Determination of water-soluble carbohydrates by near-infrared spectroscopy for canola, maize, and sorghum stem fractions

被引:0
|
作者
Goni, Agustina M. [1 ]
Fernandez, Javier A. [1 ,2 ]
Demarco, Paula A. [1 ,2 ]
Secchi, Mario A. [1 ]
Carcedo, Ana J. P. [1 ]
Ciampitti, Ignacio A. [1 ]
机构
[1] Kansas State Univ, Dept Agron, 1712 Claflin Rd, Manhattan, KS 66506 USA
[2] Univ Queensland, Brisbane, Qld 4072, Australia
关键词
Spectroscopy; Near-infrared; Carbohydrates; Phenotyping; Crops; NIR-SPECTROSCOPY; REFLECTANCE SPECTROSCOPY; WHEAT-STEM; ACCUMULATION; REMOBILIZATION; NITROGEN; YIELD;
D O I
10.1016/j.saa.2023.123320
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Near infrared spectroscopy (NIRS) was evaluated as a rapid and non-destructive method for determining the concentration of water-soluble carbohydrates (WSC) in stem fractions for winter canola (Brassica napus L.), maize (Zea mays L.) and sorghum (Sorghum bicolor L. Moench) crops. For each crop at different growth stages, stem WSC concentration was determined using NIRS, and benchmarked against the anthrone reagent method, chemical lab analysis. Partial least squares regression was implemented to associate the WSC predicted via NIRS relative to those obtained by laboratory analysis. Spectral regions between 1100 and 1480 nm were critical for WSC determination. The predictive models resulted in coefficient of determinations of 0.93, 0.94, and 0.95, and a Root Mean Square Error of prediction of 10, 20, and 17 for winter-canola, maize and sorghum crops, respectively. The NIRS spectroscopy is a reliable method for WSC determination in stem tissues on these major field crops.
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页数:6
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