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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (5): 41-48.doi: 10.11707/j.1001-7488.20140506

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The Correlation between the Pigment Content and Reflectance Spectrum in Phyllostachys edulis Leaves Subjected to High Temperature

Xu Gaiping1, Wu Xingbo1, Liu Fang1, Wang Yukui2, Gao Yan1, Zuo Zhaojiang1, Wen Guosheng1, Zhang Rumin1   

  1. 1. The Nurturing Station for the State Key Laboratory of Subtropical Silviculture Zhejiang Agriculture and Forestry University Lin'an 311300;
    2. China National Bamboo Research Center Hangzhou 310012
  • Received:2013-03-11 Revised:2013-11-15 Online:2014-05-25 Published:2014-06-06
  • Contact: 张汝民

Abstract:

In order to investigate the relationship between the reflection spectral characteristic and the pigment content of Phyllostachys edulis leaves under the high temperature stress, we measured on the determination to the pigment content and the reflection spectrum of the leaves from the 3-years-old potted seedlings of P. edulis subiected to 25 ℃ (CK), 35 ℃, 40 ℃ and 45 ℃ treatments. The relationship between the spectral reflectivity, the first derivative spectrum, and the spectrum parameters were analyzed using the SPSS 13.0 and the OriginPro 8.0 software, respectively. Results showed that: with the increased of temperature, the contents of chlorophyll a, chlorophyll b and carotenoids in the P. edulis leaves decreased, the value of the reflectance spectrum parameters (SR705, PSSRa, PSSRb, rNDVI, mND, PSNDa, RARSb and Mcri) also decreased; The red-edge area (Sred) decreased with the enhancement of the temperature stress level, and the position of red-edge inflection (λred) moved to the short-wave direction. There were significant correlations between the content of chlorophyll a, chlorophyll b and carotenoids in the leaves and reflectance spectra characteristics, first derivative of reflectance spectra at the wavelength regions of blue edge and red edge. Moreover, the correlations were extremely significant between pigment contents and almost all spectral characteristic parameters. These reflectance spectrum parameters can be used to evaluate the content of theleaf pigment, and the damage degree of P. edulis by high temperature.

Key words: Phyllostachys edulis, pigment, high temperature stress, reflectance spectrum

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