Study on Hyperspectral Estimation of Pigment Contents in Leaves of Cotton Under Disease Stress

doi:10.3964/j.issn.1000-0593(2010)02-0421-05

CORC > 中国农业科学院 > 作物科学研究所

	Study on Hyperspectral Estimation of Pigment Contents in Leaves of Cotton Under Disease Stress
	Chen Bing 1,2; Li Shao-kun 1,2; Wang Ke-ru 1,2; Wang Fang-yong 1,2; Xiao Chun-hua 1; Pan Wen-chao 1
刊名	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2010
卷号	30 期号:2 页码:421-425
关键词	Cotton Disease stress Hyperspectra Pigment contents Estimation models
ISSN号	1000-0593
DOI	10.3964/j.issn.1000-0593(2010)02-0421-05
通讯作者	Chen Bing
英文摘要	The spectrum reflectance and pigment contents of cotton leaves infected with Verticillium wilt were measured in cotton disease nursery and field in different growth phases, and severity level of Verticillium wilt was investigated. The correlation between pigment contents of cotton leaves with Verticillium wilt and spectra reflectance, the first derivative of reflectance and spectral characteristic parameters were analyzed respectively. The estimation models about leaves pigment contents of disease cotton were established and tested. The results indicated that the correlations were best significant between chlorophyll a, b and a+b contents of leaves and spectral reflectance in visible wave bands, the first derivative spectrum at the wavelength regions of blue edge, yellow edge and red edge, and all spectral characteristic parameters (excluding red edge swing Dr). The models of transformed chlorophyll absorption in reflectance index (TCAR) and the new model of normalized difference vegetation index (NDVI [702,758]) had best estimated precision, and the relative errors were in average within 1. 3%. Given that the model of NDVI [702,758] is very simple and practical, it was commended as a best model to estimate chlorophyll a, b and a+b contents of disease cotton. This study shows that leaves hyperspectra. data can be used to estimate the pigment contents of cotton leaves quantitatively. This conclusion has also great practice and application value for monitoring the growth state and disease influence evaluation on cotton by using hyperspectral remote sensing.
学科主题	Spectroscopy ; SPECTROSCOPY
语种	中文
出版者	OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
WOS记录号	WOS:000274321800030
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5446]
专题	作物科学研究所
作者单位	1.Shihezi Univ, Key Lab Oasis Ecol Agr Xinjiang Corps, Shihezi 832003, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Chen Bing,Li Shao-kun,Wang Ke-ru,et al. Study on Hyperspectral Estimation of Pigment Contents in Leaves of Cotton Under Disease Stress[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2010,30(2):421-425.
APA	Chen Bing,Li Shao-kun,Wang Ke-ru,Wang Fang-yong,Xiao Chun-hua,&Pan Wen-chao.(2010).Study on Hyperspectral Estimation of Pigment Contents in Leaves of Cotton Under Disease Stress.SPECTROSCOPY AND SPECTRAL ANALYSIS,30(2),421-425.
MLA	Chen Bing,et al."Study on Hyperspectral Estimation of Pigment Contents in Leaves of Cotton Under Disease Stress".SPECTROSCOPY AND SPECTRAL ANALYSIS 30.2(2010):421-425.