Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared Spectroscopy
Adoption of no-till systems in Eastern Washington has been slow due to the difficulty of managing wheat (<i>Triticum aestivum</i> L.) straw residue and the unknown decomposition potential of cultivars. We hypothesize that by analyzing wheat straw with near-infrared spectroscopy (NIRS), c...
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doaj-c3ad4cdbd84c4a50963959deb7c20b232021-04-02T05:42:05ZengMDPI AGAgronomy2073-43952019-08-019846210.3390/agronomy9080462agronomy9080462Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared SpectroscopyNathan S. Nielsen0Tami L. Stubbs1Kimberly A. Garland-Campbell2Arron H. Carter3Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99164-6420, USADepartment of Plant Pathology, Washington State University, Pullman, WA 99164-6430, USAWheat Health, Genetics and Quality Research Unit, United States Department of Agriculture, Agricultural Research Service, Pullman, WA 99164-6420, USADepartment of Crop and Soil Sciences, Washington State University, Pullman, WA 99164-6420, USAAdoption of no-till systems in Eastern Washington has been slow due to the difficulty of managing wheat (<i>Triticum aestivum</i> L.) straw residue and the unknown decomposition potential of cultivars. We hypothesize that by analyzing wheat straw with near-infrared spectroscopy (NIRS), calibration models can be developed to accurately predict fiber and chemical constituents of wheat, determining straw decomposition potential. Straw from a panel of 480 soft winter wheat cultivars adapted to the Pacific Northwest are analyzed for neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), cellulose, hemicellulose, carbon (C), and nitrogen (N). Using modified partial least squares regression and cross validation techniques, specific environment and broad-based NIRS models are calibrated and predictive ability is validated. <i>R</i><sup>2</sup><sub>cal</sub> values from broad models are better than the specific models, and are 0.85 (NDF), 0.86 (ADF), 0.65 (ADL), 0.88 (cellulose), 0.42 (hemicellulose), 0.67 (C), and 0.73 (N). The corresponding SEP values are 1.68% (NDF), 1.54% (ADF), 0.62% (ADL), 1.14% (cellulose), 1.11% (hemicellulose), 1.23% (C), and 0.06% (N). A Finch × Eltan breeding population is used to further validate models and prediction accuracies for variety selection within a breeding program scenario. The broad NIRS models prove useful for estimating high and low ranges of NDF, ADF, and cellulose in wheat cultivars which translate into characteristics of slow and fast decomposition potential.https://www.mdpi.com/2073-4395/9/8/462decompositionwheatstrawnear-infrared spectroscopyNIRSNDFADFADL |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nathan S. Nielsen Tami L. Stubbs Kimberly A. Garland-Campbell Arron H. Carter |
spellingShingle |
Nathan S. Nielsen Tami L. Stubbs Kimberly A. Garland-Campbell Arron H. Carter Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared Spectroscopy Agronomy decomposition wheat straw near-infrared spectroscopy NIRS NDF ADF ADL |
author_facet |
Nathan S. Nielsen Tami L. Stubbs Kimberly A. Garland-Campbell Arron H. Carter |
author_sort |
Nathan S. Nielsen |
title |
Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared Spectroscopy |
title_short |
Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared Spectroscopy |
title_full |
Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared Spectroscopy |
title_fullStr |
Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared Spectroscopy |
title_full_unstemmed |
Rapid Estimation of Wheat Straw Decomposition Constituents Using Near-Infrared Spectroscopy |
title_sort |
rapid estimation of wheat straw decomposition constituents using near-infrared spectroscopy |
publisher |
MDPI AG |
series |
Agronomy |
issn |
2073-4395 |
publishDate |
2019-08-01 |
description |
Adoption of no-till systems in Eastern Washington has been slow due to the difficulty of managing wheat (<i>Triticum aestivum</i> L.) straw residue and the unknown decomposition potential of cultivars. We hypothesize that by analyzing wheat straw with near-infrared spectroscopy (NIRS), calibration models can be developed to accurately predict fiber and chemical constituents of wheat, determining straw decomposition potential. Straw from a panel of 480 soft winter wheat cultivars adapted to the Pacific Northwest are analyzed for neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), cellulose, hemicellulose, carbon (C), and nitrogen (N). Using modified partial least squares regression and cross validation techniques, specific environment and broad-based NIRS models are calibrated and predictive ability is validated. <i>R</i><sup>2</sup><sub>cal</sub> values from broad models are better than the specific models, and are 0.85 (NDF), 0.86 (ADF), 0.65 (ADL), 0.88 (cellulose), 0.42 (hemicellulose), 0.67 (C), and 0.73 (N). The corresponding SEP values are 1.68% (NDF), 1.54% (ADF), 0.62% (ADL), 1.14% (cellulose), 1.11% (hemicellulose), 1.23% (C), and 0.06% (N). A Finch × Eltan breeding population is used to further validate models and prediction accuracies for variety selection within a breeding program scenario. The broad NIRS models prove useful for estimating high and low ranges of NDF, ADF, and cellulose in wheat cultivars which translate into characteristics of slow and fast decomposition potential. |
topic |
decomposition wheat straw near-infrared spectroscopy NIRS NDF ADF ADL |
url |
https://www.mdpi.com/2073-4395/9/8/462 |
work_keys_str_mv |
AT nathansnielsen rapidestimationofwheatstrawdecompositionconstituentsusingnearinfraredspectroscopy AT tamilstubbs rapidestimationofwheatstrawdecompositionconstituentsusingnearinfraredspectroscopy AT kimberlyagarlandcampbell rapidestimationofwheatstrawdecompositionconstituentsusingnearinfraredspectroscopy AT arronhcarter rapidestimationofwheatstrawdecompositionconstituentsusingnearinfraredspectroscopy |
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