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Phenotyping Drought Tolerance and Yield Performance of Barley Using a Combination of Imaging Methods by Hana Findurová; Barbora Veselá; Klára Panzarová; Jaromír Pytela; Martin Trtílek; Karel Klem is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Phenotyping Drought Tolerance and Yield Performance of Barley Using a Combination of Imaging Methods about?

Drought resistance represents a complex of traits that are differently employed depending on drought type, severity and timing. Hence, a relatively comprehensive assessment of morphological and physiological phenotypic response to drought is required. We evaluated the dynamic responses of six barley genotypes, representing a wide range of drought tolerance, to continuous drying and re-watering using non-invasively measured parameters based on red-green-blue (RGB), thermal infrared and chlorophyll fluorescence imaging within an automated phenotyping platform. We identified three critical points in drought progress: i) 50% level of available soil water, ii) wilting point, iii) full plant recovery after re-watering. However, the individual monitored parameters showed the potential to evaluate drought sensitivity at different points since the onset of drying. The correlation with relative yield response gradually increased for the side projected leaf area (SPA) and reached the maximum at the point of full recovery. The actual quantum yield of photosystem II (ΦPSII) showed the highest correlation with a relative grain yield around wilting point. In contrast, the relative leaf temperatur

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Author

Hana Findurová; Barbora Veselá; Klára Panzarová; Jaromír Pytela; Martin Trtílek; Karel Klem

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)