Effect of CO&lt;sub&gt;2&lt;/sub&gt; Enrichment on Growth and Flowering of &lt;i&gt;Phalaenopsis&lt;/i&gt;

Kim, Hyun Jin; Cho, Ah Ram; Park, Kyoung Sub; Kim, Tae Young

doi:10.2503/hortj.okd-027

Cited by 12 publications

(8 citation statements)

References 23 publications

(29 reference statements)

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“…Flower spike length of Phalaenopsis Taisuco Kochdian increased with increasing K concentration to 400 mg•L -1 K, regardless of the medium (Wang, 2007). Flower spike length decreased with elevated atmospheric CO 2 concentrations of 800 -1,600 µmol•mol -1 ; however, it increased under 2,400 µmol•mol -1 CO 2 compared to those under ambient CO 2 level in Phalaenopsis 'Fuller's Pink Swallow' (Kim et al, 2017). Our study also revealed that the flower spike length with the effects of CO 2 treatment or EC was varied in phalaenopsis cultivars.…”

Section: Discussionmentioning

confidence: 86%

“…In our previous study, phalaenopsis exposed to an elevated CO2 level of 800 µmol•mol -1 had increased biomass production (Kim et al, 2017). Elevated CO 2 levels of either 800 or 1,200 µmol•mol -1 increased flower production in a shortened flowering time in phalaenopsis (Cho et al, 2019).…”

Section: Introductionmentioning

confidence: 75%

“…A CO 2 concentration of 1,600 -2,400 µmol•mol -1 enhances leaf growth and flowering characteristics, as seen with lateral branches and flower bud production in phalaenopsis (Kim et al, 2017). Flowering rate increased and was faster in the plants grown under the CO2 concentration of 800 -1,200 µmol•mol -1 with high light conditions during the flowering stages in phalaenopsis (Cho et al, 2019).…”

Section: Discussionmentioning

confidence: 92%

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Flowering and Photosynthetic Responses of Phalaenopsis under Elevated CO2 and Nutrient Supply

Cho,

Choi,

Kim

2020

HST

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The demand for phalaenopsis has been increasing in areas including Thailand, Japan, and the United States. Increasing atmospheric CO2 during the night improves the productivity and quality of phalaenopsis flowers. Because nutrient requirements change under conditions of elevated CO2, the interactive effects of CO 2 enrichment and nutrient supply require particular attention. Our study aimed to discover the effect of nutrient treatments on phalaenopsis using electrical conductivity (EC) when applying CO2 in the greenhouse. We investigated the flowering and photosynthetic responses of Phalaenopsis Queen Beer 'Mantefon' and 'Jupiter' in response to EC-based nutrients supplied with 1.0 (control) and 2.0 dS•m -1 and two levels of ambient and elevated CO2 (≈ 650 µmol•mol -1 CO2) for a period of 21 weeks of treatment (WOT). A longer first flower spike was produced in the plants exposed to EC 2.0 dS•m -1 than in those exposed to EC 1.0 dS•m -1 under elevated CO2, regardless of the phalaenopsis cultivar. Responses to CO2 and EC in the second flower spike length varied among phalaenopsis cultivars during 0 to 18 WOT; however, maximum second spike length was obtained with EC 2.0 dS•m -1 under elevated CO 2 at 21 WOT in 'Jupiter'. More visible flower buds and lateral branches were observed in plants exposed to EC 2.0 dS•m -1 under elevated CO2. The net CO2 assimilation rate showed significance with CO2 treatment, regardless of phalaenopsis cultivar. The most flowers were produced in the plants exposed to EC 2.0 dS•m -1 under ambient CO2 in both phalaenopsis cultivars, but water use efficiency, as well as potential yield, were the highest in plants exposed to EC 2.0 dS•m -1 under elevated CO2. We conclude that ≈ 650 µmol•mol -1 CO 2 increased the flowering quality of phalaenopsis and recommend adjusting the nutrient concentration with an EC of 2.0 dS•m -1.

