Abstract:In the present article, the measurement of intact wheat seeds’ protein content with near infrared reflentance spectroscopy(NIRS) was studied. The wavelength range of 1 100-2 498 nm was used. The distinguishability of NIRS machine was 2 nm. Firstly the representative wheat samples with different protein contents were selected and the original spectra of wheat were obtained using NIRS machine. Then through scatter correction and maths treatment, spectrum noise were decreased. Finally regression methods used multiple linear regression, principal component regression and modified partial least squares respectively. The result showed that after optimizing all the factors, the best calibration model of equation was chosen using “first derivative”+“Standard Multiplicative Scatter Correction, SMSC”+“Modified Partial Least Squares,MPLS”. RSQ, SECV and 1-VR of the obtained calibration model were 0.94, 0.42 and 0.87 respectively. A set of representative individual wheat samples were uesed to check the model, and prediction coefficient of determination was 0.88. Protein content of wheat could be preidicted quickly and scathelessly by using the NIRS measurement. It was feasible to be used in early generation selection in wheat quality breeding process.
王卫东,谷运红,秦广雍*,霍裕平 . 近红外漫反射光谱法测定整粒小麦单株蛋白质含量[J]. 光谱学与光谱分析, 2007, 27(04): 697-701.
WANG Wei-dong, GU Yun-hong, QIN Guang-yong*,HUO Yu-ping. Prediction of Protein Content of Intact Wheat Seeds with Near Infrared Reflectance Spectroscopy(NIRS). SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(04): 697-701.
[1] Mariani B M, D′Egidio M G, Novoro P. Cereal Chemistry, 1995, 72(2): 194. [2] Fabrizus M A, Cooper M, Basford K E. Australian Journalof Agriculture Research, 1997, 48(5): 605. [3] YAN Yan-lu, ZHAO Long-lian, LI Jun-hui(严衍禄,赵龙莲,李军会). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2000,20(6):777. [4] GAO Rong-qiang, FAN Shi-fu, YAN Yan-lu, et al(高荣强,范世福,严衍禄, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2004,24(12):1563. [5] ZHANG Lu-da, SHEN Xiao-nan, ZHAO Long-lian(张录达,沈晓南,赵龙莲). Chinese Journal of Analytical Chemical(分析化学),2000,28(6):723. [6] PENG Yu-kui, LI Ju-ying, QI Zhen-ying(彭玉魁,李菊英,祁振英). Tritical Crops(麦类作物学报), 1997,17(3):33. [7] CHEN Feng, HE Zhong-hu, CUI Dang-qun(陈 锋,何中虎,崔党群). Tritical Crops(麦类作物学报), 2003,23(3):1. [8] JI Hai-yan, WEN Ming, HAO Bin(吉海彦,闻 明,郝 斌). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2006,26(1):57.