|Table of Contents|

Comparison of the Fitting Several Models With the Chlorophyll Fluorescence Rapid Light Curves (RLCS) Method of Sophora moorcroftiana

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年09
Page:
83-89
Research Field:
Publishing date:

Info

Title:
Comparison of the Fitting Several Models With the Chlorophyll Fluorescence Rapid Light Curves (RLCS) Method of Sophora moorcroftiana
Author(s):
ZHAO Yuwen; LIN Ling; NAN Jibin; LI Yingping; DUAN Shaorong
(College of Resources and Environment,Tibet Agricultural and Animal Husbandry University，Linzhi,Tibet 860000)
Keywords:
chlorophyll fluorescence-rapid light curve; modified rectangular hyperbolic model; electron transport rate; saturation irradiance; Sophora moorcroftiana
PACS:
-
DOI:
10.11937/bfyy.20183248
Abstract:
The chlorophyll fluorescence-rapid light curve of two provenances of Sophora moorcrofiana was fittd by rectangular hyperbolic model,non-rectangular hyperbolic model,single exponential equation,double exponential equation and modified rectangular hyperbolic model with Sophora moorcrofiana of Tibet as a research material,and the applicability of five models to the chlorophyll fluorescence-rapid light curve of Sophora moorcroftiana was studied.In order to provide a reference for screening the optimal model and further studied the physiology and ecology of Sophora moorcrofiana.The results showed that rectangular hyperbolic model,non-rectangular hyperbolic model and single exponential equation could not fit the curves (photoinhibition) with dynamic down-regulation of PSⅡ and could not directly calculate the saturation irradiance (PARsat) of Sophora moorcrofiana,and the maximum electron transport rate (Jmax) was higher than the measured values.The main fluorescence parameters fitted by the double exponential equation and modified rectangular hyperbolic model of Sophora moorcroftiana,but the maximum electron transfer rate (Jmax) fitted by the double exponential equation was lower than the measured value,and the saturation irradiance (PARsat) was higher than the measured value.The main fluorescence parameters fitted by modified rectangular hyperbolic model had the strongest correlation with the measured values (R2=0.998,R2=0.994).Root Mean Square Error (RMSE),Mean Absolute Error (MAE) and Akaichi Information Criterion (AIC) were used to evaluate the five photosynthetic models,it was found that the fluorescence parameters fitted by modified rectangular hyperbola model had the highest credibility and it had a significant superior to the other four photosynthetic models.In the five photosynthetic models,modified rectangular hyperbolic model was the best model to fit the chlorophyll fluorescence-rapid light curve of Sophora moorcrofiana.

References:

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Last Update: 2019-06-11