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

Maral Hosseinzadeh
Maral Hosseinzadeh
, 
Sasan Aliniaeifard
Sasan Aliniaeifard
, 
Aida Shomali
Aida Shomali
 and 
Fardad Didaran
Fardad Didaran
   | Nov 27, 2021
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Published Online: Nov 27, 2021
Page range: 45 - 56
Received: Dec 01, 2020
Accepted: Jun 01, 2021
DOI: https://doi.org/10.2478/johr-2021-0015
Keywords
© 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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