The comparation of model application results in T. pratense or W. trilobata.

EF, exponential function; HTF, hyperbolic tangent function; NHM, nonrectangular hyperbola model; RHM, rectangular hyperbolic model; BRF, binomial regression function; MM, modified model based on the rectangular hyperbolic model; NIMM, non-competitive inhibited Michaelis-Menten model; Ki denotes the inhibition constant; Pm, maximum net photosynthetic rate;e is natural logarithm, 2.71828; a and b is constant; θ is convexity of the PI curve; α denotes the photochemical efficiency of photosynthesis at low light, i.e., the initial slope of the PI curve; β and γ are the coefficients that are independent of irradiance; Rd denotes the dark respiration rate; AIC, Akaike's information criterion.The comparation of model application results in T. pratense or W. trilobata.