) and drought tolerance in 29 genotypes of Populus × euramericana (Populus deltoides × Populus nigra), and investigated whether some leaf traits could be used as predictors for productivity, WUE and drought tolerance. • At Orléans, France, drought was induced on one field p...
1. Relationships of leaf traits with rainfall at the place of origin of seed (RPO) are a function of acclimation and adaptation. To disentangle these effects we studied 29 species of 16-year-old Eucalyptus at a productive and an unproductive common garden (mean annual increments of above-ground stem volume = 21 ± 11 and 8 ± 5 m3 ha−1 years−1, respe...
Comparisons were made among Douglas fir forest, aspen (broad leaf deciduous) forest and wheatgrass (C3) grassland for ecosystem-level water-use efficiency. Water-use efficiency (WUE) was defined as the ratio of photosynthetic CO2 assimilation rate and evapo-transpiration (ET) rate. The ET data measured by eddy covariance were screened so that they ...
To test if some leaf parameters are predictors of productivity in a range of Populus deltoides (Bartr.) Marsh. × P. nigra L. clones, we assessed leaf traits and productivity in 2-month-old rooted cuttings from 31 clones growing in 4-l pots in a greenhouse, under conditions of controlled temperature and optimal irrigation. We evaluated four groups o...
A QTL analysis for three different adaptive traits was performed in an F-1 progeny of Castanea sativa Mill. The female and male parents originated from two Turkish chestnut populations adapted to a drought and humid environment, respectively. QTLs for bud flush, growth and carbon isotope discrimination were detected over a 3-year period. Bud set wa...
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