TY  - JOUR
AU  - Zendonadi dos Santos, Nícolas
AU  - Piepho, Hans-Peter
AU  - Condorelli, Giuseppe Emanuele
AU  - Licieri Groli, Eder
AU  - Newcomb, Maria
AU  - Ward, Richard
AU  - Tuberosa, Roberto
AU  - Maccaferri, Marco
AU  - Fiorani, Fabio
AU  - Rascher, Uwe
AU  - Muller, Onno
TI  - High‐throughput field phenotyping reveals genetic variation in photosynthetic traits in durum wheat under drought
JO  - Plant, cell & environment
VL  - 44
IS  - 9
SN  - 1365-3040
CY  - Oxford [u.a.]
PB  - Wiley-Blackwell
M1  - FZJ-2021-03129
SP  - 2858-2878
PY  - 2021
AB  - Chlorophyll fluorescence (ChlF) is a powerful non-invasive technique for probing photosynthesis. Although proposed as a method for drought tolerance screening, ChlF has not yet been fully adopted in physiological breeding, mainly due to limitations in high-throughput field phenotyping capabilities. The light-induced fluorescence transient (LIFT) sensor has recently been shown to reliably provide active ChlF data for rapid and remote characterisation of plant photosynthetic performance. We used the LIFT sensor to quantify photosynthesis traits across time in a large panel of durum wheat genotypes subjected to a progressive drought in replicated field trials over two growing seasons. The photosynthetic performance was measured at the canopy level by means of the operating efficiency of Photosystem II (urn:x-wiley:01407791:media:pce14136:pce14136-math-0072) and the kinetics of electron transport measured by reoxidation rates (urn:x-wiley:01407791:media:pce14136:pce14136-math-0073 and urn:x-wiley:01407791:media:pce14136:pce14136-math-0074). Short- and long-term changes in ChlF traits were found in response to soil water availability and due to interactions with weather fluctuations. In mild drought, urn:x-wiley:01407791:media:pce14136:pce14136-math-0075 and urn:x-wiley:01407791:media:pce14136:pce14136-math-0076 were little affected, while urn:x-wiley:01407791:media:pce14136:pce14136-math-0077 was consistently accelerated in water-limited compared to well-watered plants, increasingly so with rising vapour pressure deficit. This high-throughput approach allowed assessment of the native genetic diversity in ChlF traits while considering the diurnal dynamics of photosynthesis.
LB  - PUB:(DE-HGF)16
C6  - pmid:34189744
UR  - <Go to ISI:>//WOS:000671547500001
DO  - DOI:10.1111/pce.14136
UR  - https://juser.fz-juelich.de/record/894254
ER  -