Publication
Title
Use of near infrared reflectance spectroscopy for the determination of silica content in tall fescue
Author
Abstract
Major disadvantages of using tall fescue as forage grass are its low digestibility and animal voluntary intake. One of the factors explaining this is the high silica content of tall fescue in comparison with other forage grass species. erefore, we evaluated the possibility to use NIRS on grass samples to predict the silica content. In 2014, we collected 297 samples on four di€erent trials with tall fescue. ese samples were analysed by wet chemistry for silica content, the NIRS spectra were recorded and a calibration model was built. In 2015, forage samples of 25 genotypes in a breeding nursery were collected and used for validation of the calibration equation. e mean silica content in this sample was 0.56% with a standard deviation of 0.14%. e validation statistics indicated that prediction of the silica content for this independent validation sample was good (SEP 0.063%; R2= 82.2%). e large variation in silica content found within the tall fescue genotypes and the ease of prediction using NIRS are a good basis for selecting tall fescue varieties with lower silica content.
Language
English
Source (book)
Grassland Science in Europe : 26th European Grassland Foundation general meeting (EGF 2016): the multiple roles of grassland in the European bioeconomy
Publication
2016
Volume/pages
21 (2016) , p. 197-199
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Record
Identifier
Creation 16.11.2016
Last edited 07.10.2022
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