Effects of Sources and Quality of LED Light on Response of &lt;i&gt;Lycium chinense&lt;/i&gt; of Photosynthetic Rate, Transpiration Rate, and Water Use Efficiency in the Smart Farm

Lee, Seungyeon; Hong, Yong-Sik; Lee, Eung-Pill; Han, Young-Sub; Kim, Eui Joo; Park, Jaehoon; Lee, Sooin; Jung, Young‐Ho; You, Young-Han

doi:10.11614/ksl.2019.52.2.171

Cited by 5 publications

(5 citation statements)

References 19 publications

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“…Statistical tests to compare among the light conditions for the Pn of E. japonicum and the number of leaves with M. persicae were performed using the one-way ANOVA test (p�0.05), and Six taxa of leafy vegetables [39] Lycium chinense [40] 1 Represents 1:1, 5:1 and 10:1 of light irradiation time ratios of red:blue mixed light.…”

Section: Discussionmentioning

confidence: 99%

“…The size of each chamber positioned in the smart farm was 120 cm (W) × 52 cm (L) × 41.5 cm (H), and their walls were painted white to increase the light reflectance (Fig 1). In order to observe the aphid proliferation response according to light quality, different ratios of red (R, 660 nm) and blue (B, 450 nm) light efficient for plant photosynthesis was used for examining light quality inside the smart farm by controlling irradiation time of them [22,[35][36][37][38][39][40]. The irradiation time rates of R and B lights in the LED panels were set to 1:1, 5:1, and 10:1 (Table 1).…”

Section: Plant Cultivation and Smart Farm Environment Treatmentmentioning

confidence: 99%

“…The Pn of plants can be affected by the ratio of red to blue light [38][39][40], and plants respond to herbivory through photosynthetic products [52]. Plant Pn is influenced by various physiological variables.…”

Section: Plos Onementioning

confidence: 99%

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A study on the proliferation of Myzus persicae (sulzer) during the winter season for year-round production within a smart farm facility

Park

Lee²,

Kim³

et al. 2022

PLoS ONE

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In this study, we examined the feasibility of Myzus persicae proliferation through interrelationships with host plants in a smart farm facility during winter. We investigated aphid proliferation under an LED artificial light source and attempted to interpret aphid proliferation in relation to the net photosynthetic rate of the host plant, Eutrema japonicum. We observed that aphids continuously proliferated in the smart farm facility in winter without dormancy. The average number of aphids was greater under the 1:1 red:blue light irradiation time ratio, where the photosynthetic rate of the host plant was lower than under the 5:1 and 10:1 red:blue light irradiation time ratios. These results show that it is important to maintain a low net photosynthetic rate of the host plant, E. japonicum, in order to effectively proliferate aphids under artificial light such as in the case of smart farm facilities.

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Section: Discussionmentioning

confidence: 99%

Section: Plant Cultivation and Smart Farm Environment Treatmentmentioning

confidence: 99%

See 1 more Smart Citation

A study on the proliferation of Myzus persicae (sulzer) during the winter season for year-round production within a smart farm facility

Park

Lee²,

Kim³

et al. 2022

PLoS ONE

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show abstract

“…In order to examine changes in the physiological and growth responses of Epilobium hirsutum L. according to light conditions, four chambers with different light conditions were installed in the smart farm. As for the selection of light conditions, red and blue lights, which are the most efficient for photosynthesis of plants, and white light, which has been frequently used in recent plant cultivation studies (Lee et al 2019;Lee et al 2020;Saleem et al 2020) were selected. The LED monochromatic lights we used show the maximum number of photons at about 630-660 nm (red light), at 450 nm (blue light), and at 450 nm and 540 nm (white light), respectively.…”

