Growth and Floral Induction in Okra (Abelmoschus esculentus L.) Under Blue and Red LED Light and Their Alternation DOI Creative Commons
Yao Hervé Yao,

Banah Florent Degni,

Pascal Dupuis

et al.

Horticulturae, Journal Year: 2025, Volume and Issue: 11(5), P. 548 - 548

Published: May 19, 2025

Okra (Abelmoschus esculentus) is a tropical vegetable with high nutritional and economic value. Rich in fiber, vitamins (C, K, B9), minerals (magnesium, potassium, calcium, iron), it contributes to food security many regions. Global production estimated at 11.5 million tons 2023, 62% of which will come from India. Nigeria, Mali, Sudan, Pakistan, Côte d’Ivoire are also among the major producers. Given its importance, optimizing growth through controlled methods such as greenhouse cultivation light-emitting diode (LED) lighting strategic challenge. Energy-efficient LED horticultural offers promising prospects, but each plant variety reacts differently depending on light spectrum, intensity, duration exposure (photoperiod). This study evaluated effects different spectra okra’s flowering after 30 days using B (blue, 445 nm) R (red, 660 lights red-blue alternating three-day cycle (R3B3) by photoperiod 14 10 h. Outdoor conditions served controls. The results show that R3B3 treatment improves germination terms both speed percentage. However, (height, stem diameter, leaf area) remains higher control group. red stimulate node development. Flowering occurs earlier group (51 days) later under LED, particularly blue (73 days). Fruit diameter petal fall was larger These confirm sensitivity okra quality, highlight potential spectral manipulation regulate controlled-environment agriculture.

Language: Английский

The Extended Photoperiod Impacts on Sweet Basil (Ocimum basilicum) in a Natural Tropical Greenhouse DOI Creative Commons
Jie He,

A. K. Nair,

Lin Qin

et al.

Horticulturae, Journal Year: 2025, Volume and Issue: 11(3), P. 324 - 324

Published: March 16, 2025

Sweet basil (Ocimum basilicum) is valued for its culinary and medicinal properties. It thrives in full sunlight long daylight hours under natural conditions. This study examined the effects of extended photoperiod on sweet grown a hot humid tropical greenhouse. Some plants received only (SL), while others had SL supplemented with LED light 6 h (6 h) before sunrise and/or after sunset. Plants (L1) smaller leaf number, area per plant, lower shoot, root productivity than those other The shoot fresh weight 3 sunset (L2), (L3), (L4) was 2.68, 2.33, 1.94 times higher L1 conditions, respectively. maximum quantum efficiency PSII, electron transport rate, effective yield Chl a/b ratio were also L2, L3, L4. total soluble protein, ascorbic acid, phenolic compounds, dietary minerals followed same trend. Among all treatments, L2 consistently showed significantly values, making it optimal lighting strategy photoperiod.

Language: Английский

Citations

0
Daily Light Integral and Nutrient Solution Electrical Conductivity for Tomato and Bell Pepper Seedling Production in an Indoor Vertical Farm with Artificial Lighting DOI Creative Commons

Deyalem Yazmin Adame-Adame,

Daniela Alvarado-Camarillo, Luis Alonso Valdez‐Aguilar

et al.

Horticulturae, Journal Year: 2025, Volume and Issue: 11(5), P. 454 - 454

Published: April 24, 2025

Indoor vertical farms (IVFs) provide the conditions for producing seedlings of good quality. However, their effectiveness depends on daily light integral (DLI) and nutrient management. This study examined effects DLI solution electrical conductivity (EC) tomato bell pepper produced in an IVF or a greenhouse. Seedlings greenhouse were harvested 45 (tomato) 55 (bell pepper) days after sowing, while those 30 40 days, respectively. The optimal EC was 2.0 2.4 dS m−1 pepper. Tomato showed decreased shoot-to-root ratio IVF. Tomatoes reached 241% higher total biomass than at 31.7 mol m−2 d−1, peppers had increase 333% 39.6 d−1; however, 23.7 d−1 enough to cause 153% 264%, Nutrient concentration seedlings, which attributed dilution effect; contrast, content highest when grown irrigated with solutions d−1.

Language: Английский

Citations

0
Influence of daily light integral on irrigation needs and flowering of greenhouse-grown geranium and petunia DOI Creative Commons

Anju Chaudhary,

Shital Poudyal

Scientia Horticulturae, Journal Year: 2025, Volume and Issue: 347, P. 114188 - 114188

Published: May 1, 2025

Language: Английский

Citations

0
Growth and Floral Induction in Okra (Abelmoschus esculentus L.) Under Blue and Red LED Light and Their Alternation DOI Creative Commons
Yao Hervé Yao,

Banah Florent Degni,

Pascal Dupuis

et al.

Horticulturae, Journal Year: 2025, Volume and Issue: 11(5), P. 548 - 548

Published: May 19, 2025

Okra (Abelmoschus esculentus) is a tropical vegetable with high nutritional and economic value. Rich in fiber, vitamins (C, K, B9), minerals (magnesium, potassium, calcium, iron), it contributes to food security many regions. Global production estimated at 11.5 million tons 2023, 62% of which will come from India. Nigeria, Mali, Sudan, Pakistan, Côte d’Ivoire are also among the major producers. Given its importance, optimizing growth through controlled methods such as greenhouse cultivation light-emitting diode (LED) lighting strategic challenge. Energy-efficient LED horticultural offers promising prospects, but each plant variety reacts differently depending on light spectrum, intensity, duration exposure (photoperiod). This study evaluated effects different spectra okra’s flowering after 30 days using B (blue, 445 nm) R (red, 660 lights red-blue alternating three-day cycle (R3B3) by photoperiod 14 10 h. Outdoor conditions served controls. The results show that R3B3 treatment improves germination terms both speed percentage. However, (height, stem diameter, leaf area) remains higher control group. red stimulate node development. Flowering occurs earlier group (51 days) later under LED, particularly blue (73 days). Fruit diameter petal fall was larger These confirm sensitivity okra quality, highlight potential spectral manipulation regulate controlled-environment agriculture.

Language: Английский

Citations

0