TITLE:
Research on Light Response Curve Fitting Model of Four Chamaenerion Plants on the Serzilla Mountains
AUTHORS:
Lusheng Wan, Zhen Xing, Xinyue Chang, Jiang Liu, Guorong Zhang
KEYWORDS:
Alpine Plant, Chamaenerion, Optical Response Curve, Right Angle Hyperbolic Correction Model
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.9 No.8,
July
12,
2018
ABSTRACT: In
order to study the applicability of different light response models to the
photoresponse curves of four species of Chamaenerion, four species of Chamaenerion
collected from Serzilla were used as test materials. Four common photosynthetic
models were used to fit the photosynthetic response curve of the leaves. The results show that: 1) The effect of different photosynthetic response
models on photosynthetic response curve of the genus chromasia was different.
The fitted value of the correction model of right angled hyperbola was closest
to the measured value, the R2 was 0.998, and RE was 0.216. 2) In terms of fitting the photosynthetic parameters,
the initial quantum efficiency, light compensation point and dark respiration
rate were suitable for fitting with non-right angle hyperbolic model. In terms of fitting the photosynthetic parameters,
the initial quantum efficiency, light compensation point and dark respiration
rate were suitable for fitting with non-right angle hyperbolic model. 3) The photosynthetic characteristics of C. angustifolium subsp.
circumvagum reflect the negative response to high altitude radiation. Under strong
radiation, the photosynthetic rate, apparent quantum efficiency, and light
saturation point are low. On the other hand, C. conspersum has a
positive response to high altitude radiation. C. angustifolium and C. latifolium has a
higher light compensation point and higher light saturation point, but it is
also positive for high altitude radiation. The response is only a choice of
light intensity at different elevations, which also explains the distribution
of C. angustifolium and C. latifolium in the
salmonella with a single elevation, habitat, and slope.