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Cited by 308

The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.

High-Throughput Phenotyping of Maize Leaf Physiological and Biochemical Traits Using Hyperspectral Reflectance

Open access
Yendrek, Craig R., Tomaz, Tiago, Montes, Christopher M., Cao, Youyuan, Morse, Alison M., Brown, Patrick J., McIntyre, Lauren M., Leakey, Andrew D.B., Ainsworth, Elizabeth A.·2017·Plant Physiology

Abstract

High-throughput, noninvasive field phenotyping has revealed genetic variation in crop morphological, developmental, and agronomic traits, but rapid measurements of the underlying physiological and biochemical traits are needed to fully understand genetic variation in plant-environment interactions. This study tested the application of leaf hyperspectral reflectance (λ = 500–2,400 nm) as a high-throughput phenotyping approach for rapid and accurate assessment of leaf photosynthetic and biochemical traits in maize (Zea mays). Leaf traits were measured with standard wet-laboratory and gas-exchange approaches alongside measurements of leaf reflectance. Partial least-squares regression was used to develop a measure of leaf chlorophyll content, nitrogen content, sucrose content, specific leaf area, maximum rate of phosphoenolpyruvate carboxylation, [CO2]-saturated rate of photosynthesis, and leaf oxygen radical absorbance capacity from leaf reflectance spectra. Partial least-squares regression models accurately predicted five out of seven traits and were more accurate than previously used simple spectral indices for leaf chlorophyll, nitrogen content, and specific leaf area. Correlations among leaf traits and statistical inferences about differences among genotypes and treatments were similar for measured and modeled data. The hyperspectral reflectance approach to phenotyping was dramatically faster than traditional measurements, enabling over 1,000 rows to be phenotyped during midday hours over just 2 to 4 d, and offers a nondestructive method to accurately assess physiological and biochemical trait responses to environmental stress.

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Crossref · 10.1104/pp.16.01447

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Metadata

Authors
Yendrek, C. R., Tomaz, T., Montes, C. M., Cao, Y., Morse, A. M., Brown, P. J., McIntyre, L. M., Leakey, A. D. B., & Ainsworth, E. A.
Venue
Plant Physiology
Published
2016-11-15
Volume
173
Issue
1
Pages
614-626
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
OpenAlex
W2567154847
Cited by
308
References
59
FWCI
16.47
Type
journal article
Language
en
Open access
hybrid

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