期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-7/C50
出版社：Copernicus Publications
摘要：Evaluation of new agricultural cultivars developed by plant breeders is a long and expansive process. Traditional methods based on field measurements over series of micro-plots are very time-consuming and costly, preventing from access to the dynamic on some variables such as LAI or chlorophyll content which provides key information on crop functioning. Remote sensing observations offer great potential for characterizing specificities of each cultivar within agronomical trials, helping the final screening stage of plant selection. However, differences in canopy structure of leaf optical properties may confound relationships between canopy biophysical variables and radiometric measurements. The present study aims at quantifying differences in radiometric signatures between cultivars, and investigating how these differences may impact the estimation of biophysical variables such as LAI, chlorophyll content or nitrogen content
