Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat

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Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat. / Li, Xiangnan; Kristiansen, Karina; Rosenqvist, Eva; Liu, Fulai.

In: Journal of Agronomy and Crop Science, Vol. 205, No. 4, 08.2019, p. 362-371.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

Li, X, Kristiansen, K, Rosenqvist, E & Liu, F 2019, 'Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat', Journal of Agronomy and Crop Science, vol. 205, no. 4, pp. 362-371. https://doi.org/10.1111/jac.12330

APA

Li, X., Kristiansen, K., Rosenqvist, E., & Liu, F. (2019). Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat. Journal of Agronomy and Crop Science, 205(4), 362-371. https://doi.org/10.1111/jac.12330

Vancouver

Li X, Kristiansen K, Rosenqvist E, Liu F. Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat. Journal of Agronomy and Crop Science. 2019 Aug;205(4):362-371. https://doi.org/10.1111/jac.12330

Author

Li, Xiangnan ; Kristiansen, Karina ; Rosenqvist, Eva ; Liu, Fulai. / Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat. In: Journal of Agronomy and Crop Science. 2019 ; Vol. 205, No. 4. pp. 362-371.

Bibtex

@article{529674ae20e84ce295d5b626530adc6c,
title = "Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat",
abstract = "To investigate the interactive effects of drought, heat and elevated atmospheric CO2 concentration ([CO2]) on plant water relations and grain yield in wheat, two wheat cultivars with different drought tolerance (Gladius and Paragon) were grown under ambient and elevated [CO2], and were exposed to post-anthesis drought and heat stress. The stomatal conductance, plant water relation parameters, abscisic acid concentration in leaf and spike, and grain yield components were examined. Both stress treatments and elevated [CO2] reduced the stomatal conductance, which resulted in lower leaf relative water content and leaf water potential. Drought induced a significant increase in leaf and spike abscisic acid concentrations, while elevated [CO2] showed no effect. At maturity, post-anthesis drought and heat stress significantly decreased the grain yield by 21.3{\%}–65.2{\%}, while elevated [CO2] increased the grain yield by 20.8{\%} in wheat, which was due to the changes of grain number per spike and thousand grain weight. This study suggested that the responses of plant water status and grain yield to extreme climatic events (heat and drought) can be influenced by the atmospheric CO2 concentration.",
keywords = "abscisic acid, CO, drought, high temperature, water status, wheat",
author = "Xiangnan Li and Karina Kristiansen and Eva Rosenqvist and Fulai Liu",
year = "2019",
month = "8",
doi = "10.1111/jac.12330",
language = "English",
volume = "205",
pages = "362--371",
journal = "Journal of Agronomy and Crop Science",
issn = "0931-2250",
publisher = "Wiley-Blackwell",
number = "4",

}

RIS

TY - JOUR

T1 - Elevated CO2 modulates the effects of drought and heat stress on plant water relations and grain yield in wheat

AU - Li, Xiangnan

AU - Kristiansen, Karina

AU - Rosenqvist, Eva

AU - Liu, Fulai

PY - 2019/8

Y1 - 2019/8

N2 - To investigate the interactive effects of drought, heat and elevated atmospheric CO2 concentration ([CO2]) on plant water relations and grain yield in wheat, two wheat cultivars with different drought tolerance (Gladius and Paragon) were grown under ambient and elevated [CO2], and were exposed to post-anthesis drought and heat stress. The stomatal conductance, plant water relation parameters, abscisic acid concentration in leaf and spike, and grain yield components were examined. Both stress treatments and elevated [CO2] reduced the stomatal conductance, which resulted in lower leaf relative water content and leaf water potential. Drought induced a significant increase in leaf and spike abscisic acid concentrations, while elevated [CO2] showed no effect. At maturity, post-anthesis drought and heat stress significantly decreased the grain yield by 21.3%–65.2%, while elevated [CO2] increased the grain yield by 20.8% in wheat, which was due to the changes of grain number per spike and thousand grain weight. This study suggested that the responses of plant water status and grain yield to extreme climatic events (heat and drought) can be influenced by the atmospheric CO2 concentration.

AB - To investigate the interactive effects of drought, heat and elevated atmospheric CO2 concentration ([CO2]) on plant water relations and grain yield in wheat, two wheat cultivars with different drought tolerance (Gladius and Paragon) were grown under ambient and elevated [CO2], and were exposed to post-anthesis drought and heat stress. The stomatal conductance, plant water relation parameters, abscisic acid concentration in leaf and spike, and grain yield components were examined. Both stress treatments and elevated [CO2] reduced the stomatal conductance, which resulted in lower leaf relative water content and leaf water potential. Drought induced a significant increase in leaf and spike abscisic acid concentrations, while elevated [CO2] showed no effect. At maturity, post-anthesis drought and heat stress significantly decreased the grain yield by 21.3%–65.2%, while elevated [CO2] increased the grain yield by 20.8% in wheat, which was due to the changes of grain number per spike and thousand grain weight. This study suggested that the responses of plant water status and grain yield to extreme climatic events (heat and drought) can be influenced by the atmospheric CO2 concentration.

KW - abscisic acid

KW - CO

KW - drought

KW - high temperature

KW - water status

KW - wheat

UR - http://www.scopus.com/inward/record.url?scp=85060916642&partnerID=8YFLogxK

U2 - 10.1111/jac.12330

DO - 10.1111/jac.12330

M3 - Journal article

AN - SCOPUS:85060916642

VL - 205

SP - 362

EP - 371

JO - Journal of Agronomy and Crop Science

JF - Journal of Agronomy and Crop Science

SN - 0931-2250

IS - 4

ER -

ID: 216212679