In modern horticultural crop production, wherever root-zone environments are optimally managed, canopy photosynthesis becomes the primary determinant of crop growth and yield, as suggested by numerous CO 2 enrichment experiments ( Ainsworth and
genotypes (salt-tolerant BARLP 4317 and salt-sensitive PI 516605) 4 and 8 d after treatment began. Limitations to photosynthesis. Salinity stress led to a substantial reduction in P n and g S for both genotypes at 4 and 8 DAT. BARLP 4317 exhibited 63
Abbreviations: CA, leaf chamber CO 2 concentration; CI, leaf internal CO 2 concentration; E, transpiration; g L , leaf conductance; MSC, moisture stress conditioning; Pn, net photosynthesis; r m , mesophyll resistance to CO 2 ; SI, stomatal
effects such as reduced net photosynthesis and yield or leaf abscission ( Durner, 2013 ; Vu et al., 2001 ). The effect of water stress on the decrease in photosynthetic activity has been primarily attributed to stomata closure and reduced transpiration
photosynthesis is a central growth-controlling physiological process for plants to respond to salt stress. Leaf photosynthesis is composed of a physical CO 2 diffusion process for carbon supply and a sequence of physiological and biochemical processes for carbon
In the terrestrial ecosystem, carbon is added to plants through fixing of atmospheric CO 2 by the process of photosynthesis ( A n ), which can be defined as an oxidation-reduction reaction activated through light absorbed by chlorophyll, resulting
. Mitigating the inhibition of P n under high plant density probably occurs in only cases in which stomatal closure resulting from high VDP affects a limiting factor of photosynthesis before other factors. Fig. 6. Effects of vapor-pressure deficit (VPD) near
Water is a limited resource worldwide. Water deficits often result in a decrease of P n , which can influence vegetative growth, yield, and fruit quality in fruit trees. The response of photosynthesis to water stress is correlated with stress
plant photosynthesis and marketability of the crop ( Franco et al., 2006 ). In some cases, stomatal conductance ( g S ) may not fully recover after periods of sustained or periodic water stress or previously stressed plants may acclimate through
evaluate environmental conditions in each of the three systems and investigate the possible role of cutting photosynthesis in differential rooting responses. Materials and Methods Plant material. On 12 July 2018, 150 semihardwood terminal stem cuttings were