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Effects of Cuprum Stress on Position of Red Edge of Maize Leaf Reflection Hyperspectra and Relations to Chlorophyll Content
Li Yuan-xi1,3,5; Chen Xi-yun1,2; Luo Da1,4,5; Li Bo-ying1; Wang Shu-ren1; Zhang Li-wei1
2018-02-01
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
Volume38Issue:2Pages:546-551
Corresponding AuthorChen Xi-yun(chen.xiyun@bnu.edu.cn)
AbstractThe effects of Cuprum stress on reflectance spectra and chlorophyll content of maize leaves were studied by corn planting under 5 different Cu2+ concentration treatment. During the indoor experiment, hyperspectral reflectance and the corresponding contents of chlorophyll of leaves of maize seedling were measured and their changing trends and relationships between Cu2+ concentration, chlorophyll content and red edge position (wavelength of reflection spectra) were analyzed. Results showed that the corn leaf reflection spectra had the obvious "blue shift of red edge" phenomenon, namely the red edge position of leaf spectra moved to short wave. The red edge position significantly correlated to Cuprum concentration (R = 0.76), i.e. the blue shift of red edge increased with Cuprum concentration. In the meanwhile red edge blue-shifts increased with the extension of stress time. The chlorophyll a, chlorophyll b content and their ratio (Chla/Chlb) were significantly different between the five stress treatments (p=0. 002, 0. 007, 0. 001). The content of chlorophyll covaried with Chla/Chlb. At the same time, Chla/Chlb and the concentration of Cuprum in the culture solution showed negative and significant correlation (r = 0. 898), whilst, Chla/Chlb was significant and positively correlated with the mean red edge position (r = 0. 814). These results indicated that the blue shift of red edge of the reflectance spectra in the leaves of maize caused by Cuprum stress should attributed to the increase of chlorophyll b relative to chlorophyll a, which changed the leaf absorption spectrum and altered the red edge position of leaf reflectance.
KeywordCuprum concentration Maize Reflection hyperspectra Blue shift of red edge Chlorophyll
DOI10.3964/j.issn.1000-0593(2018)02-0546-06
WOS KeywordHEAVY-METALS ; PLANT ; LEAVES
Indexed BySCI
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000426142100034
PublisherOFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/57077
Collection中国科学院地理科学与资源研究所
Corresponding AuthorChen Xi-yun
Affiliation1.Beijing Normal Univ, Fac Geog, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
2.Beijing Key Lab Environm Remote Sensing & Digital, Beijing 100875, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li Yuan-xi,Chen Xi-yun,Luo Da,et al. Effects of Cuprum Stress on Position of Red Edge of Maize Leaf Reflection Hyperspectra and Relations to Chlorophyll Content[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2018,38(2):546-551.
APA Li Yuan-xi,Chen Xi-yun,Luo Da,Li Bo-ying,Wang Shu-ren,&Zhang Li-wei.(2018).Effects of Cuprum Stress on Position of Red Edge of Maize Leaf Reflection Hyperspectra and Relations to Chlorophyll Content.SPECTROSCOPY AND SPECTRAL ANALYSIS,38(2),546-551.
MLA Li Yuan-xi,et al."Effects of Cuprum Stress on Position of Red Edge of Maize Leaf Reflection Hyperspectra and Relations to Chlorophyll Content".SPECTROSCOPY AND SPECTRAL ANALYSIS 38.2(2018):546-551.
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