Effects of elevated CO2 on grain yield and quality in five wheat cultivars
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Effects of elevated CO2 on grain yield and quality in five wheat cultivars. / Wang, Xizi; Li, Xiangnan; Zhong, Yuyue; Blennow, Andreas; Liang, Kehao; Liu, Fulai.
In: Journal of Agronomy and Crop Science, Vol. 208, No. 5, 2022, p. 733-745.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Effects of elevated CO2 on grain yield and quality in five wheat cultivars
AU - Wang, Xizi
AU - Li, Xiangnan
AU - Zhong, Yuyue
AU - Blennow, Andreas
AU - Liang, Kehao
AU - Liu, Fulai
PY - 2022
Y1 - 2022
N2 - Elevated atmospheric CO2 concentrations (e[CO2]) have a significant impact on plant physiology, grain yield and quality and the specific response of plants to e[CO2] is closely linked to cultivars. Here, five Chinese wheat (Triticum aestivum L.) cultivars were grown under ambient CO2 (a[CO2], 400 ppm) and e[CO2] (800 ppm). CO2 enrichment significantly increased net photosynthetic rate and water use efficiency but depressed stomatal conductance. e[CO2] increased the carbon (C) concentration but decreased the nitrogen (N) concentration in all five cultivars, whereas the effect of e[CO2] on grain yield was highly dependent on cultivar. Moreover, e[CO2] caused a significant reduction in grain minerals and protein, although the magnitude of reduction was different among these cultivars. The starch concentrations in the grains and flour viscosity were not significantly affected at e[CO2]. These findings improve our understanding of the interactive effect of CO2 conditions and cultivars on plant performances and provide a research basis to select suitable wheat cultivars to deal with food crisis in future climate.
AB - Elevated atmospheric CO2 concentrations (e[CO2]) have a significant impact on plant physiology, grain yield and quality and the specific response of plants to e[CO2] is closely linked to cultivars. Here, five Chinese wheat (Triticum aestivum L.) cultivars were grown under ambient CO2 (a[CO2], 400 ppm) and e[CO2] (800 ppm). CO2 enrichment significantly increased net photosynthetic rate and water use efficiency but depressed stomatal conductance. e[CO2] increased the carbon (C) concentration but decreased the nitrogen (N) concentration in all five cultivars, whereas the effect of e[CO2] on grain yield was highly dependent on cultivar. Moreover, e[CO2] caused a significant reduction in grain minerals and protein, although the magnitude of reduction was different among these cultivars. The starch concentrations in the grains and flour viscosity were not significantly affected at e[CO2]. These findings improve our understanding of the interactive effect of CO2 conditions and cultivars on plant performances and provide a research basis to select suitable wheat cultivars to deal with food crisis in future climate.
KW - biomass
KW - CO2 enrichment
KW - gas exchange
KW - ion accumulation
KW - protein
KW - starch
KW - CARBOHYDRATE-METABOLISM ENZYMES
KW - ATMOSPHERIC CO2
KW - CARBON-DIOXIDE
KW - RISING CO2
KW - NITRATE ASSIMILATION
KW - WATER-USE
KW - RESPONSES
KW - GROWTH
KW - PHOTOSYNTHESIS
KW - PHOTORESPIRATION
U2 - 10.1111/jac.12612
DO - 10.1111/jac.12612
M3 - Journal article
VL - 208
SP - 733
EP - 745
JO - Journal of Agronomy and Crop Science
JF - Journal of Agronomy and Crop Science
SN - 0931-2250
IS - 5
ER -
ID: 312338984