Section: Cultivation Of Experimental Plantmentioning

confidence: 99%

The effects of LED light quality on ecophysiological and growth responses of Epilobium hirsutum L., a Korean endangered plant, in a smart farm facility

et al. 2022

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Background: Epilobium hirsutum L. is designated as an endangered plant in South Korea located in Asia, due to the destruction of its habitats through the development of wetlands. Therefore, in this study, in order to find a light condition suitable for the growth and ecophysiological responses of Epilobium hirsutum L., those of this plant under treatment with various light qualities in a smart farm were measured. Results: In order to examine the changes in the physiological and growth responses of Epilobium hirsutum L. according to the light qualities, the treatment with light qualities of the smart farm was carried out using the red light: blue light irradiation time ratios of 1:1, 1:1/2, and 1:1/5 and a red light: blue light: white light irradiation time ratio of 1:1:1. As a result, the ecophysiological responses (difference between leaf temperature and atmospheric temperature, transpiration rate, net photosynthetic rate, intercellular CO 2 partial pressure, photosynthetic quantum efficiency) to light qualities appeared differently according to the treatments with light qualities. The increase in the blue light ratio increased the difference between the leaf temperature and the atmospheric temperature and the photosynthetic quantum efficiency and decreased the transpiration rate and the intercellular CO 2 partial pressure. On the other hand, the white light treatment increased the transpiration rate and intercellular CO 2 partial pressure and decreased the temperature difference between the leaf temperature and the ambient temperature and photosynthetic quantum efficiency. Conclusions: The light condition suitable for the propagation by the stolons, which are the propagules of Epilobium hirsutum L., in the smart farm, is red, blue and white mixed light with high net photosynthetic rates and low difference between leaf temperature and atmospheric temperature.

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“…Owing to the characteristics of cannabis, smart farms are considered suitable for the production of medicinal hemp. This is because security is periodically upgraded [36], space can be used efficiently, environmental factors can be adjusted [37], and yield predictions are more accurate [38]. Kanjilal et al (2014) described the smart farm as an automated system that extended to the farm level, with automatic lighting, climate control, fire and smoke detection, auto-lock and release doors, humidity and moisture control, pre-set wash times, feeder control, and remote mobile connectivity.…”

Section: Introductionmentioning

confidence: 99%

Industrial Hemp Clone Selection Method under LED Smart Farm Condition Based on CBD Production per Cubic Meter

et al. 2022

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Cannabis breeders are combining several genes to develop economically valuable fiber, seed, and medicinal hemp. This study analyzed the characteristics and selection of traits based on cannabidiol production of medicinal cannabis lines successfully grown under artificial light and nutrient solution cultivation conditions in smart farm conditions. Sixteen female plants were selected by seeding medical hemp F1 hybrid specimens obtained by randomly crossing Cherry Wine and native hemp from each country. The F1 generation was treated with 12 h light to induce flower differentiation. CBD production peaked on day 50 of the treatment, and this was selected as the harvesting day. All F1 hybrids were separated by leaf and inflorescence after collecting morphological data, and fresh and dry weights were measured. The CBD production of leaf and inflorescence per cubic meter was calculated. The CW21-5 line produced a total of 53.002 ± 0.228 g of CBD per cubic meter, the highest CBD producer. In addition, heatmap correlation analysis showed that most morphological data were not related to cannabinoid content. Principal Component Analysis (PCA) and Self-Organizing Map (SOM) analysis showed that CW21-5 is an arbitrary line that does not cluster with other lines, and the reason for its excellent CBD yield per cubic meter is that it has a narrow plant diameter and a high CBD content at the same time.

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Effects of Sources and Quality of LED Light on Response of <i>Lycium chinense</i> of Photosynthetic Rate, Transpiration Rate, and Water Use Efficiency in the Smart Farm

Cited by 5 publications

References 19 publications

A study on the proliferation of Myzus persicae (sulzer) during the winter season for year-round production within a smart farm facility

A study on the proliferation of Myzus persicae (sulzer) during the winter season for year-round production within a smart farm facility

The effects of LED light quality on ecophysiological and growth responses of Epilobium hirsutum L., a Korean endangered plant, in a smart farm facility

Industrial Hemp Clone Selection Method under LED Smart Farm Condition Based on CBD Production per Cubic Meter

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