[Fu Xiang-jin; Li Zhong-hai; Li Juan] Cent S Univ Forestry & Technol, Hunan Prov Key Lab Deeply Proc & Qual Control Cer, Changsha 410004, Hunan, Peoples R China.
[Fu Xiang-jin; Li Zhong-hai; Li Juan] Cent S Univ Forestry & Technol, Coll Food Sci & Engn, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Li Zhong-hai] C
Cent S Univ Forestry & Technol, Hunan Prov Key Lab Deeply Proc & Qual Control Cer, Changsha 410004, Hunan, Peoples R China.
A prediction model of paddy storage time was established based on near infrared reflectance(NIRS)and chemometrics. A spectroradiometer was used for collecting spectra in the wavelength range from 950 to 1 650 nm. The NIR spectra were collected from 90 samples of paddy. The best pretreatment method was obtained while choosing the total spectra area combined with PLS using the UNSCRAMBLER 9.7. The best pretreatment method is first derivative combined with S. Golay, and the number of principal components is 7. The model is feasible, because the r2 is 0.967 9, RMSEP is 54.51 and the result of T-te...
