Despite the generally observed reduction in leaf-level stomatal conductance under elevated [CO2] [16], site-level transpiration of the SRC was observed to increase by up to 23% owing to a larger leaf area index, the integrated plant response to light and vapor pressure deficit and the lengthening of the growing season under elevated compared to current [CO2] [CO2]
Modelling results presented in this paper suggest that elevated atmospheric CO2 concentrations (eCO2) lead to reductions in leaf-level stomatal conductance and increases in water use efficiency.
This suggests that the still common assumption that eCO2 will generally reduce vegetation water use due to reductions in leaf-level stomatal conductance is not justified in water-limited catchments.
Second, the focal species that exhibited the greatest variation in leaf-level physiological traits between the two seed sources in this experiment (A. gerardii) did not become dominant and the increasingly dominant species (S. nutans) exhibited the least difference in these traits between the two seed sources (Lambert et al. 2011).
We anticipated that the grass cultivars would be more productive than the local ecotypes based on evidence for enhanced in leaf-level physiological processes (i.e., net photosynthesis rate, stomatal conductance, and intrinsic water use efficiency) of cultivars in this field experiment (Table 1) and enhanced root traits from a related experiment (Klopf and Baer 2011).
A difference in NUE at leaf level between stands reflects the difference in NP more than the difference in MRT.
The strong decrease in the NR expression at leaf level could be in agreement with the decrease in the NO3- concentration and with the increase in the aa concentration.
In conclusion, simulations of leaf level PAR based on combinations of detailed 3D surfaced-based plant and light distribution models are suitable to derive light-induced physiological responses on organ level.
Combinations of static 3D plant models with 3D light models are used for analyzing the complex light distribution on leaf level in silico, but detailed measurements for evaluation of simulation results are almost non-existent.
Upon reaching the target leaf node, he then follows the sibling pointers in the leaf level.
No potential cis-acting elements (see below) were identified in this region and it is not clear that these minor changes would explain the substantial difference in the leaf level of AOP2 transcript observed amongst these accessions.
