Comparative Study on Leaf Reflectance Spectrum Characteristics of Pepper,Rice,Tobacco

Key words: 
• leaf、spectral reflectance、pepper、rice、tobacco

Abstract: The spectral features of leaves from pepper ,rice and tobacco were studied at the resolution in 350~2 500 nm .Results show that ,according to the leaf spectral reflectance curves in 350~2 500 nm ,rice can easily be distinguished from pepper and tobacco ;pepper can be distinguished from tobacco only on the basis of the leaf spectral reflectance in 350~759 nm and 1 554~1 775 nm .Rice can be quickly identified according to one or all of Db ,λb ,Dy ,Dr ,λr ,ρg ,ρr ,RV I ,NDV I ,DV I ,NDV Ig and RV Ig .Pepper and tobacco can be identified only according to one or all of Db ,λr ,ρg ,ρr ,RV I , N DV Ig and RV Ig .