Effects of various combinations of red and blue LEDs on seed germination and growth in Indian spinach (Basella alba L.)

Kim, Si-Hong; Jang, Dong-Cheol; Zebro, Mewuleddeg; Heo, Ji Hoe

doi:10.26353/j.itahort/2022.1.196205

Cited by 3 publications

(3 citation statements)

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“…Tese data were used to assess important seed germination characteristics, including the germination rate (GR), germination energy (GE), and the median germination time (T 50 ). Te germination rate (GR) (%) was calculated by dividing the number of germinated seeds by the total number of seeds over the experimental period, as described by Kim et al [20]. Germination energy (GE) (%) was determined as the percentage of germinated seeds on the 9th day.…”

Section: Evaluation Of Seed Germinationmentioning

confidence: 99%

Light-Emitting Diode Light Quality Influences Germination and Sprout Characteristics of Motherwort

Lee,

Zebro,

Heo

2023

Journal of Food Quality

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Motherwort (Leonurus japonicus Houtt) is an important medicinal plant known for its excellent antioxidant properties. Nonetheless, in South Korea, its availability remains limited due to the challenge of low seed germination rates, affecting field production. To tackle this problem, it is imperative to focus on controlled production methods. In our study, we conducted experiments in a laboratory setting, employing various combinations of light-emitting diode (LED) lights to cultivate motherwort. The influence of LED light quality on seed germination, initial growth, and functionality of motherwort is evaluated. The germination rate of motherwort ranged from 36.1 ± 7.35% to 75.0 ± 1.60%, and the highest value was observed in the red LED 100% treatment. The mean shoot length also varied depending on LED light quality. The longest shoot length (3.45 ± 0.13 g) was obtained in the red LED 100% treatment. The highest shoot weight (0.266 ± 0.011 cm) and root weight (0.051 ± 0.008 cm) were obtained in the red LED 70% and blue LED 30% mixed treatment. The total phenolic content of the motherwort sprout ranged from 2.50 ± 0.30 mg GAE/g to 3.01 ± 0.09 mg GAE/g, with the highest value from the white LED (control) treatment, but no significant differences were observed among the treatments. The red LED 30% and blue LED 70% mixed treatment showed the highest total flavonoid content (11.62 ± 0.79 mg QE/g) and DPPH radical scavenging activity (57.64 ± 2.95%). The red LED 70% and blue LED 30% mixed treatment had a similar level of DPPH scavenging activity as the control, and there was no positive or negative effect on the functionality of motherwort sprout. Overall, the results suggest that the red LED 70% and blue LED 30% mixed treatment can be effectively used to increase productivity in motherwort without decreasing its important quality.

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Section: Evaluation Of Seed Germinationmentioning

confidence: 99%

Light-Emitting Diode Light Quality Influences Germination and Sprout Characteristics of Motherwort

Lee,

Zebro,

Heo

2023

Journal of Food Quality

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“…To assess the growth patterns under salt stress conditions, several parameters were measured, including leaf area and number, live weight of above-and below-ground parts, as well as dry weight after drying. Leaf area was determined using Easy Leaf Area software, following the method employed by Kim, Jang, Zebro and Heo [7], once the first leaf was collected. The number of leaves was calculated by counting the total number of leaves after a 7-day NaCl treatment.…”

Section: Measurement Of Growth Parametersmentioning

confidence: 99%

“…In Korea, Pak Choi cultivation takes place in both open fields and controlled facilities, with approximately 84% of production occurring in facilities [6]. Facility cultivation allows for year-round production and controlled shipping times; however, the practice of continuous cropping, fertilization, and the prevention of rainfall inside the facilities can lead to salt accumulation in the soil [7]. Since Pak Choi is categorized as a plant with low salt tolerance, the elevated salt concentration in the soil adversely affects photosynthesis efficiency, ion absorption, and transport, ultimately resulting in decreased productivity [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Physiological Responses of Pak Choi (Brassica rapa Subsp. Chinensis) Genotypes to Salt Tolerance

Park,

Kim,

Lee

et al. 2023

Horticulturae

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Salinity stress poses a significant challenge to Pak Choi (Brassica rapa subsp. Chinensis) production. To address this limitation, we conducted an evaluation of 24 Korean native Pak Choi species to identify genotypes with resistance to salt stress. Through cluster analysis of electrolyte leakage data, we discovered ‘IT262109’, ‘IT279432’, and ‘IT185735’ as native accessions displaying the strongest salt tolerance. Additionally, our assessment of the maximum quantum yield of photosystem II revealed a 3.7% reduction in seaweed yield in the highly salt-tolerant system compared with the control group, while the weak salt-tolerant system experienced a substantial reduction rate of 45.7% to 49.4%. Notably, salt stress had a significant impact on Pak Choi growth, but the salt-tolerant genotype exhibited less growth reduction compared with the salt-sensitive genotype. Based on the electrolyte leakage and maximum quantum yield data, it was evident that ‘IT185735’ demonstrated poorer growth compared with ‘IT262109’ and ‘IT279432’. Consequently, ‘IT262109’ and ‘IT279432’ show great potential as parent varieties for enhancing salt tolerance in Pak Choi.

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Light quality and intensity modulation on yield and quality on crops grown in vertical farms

Ferrante,

Toscano,

Romano

2024

Europ.J.Hortic.Sci.

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Effects of various combinations of red and blue LEDs on seed germination and growth in Indian spinach (Basella alba L.)

Cited by 3 publications

References 0 publications

Light-Emitting Diode Light Quality Influences Germination and Sprout Characteristics of Motherwort

Light-Emitting Diode Light Quality Influences Germination and Sprout Characteristics of Motherwort

Physiological Responses of Pak Choi (Brassica rapa Subsp. Chinensis) Genotypes to Salt Tolerance

Light quality and intensity modulation on yield and quality on crops grown in vertical farms

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