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Near Infrared Spectroscopy as non-destructive method for sorting viable, petrified and empty seeds of Larix sibirica

Farhadi, Mostafa and Tigabu, Mulualem and Oden, Per Christer (2015). Near Infrared Spectroscopy as non-destructive method for sorting viable, petrified and empty seeds of Larix sibirica. Silva Fennica. 49:5, 1-12
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Abstract

Larix sibirica Ledeb. is one of the promising timber species for planting in the boreal ecosystem; but poor seed lot quality is the major hurdle for production of sufficient quantity of planting stocks. Here, we evaluated the potential of Near Infrared (NIR) Spectroscopy for sorting viable and non-viable seeds, as the conventional sorting technique is inefficient. NIR reflectance spectra were collected from single seeds, and discriminant models were developed with Orthogonal Projections to Latent Structure - Discriminant Analysis (OPLS-DA). The computed model predicted the class membership of filled-viable, empty and petrified seeds in the test set with 98%, 82% and 87% accuracy, respectively. When two-class OPLS-DA model was fitted to discriminate viable and non-viable (empty and petrified seeds combined), the predicted class membership of test set samples was 100% for both classes. The origins of spectral differences between non-viable (petrified and empty) and viable seeds were attributed to differences in seed moisture content and storage reserves. In conclusion, the result provides evidence that NIR spectroscopy is a powerful non-destructive method for sorting non-viable seeds of Larix sibirica; thus efforts should be made to develop on-line sorting system for large-scale seed handling.

Authors/Creators:Farhadi, Mostafa and Tigabu, Mulualem and Oden, Per Christer
Title:Near Infrared Spectroscopy as non-destructive method for sorting viable, petrified and empty seeds of Larix sibirica
Series/Journal:Silva Fennica (0037-5330)
Year of publishing :2015
Volume:49
Number:5
Page range:1-12
Number of Pages:12
Publisher:The Finnish Society of Forest Science
ISSN:0037-5330
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:larch, NIRS, OPLS, precision sowing, seed sorting, seed quality
URN:NBN:urn:nbn:se:slu:epsilon-e-3367
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3367
Additional ID:
Type of IDID
Web of Science (WoS)000365778800005
DOI10.14214/sf.1340
ID Code:13200
Faculty:S - Faculty of Forest Sciences
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: SLUpub Connector
Deposited On:07 Apr 2016 08:58
Metadata Last Modified:08 Sep 2017 11:34

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