Relationships between derivative spectra and agronomic parameters of corn

• DOI: 10.1117/12.558953
• Publication Date: 2004-11-16T00:03:54Z
• Authors: Qiuxiang Yi; Xiuzhen Wang; Jingfeng Huang; Yi Qian; Shanxian Yu
• Keywords: Red edge; Derivative (finance)

The objective of this paper is to discuss the action derivative spectra corn in determining spectral bands that are best suited for characterizing agronomic parameters. data study comes from filed and indoor reflectance measurements by a ASD FieldSpec Pro FR. Observed characteristics included leaf area index, aboveground fresh biomass chlorophyll concentration carotenoid concentration. shows can determine some characteristic wavelength eliminate influence soil background degree. Leaf above-ground biomass, were strongly correlative red edge parameters which derive (the position edgeλ_red, slope D_red S_red). A strong relationship with located specific narrow longer portion (710nm 740nm). concludes it feasible its