Potential of Hyperspectral and Thermal Proximal Sensing for Estimating Growth Performance and Yield of Soybean Exposed to Different Drip Irrigation Regimes Under Arid Conditions.

Sensors
Adel H ElmetwalliSalah Elsayed

Abstract

Proximal hyperspectral sensing tools could complement and perhaps replace destructive traditional methods for accurate estimation and monitoring of various morpho-physiological plant indicators. In this study, we assessed the potential of thermal imaging (TI) criteria and spectral reflectance indices (SRIs) to monitor different vegetative growth traits (biomass fresh weight, biomass dry weight, and canopy water mass) and seed yield (SY) of soybean exposed to 100%, 75%, and 50% of estimated crop evapotranspiration (ETc). These different plant traits were evaluated and related to TI criteria and SRIs at the beginning bloom (R1) and full seed (R6) growth stages. Results showed that all plant traits, TI criteria, and SRIs presented significant variations (p < 0.05) among irrigation regimes at both growth stages. The performance of TI criteria and SRIs for assessment of vegetative growth traits and SY fluctuated when relationships were analyzed for each irrigation regime or growth stage separately or when the data of both conditions were combined together. TI criteria and SRIs exhibited a moderate to strong relationship with vegetative growth traits when data from different irrigation regimes were pooled together at each growth stag...Continue Reading

References

Nov 8, 2006·Journal of Experimental Botany·Elias Fereres, María Auxiliadora Soriano
Apr 10, 2012·International Journal of Remote Sensing·Loris VescovoDamiano Gianelle
Aug 11, 2017·The New Phytologist·Tal RapaportShimon Rachmilevitch
Jan 9, 2018·Journal of Experimental Botany·Viridiana Silva-PerezJohn R Evans
Feb 6, 2018·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Kanchan Jumrani, Virender Singh Bhatia
May 28, 2019·International Journal of Molecular Sciences·Muhammad NadeemLijuan Qiu

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