Near-infrared reflectance spectroscopy analytic model established for the IVDMD of Cichorium intybus L

Chicory (Cichorium intybus L.) is a new type of forage grasses of high yield and quality with a great value of popularization and utilization. In vitro dry matter digestibility (IVDMD) is one of the important indicators of the nutritional value of forage evaluation. For the study of establishment of...

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Published inGuang pu xue yu guang pu fen xi Vol. 34; no. 8; p. 2085
Main Authors Hu, Chao, Bai, Shi-qie, Zhang, Yu, Yan, Jia-jun, You, Ming-hong, Li, Da-xu, Bai, Ling, Zhang Jin
Format Journal Article
LanguageChinese
Published China 01.08.2014
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Summary:Chicory (Cichorium intybus L.) is a new type of forage grasses of high yield and quality with a great value of popularization and utilization. In vitro dry matter digestibility (IVDMD) is one of the important indicators of the nutritional value of forage evaluation. For the study of establishment of Chicory IVDMD NIRS quantitative analysis model, seventy-two species with different genotypes, different growth stages of 204 chicory samples of aboveground material were collected, and by Fourier transform near-infrared diffuse reflectance spectroscopy, through the use of different regression algorithms, can comparing different spectral ranges and spectral pretreatment methods, eight chicory IVDMD NIRS calibration models were established, and the best calibration model parameters were chosen. Its calibration coefficient of determination (Ri) and external validation coefficient of determination (Rval2) were 0.95317 and 0.90455, calibration standard deviation (RMSEC) and predictive standard deviation (RMSEP) was 1.9
ISSN:1000-0593