Effects of two-generational heat stress exposure at the onset of seed maturation on seed yield and quality in Brassica napus L.

Almeida, Lethicia Magno Massuia de; Coulon, Mathias; Avice, Jean‐Christophe; Morvan‐Bertrand, Annette; Bessoule, Jean‐Jacques; Guédard, Marina Le; Kim, So Yeon; Niare, Alseny; Mollier, Alain; Bertin, Nadia; Brunel‐Muguet, Sophie

doi:10.1016/j.envexpbot.2022.104788

Cited by 2 publications

(1 citation statement)

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“…Crop production relates to welfare of global people (Piao et al, 2010;Zhao et al, 2017a). It has become a major issue to explore crop adaptation to changing environment, which guarantees food safety and socio-economic development (Zhao et al, 2017b;Magno Massuia de Almeida et al, 2022). In recent years, extreme events such as droughts and floods have occurred frequently and widely under intensive climate change (Han et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Response of summer maize growth to drought-flood abrupt alternation

Weng²,

Yan³

et al. 2023

Front. Earth Sci.

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Extreme events normally have negative effects on crop growth. Many studies have reported findings on drought and flood events, while only sparse studies have focused on new types of extreme events, such as drought-flood abrupt alternation (DFAA). We attempted to gain an insight on the effects of DFAA over two-year field experiment on biomass, grain yield and quality, then simulated the yield loss to DFAA in history and future in summer maize planting area in the Northern Anhui Plain. Results show that DFAA significantly reduced root biomass and shoot biomass by 77.1% and 60.1% compared with that in the control systems. The negative effect lasted until mature stage. The grain yield loss was 14.1%–38.4% in different DFAA treatments. The numerical simulation reveals that the average annual yield loss due to DFAA has been increasing in the Northern Anhui Plain, with 21.19%–30.98% during 1964–2017, 14.10%–33.40% during 2020–2050. The spatial distribution of yield loss changed as well. This study increases our knowledge of the effects of DFAA on crop production and highlights the need to consider the targeted countermeasures.

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