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Section: Discussionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 75%

Section: Discussionmentioning

confidence: 92%

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Flowering and Photosynthetic Responses of Phalaenopsis under Elevated CO2 and Nutrient Supply

Cho,

Choi,

Kim

2020

HST

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“…However, the biomass of some plants, including A. comosus [36], slightly decreased in high CO 2 concentration environments, indicating that there are differences in adaptation between species. Kim et al [37] reported that Phalaenopsis "Fuller's Pink Swallow" did not show a significant difference in shoot biomass and dry weight when CO 2 concentration was increased from 450 to 800 ppm; root dry weight was also not different (1.92 g and 1.96 g, respectively).…”

Section: Growth Characteristicsmentioning

confidence: 98%

Effects of Light Condition on Growth and Physiological Characteristics of the Endangered Species Sedirea japonica under RCP 6.0 Climate Change Scenarios

Lee¹,

Hwang

et al. 2021

Plants

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This study was conducted to evaluate the physiological and growth responses of Sedirea japonica cultured in chambers under RCP 6.0 and different light conditions. S. japonica was grown in a soil–plant daylight system chamber under two treatments, a control (CO2 = 400 ppm) and a climate change treatment (CCT) (CO2 = 650 ppm, temperature = control + 3 °C), and three different shading treatments (60%, 90%, and no-shading). S. japonica showed the characteristics of typical Crassulacean acid metabolism (CAM) plants. As the shading rate increased, it increased chlorophyll content, leaf area, and leaf dry weight to efficiently absorb and use light. The CCT had a lower CO2 absorption rate, stomatal conductance, and growth rate and slightly higher water utilization efficiency than the control. This was because stomatal closure occurred in the CCT to reduce water loss due to a relatively higher temperature. As CO2 fixation decreased and consumption increased due to respiration, the overall growth was inhibited. The CCT without shading revealed a dynamic photoinhibition phenomenon showing a significant increase in ABS/RC, TRo/RC, ETo/RC, and DIo/RC and a decrease in PI ABS and DF ABS. In this group, leaf, root, and total dry weight, chlorophyll content, and carotenoid content were the worst growth indices.

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“…Fruiting at 100% was only shown in C3, while C1 and C2 showed only 80 and 20%, respectively (Figure 4F). In this regard, Kim et al [35] mention that Phalaenopsis plants exposed to over 800 µmol CO 2 mol −1 before flower spike induction had higher biomass production. However, they also mention flower production and the number of flower buds could be reduced in plants subjected to long CO 2 exposure.…”

Section: Flowering and Fruitingmentioning

confidence: 99%

High Temperature and Elevated CO2 Modify Phenology and Growth in Pepper Plants

et al. 2022

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The aim of this study was to determine the effect of temperature and CO2 on seed emergence, seedling quality, and phenological stage of Capsicum chinense and Capsicum annum cultivated in four controlled growth chambers (C1: 30 °C and 400 μmol CO2 mol−1; C2: 40 °C and 1200 μmol CO2 mol−1; C3: 30 °C and 1200 μmol CO2 mol−1; C4: 40 °C and 400 μmol CO2 mol−1). Neither temperature nor elevated CO2 influenced seed emergence, although differences were observed in seedling mortality, with high temperature affecting seedling survival in both species; the mortality rate at 40 °C was 20 and 53% in C. annuum and 45 and 58% in C. chinense at 400 and 1200 μmol CO2 mol−1, respectively. Differences were also observed in growth parameters, where positive effects were observed on leaf area, which reached 45.9 cm2 in C. annuum and 23.9 cm2 in C. chinense with elevated CO2 at 30 °C, but negative effects were observed with high temperature. CO2 enrichment increased flower and fruit production per plant. However, high temperature delayed flower phenology, increased flower abortion and inhibited fruit set. Elevated CO2 counteracted the detrimental effects of high temperature on growth parameters and flower number, but this was not sufficient to prevent flower abortion and the detrimental morphological characteristics of fruit caused by a temperature of 40 °C.

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Effect of CO<sub>2</sub> Enrichment on Growth and Flowering of <i>Phalaenopsis</i>

Abstract: To increase the photosynthesis of crop and improve plant quality, we evaluated the effect of elevated CO 2 on vegetative growth and flowering in Phalaenopsis 'Fuller's Pink Swallow'. Plants were exposed to 450 (control), 800, 1600, and 2400 μmol·mol

Cited by 12 publications

References 23 publications

Flowering and Photosynthetic Responses of Phalaenopsis under Elevated CO2 and Nutrient Supply

Flowering and Photosynthetic Responses of Phalaenopsis under Elevated CO2 and Nutrient Supply

Effects of Light Condition on Growth and Physiological Characteristics of the Endangered Species Sedirea japonica under RCP 6.0 Climate Change Scenarios

High Temperature and Elevated CO2 Modify Phenology and Growth in Pepper Plants

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