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Interaction of Light Intensity and CO2 Concentration Alters Biomass Partitioning in Chrysanthemum

Maral Hosseinzadeh

Maral Hosseinzadeh

Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of TehranIran
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Hosseinzadeh, Maral
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Sasan Aliniaeifard

Sasan Aliniaeifard

Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of TehranIran
Profilo Orcid
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Aliniaeifard, Sasan
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Aida Shomali

Aida Shomali

Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of TehranIran
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Shomali, Aida
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Fardad Didaran

Fardad Didaran

Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of TehranIran
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Didaran, Fardad
  
27 nov 2021
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Pubblicato online: 27 nov 2021
Pagine: 45 - 56
Ricevuto: 01 dic 2020
Accettato: 01 giu 2021
DOI: https://doi.org/10.2478/johr-2021-0015
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© 2021 Maral Hosseinzadeh et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Interaction effects of light intensity and concentration of CO2 on (A) DW of above-ground parts, (B) leaf DW, (C) total number of leaves, and (D) SLA of chrysanthemum. Plants were exposed to different concentrations of CO2 (400 ppm – black columns and 1,000 ppm – gray columns) and different light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD) Bars are mean value ± SEM and when the letters above the bars are similar, it means that they are not significantly different according to the ANOVA test at p ≤ 0.05; ANOVA – analysis of variance; DW – dry weight; PPFD – photosynthetic photon flux density; SLA – specific leaf area
Interaction effects of light intensity and concentration of CO2 on (A) DW of above-ground parts, (B) leaf DW, (C) total number of leaves, and (D) SLA of chrysanthemum. Plants were exposed to different concentrations of CO2 (400 ppm – black columns and 1,000 ppm – gray columns) and different light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD) Bars are mean value ± SEM and when the letters above the bars are similar, it means that they are not significantly different according to the ANOVA test at p ≤ 0.05; ANOVA – analysis of variance; DW – dry weight; PPFD – photosynthetic photon flux density; SLA – specific leaf area

Figure 2

Interaction effects of light intensity and concentration of CO2 on (A) root DW, (B) inflorescence DW, (C) number of inflorescences, and (D) the time of flowering of chrysanthemum. Plants were exposed to different concentrations of CO2 (400 ppm – black columns and 1,000 ppm – gray columns) and different light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1
Interaction effects of light intensity and concentration of CO2 on (A) root DW, (B) inflorescence DW, (C) number of inflorescences, and (D) the time of flowering of chrysanthemum. Plants were exposed to different concentrations of CO2 (400 ppm – black columns and 1,000 ppm – gray columns) and different light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1

Figure 3

Root system of chrysanthemum affected by light intensity and CO2 concentration. The plants were exposed to different concentrations of CO2 [400 ppm as ambient CO2 (a[CO2]) and 1,000 ppm as elevated CO2 (e[CO2])] and light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1
Root system of chrysanthemum affected by light intensity and CO2 concentration. The plants were exposed to different concentrations of CO2 [400 ppm as ambient CO2 (a[CO2]) and 1,000 ppm as elevated CO2 (e[CO2])] and light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1

Figure 4

Interaction effect of light intensity and concentration of CO2 on the flowering of chrysanthemum. Plants were exposed to different concentrations of CO2 [400 ppm as ambient CO2 (a[CO2]) and 1,000 ppm as elevated CO2 (e[CO2])] and light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1
Interaction effect of light intensity and concentration of CO2 on the flowering of chrysanthemum. Plants were exposed to different concentrations of CO2 [400 ppm as ambient CO2 (a[CO2]) and 1,000 ppm as elevated CO2 (e[CO2])] and light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1

Figure 5

Diminishing effect of elevated CO2 (calculated as reduction in biomass accumulation in plants under e[CO2] compared to a[CO2]) on total biomass of chrysanthemum plants grown under different light intensities
Diminishing effect of elevated CO2 (calculated as reduction in biomass accumulation in plants under e[CO2] compared to a[CO2]) on total biomass of chrysanthemum plants grown under different light intensities

Figure 6

Allocation of biomass (DW) to different organs in response to CO2 concentrations and light intensities. Plants were exposed to different concentrations of CO2 [400 ppm as ambient CO2 (a[CO2]) and 1,000 ppm as elevated CO2 (e[CO2])] and light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1
Allocation of biomass (DW) to different organs in response to CO2 concentrations and light intensities. Plants were exposed to different concentrations of CO2 [400 ppm as ambient CO2 (a[CO2]) and 1,000 ppm as elevated CO2 (e[CO2])] and light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1

Figure 7

Interaction effect of light intensity and concentration of CO2 on water use efficiency (WUE) of chrysanthemum. Plants were exposed to different concentration of CO2 (400 ppm – black columns and 1,000 ppm – gray columns) and different light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1
Interaction effect of light intensity and concentration of CO2 on water use efficiency (WUE) of chrysanthemum. Plants were exposed to different concentration of CO2 (400 ppm – black columns and 1,000 ppm – gray columns) and different light intensities (75, 150, 300, and 600 μmol·m−2·s−1 PPFD)Note: See Figure 1
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