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Drought effects on trait space of winter wheat are independent of land management.
Sun, Qing; Gilgen, Anna K; Wittwer, Raphaël; von Arx, Georg; van der Heijden, Marcel G A; Klaus, Valentin H; Buchmann, Nina.
Afiliación
  • Sun Q; Institute of Agricultural Sciences, ETH Zurich, 8092, Zurich, Switzerland.
  • Gilgen AK; Climate and Environmental Physics, Physics Institute, University of Bern, 3012, Bern, Switzerland.
  • Wittwer R; Oeschger Centre for Climate Change Research, University of Bern, 3012, Bern, Switzerland.
  • von Arx G; Institute of Agricultural Sciences, ETH Zurich, 8092, Zurich, Switzerland.
  • van der Heijden MGA; Research Division Agroecology and Environment, Plant-Soil-Interactions, Agroscope, Reckenholzstrasse 191, 8046, Zürich, Switzerland.
  • Klaus VH; Oeschger Centre for Climate Change Research, University of Bern, 3012, Bern, Switzerland.
  • Buchmann N; Swiss Federal Institute for Forest Snow and Landscape Research WSL, 8903, Birmensdorf, Switzerland.
New Phytol ; 243(2): 591-606, 2024 Jul.
Article en En | MEDLINE | ID: mdl-38785184
ABSTRACT
Investigating plant responses to climate change is key to develop suitable adaptation strategies. However, whether changes in land management can alleviate increasing drought threats to crops in the future is still unclear. We conducted a management × drought experiment with winter wheat (Triticum aestivum L.) to study plant water and vegetative traits in response to drought and management (conventional vs organic farming, with intensive vs conservation tillage). Water traits (root water uptake pattern, stem metaxylem area, leaf water potential, stomatal conductance) and vegetative traits (plant height, leaf area, leaf Chl content) were considered simultaneously to characterise the variability of multiple traits in a trait space, using principal component analysis. Management could not alleviate the drought impacts on plant water traits as it mainly affected vegetative traits, with yields ultimately being affected by both management and drought. Trait spaces were clearly separated between organic and conventional management as well as between drought and control conditions. Moreover, changes in trait space triggered by management and drought were independent from each other. Neither organic management nor conservation tillage eased drought impacts on winter wheat. Thus, our study raised concerns about the effectiveness of these management options as adaptation strategies to climate change.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Estaciones del Año / Triticum / Agua / Carácter Cuantitativo Heredable / Sequías Idioma: En Revista: New Phytol / New phytol. (Online) / New phytologist (Online) Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: Suiza

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Estaciones del Año / Triticum / Agua / Carácter Cuantitativo Heredable / Sequías Idioma: En Revista: New Phytol / New phytol. (Online) / New phytologist (Online) Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: Suiza