Using hyperspectral imaging to determine germination of native Australian plant seeds

Journal of Photochemistry and Photobiology. B, Biology
Christian NansenShane R Turner

Abstract

We investigated the ability to accurately and non-destructively determine the germination of three native Australian tree species, Acacia cowleana Tate (Fabaceae), Banksia prionotes L.F. (Proteaceae), and Corymbia calophylla (Lindl.) K.D. Hill & L.A.S. Johnson (Myrtaceae) based on hyperspectral imaging data. While similar studies have been conducted on agricultural and horticultural seeds, we are unaware of any published studies involving reflectance-based assessments of the germination of tree seeds. Hyperspectral imaging data (110 narrow spectral bands from 423.6nm to 878.9nm) were acquired of individual seeds after 0, 1, 2, 5, 10, 20, 30, and 50days of standardized rapid ageing. At each time point, seeds were subjected to hyperspectral imaging to obtain reflectance profiles from individual seeds. A standard germination test was performed, and we predicted that loss of germination was associated with a significant change in seed coat reflectance profiles. Forward linear discriminant analysis (LDA) was used to select the 10 spectral bands with the highest contribution to classifications of the three species. In all species, germination decreased from over 90% to below 20% in about 10-30days of experimental ageing. P50 values (...Continue Reading

References

Apr 23, 2011·Science·David J Merritt, Kingsley W Dixon
Aug 16, 2011·Analytical and Bioanalytical Chemistry·Cushla M McGoverinMarena Manley
Sep 22, 2011·Optics Express·Christian Nansen
Oct 29, 2013·Applied Spectroscopy·Christian NansenJose Roberto Parra

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Citations

Dec 15, 2015·Pest Management Science·Christian Nansen
Sep 14, 2016·Critical Reviews in Food Science and Nutrition·Kate SendinMarena Manley
Nov 28, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Lei FengYong He

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