Journal Article

FZJ-2021-06072

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Drought affects the rate and duration of organ growth but not inter-organ growth coordination

Verbraeken, L. ; Wuyts, N.FZJ* ; Mertens, S. ; Cannoot, B. ; Maleux, K. ; Demuynck, K. ; De Block, J. ; Merchie, J. ; Dhondt, S. ; Bonaventure, G. ; Crafts-Brandner, S. ; Vogel, J. ; Bruce, W. ; Inzé, D. ; Maere, S. ; Nelissen, H. (Corresponding author)

2021
Soc. Rockville, Md.

This record in other databases:      

Please use a persistent id in citations: doi:10.1093/plphys/kiab155

Abstract: Drought at flowering and grain filling greatly reduces maize (Zea mays) yield. Climate change is causing earlier and longer-lasting periods of drought, which affect the growth of multiple maize organs throughout development. To study how long periods of water deficit impact the dynamic nature of growth, and to determine how these relate to reproductive drought, we employed a high-throughput phenotyping platform featuring precise irrigation, imaging systems, and image-based biomass estimations. Prolonged drought resulted in a reduction of growth rate of individual organs—though an extension of growth duration partially compensated for this—culminating in lower biomass and delayed flowering. However, long periods of drought did not affect the highly organized succession of maximal growth rates of the distinct organs, i.e. leaves, stems, and ears. Two drought treatments negatively affected distinct seed yield components: Prolonged drought mainly reduced the number of spikelets, and drought during the reproductive period increased the anthesis-silking interval. The identification of these divergent biomass and yield components, which were affected by the shift in duration and intensity of drought, will facilitate trait-specific breeding toward future climate-resilient crops.

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Contributing Institute(s):

1. Pflanzenwissenschaften (IBG-2)

Research Program(s):

1. 2171 - Biological and environmental resources for sustainable use (POF4-217) (POF4-217)

Appears in the scientific report 2021

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Database coverage:
; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; National-Konsortium ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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