Estimation of photosynthesis parameters for a modified Farquhar–von Caemmerer–Berry model using simultaneous estimation method and nonlinear mixed effects model

Enhancement of crop photosynthesis by diffuse light: quantifying the contributing factors

“…A non-linear mixed effects model (Qian et al, 2012), using the non-rectangular hyperbola function (Thornley, 1976), was fitted to the measured photosynthetic light response data. The statistical software program R, version 2.14.2, package nlme was used to estimate the parameters P max , a, Q and R d in the non-rectangular hyperbola function…”

Steady‐state models of photosynthesis

“…The limitation from electron transport to a triose phosphate limitation does not always occur and can be difficult to diagnose particularly in field experiments (Bernacchi et al 2009). A number of protocols have been developed to help with fitting of CO2 response curves derived from gas exchange measurements (Ethier & Livingston 2004;Sharkey et al 2007;Patrick, Ogle & Tissue 2009;Gu et al 2010;Qian et al 2012;Wang et al 2012 showing diffusion paths for CO2 and the linkage between the light reactions, carbon reduction and photorespiratory cycles (C, chloroplast; M, mitochondrion; P, peroxisome). (a) depicts the scenario with one resistance to CO2 diffusion (rm) at the cell wall chloroplast interface such that Rubisco carboxylation and photorespiratory and other respiratory CO2 release occur in the same compartment.…”

Estimation of leaf and canopy photosynthesis of pot chrysanthemum and its implication on intensive canopy management

“…Inaccuracy of C c estimates, due to variability of RH and thus g m , did not provide reliable A/C C relationship. In a parameter estimation process of mixed effects model of photosynthesis Qian et al (2012) stated the need for simultaneous estimation of A/Q and A/C i relationships. As the present work parameterised A/C i curve prior to A/Q parameterisation it increased the reliability and accuracy of A/Q model parameterisation.…”