Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species

Leonel, Léo Vieira; Reis, Fabrício de Oliveira; Figueiredo, Fábio Afonso Mazzei Moura de Assis; Ferraz, Tiago Massi; Júnior, Sebastião de Oliveira Maia; Silva, Patrick Costa; Andrade, Jailma Ribeiro de

doi:10.1007/s11676-022-01552-8

Cited by 8 publications

(5 citation statements)

References 26 publications

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“…Changes in the soil water regime can influence the morphological and physiological responses of plants [16,17]. Reductions in A, gs and E values in seedlings grown in 40% WHC were observed, regardless of shading levels.…”

Section: Bmentioning

confidence: 99%

Water-Light Interaction and its Effect on the Morphophysiology of <em>Cedrela fissilis</em> Vell Seedlings

Silverio,

Scalon,

Santos

et al. 2024

Preprint

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Plant responses to different light and water availability are variable among species and their re-spective phenotypic plasticity, and the combination between these two abiotic factors can alleviate or intensify stressful effects. This study aimed to evaluate the impacts of exposure time of Cedrela fissilis Vell. seedlings to different water and light availability and the interaction of these factors. Seedlings were submitted to combinations of three shading levels – SH (0, 30 and 70%) and three water regimes based on the water holding capacity (WHC) in the substrate, constituting nine cul-tivation conditions: T1 – 0% SH + 40% WHC; T2 – 0% SH + 70% WHC; T3 – 0% SH + 100% WHC; T4 – 30% SH + 40% WHC; T5 – 30% SH + 70% WHC; T6 – 30% SH and 100% WHC; T7 – 70% SH + 40% WHC; T8 – 70% SH +70% WHC; T9 – 70% SH + 100% WHC. C. fissilis seedlings respond to water deficit, here represented by 40% WHC, regardless of exposure time, and when cultivated in full sun, the stressful effects were enhanced, acting in a synergistic manner. The condition that provided better gas exchange performance and greater total dry mass accumulation for C. fissilis seedlings was 30% shading combined with 100% WHC. C. fissilis seedlings have physiological plasticity and resilience to survive under different water and light conditions.

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Section: Bmentioning

confidence: 99%

Water-Light Interaction and its Effect on the Morphophysiology of <em>Cedrela fissilis</em> Vell Seedlings

Silverio,

Scalon,

Santos

et al. 2024

Preprint

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show abstract

“…Other sources such as science and technology, agriculture, and domestic activities also contribute to water pollution. However, the contribution to aqueous contamination by these various industries is very significant [1][2][3][4][5][6][7]. Various industries such as pharmaceutics, leather, textile, food, etc., are responsible for water pollution.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photocatalytic Activity of the Bi2O3-NiO Heterojunction for the Degradation of Methyl Orange under Irradiation of Sunlight

Ashfaq,

Ali,

Abbood

et al. 2023

Water

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Recently, the development of visible-light-responsive catalysts for the photodegradation of organic pollutants has captured the attention of researchers globally. The ineffectiveness and high costs associated with conventional methods and techniques used for the abatement of water pollution have forced researchers to develop effective and low-cost innovative techniques for this purpose. Photocatalysis is considered an effective protocol for this purpose. Therefore, this study was conducted for the development of the Bi2O3-NiO heterojunction as a visible-light-responsive photocatalyst for the degradation of methyl orange. Ni(NO3)2∙6H2O (Fluka) and Bi(NO3)3∙5H2O (Merck) were used as precursor materials for the synthesis of NiO-Bi2O3. After fabrication, the Bi2O3-NiO heterojunction was characterized using XRD, EDX, SEM, FTIR, and TGA techniques. Then, it was employed as a catalyst for the photodegradation of methyl orange under sunlight irradiation. The fabricated Bi2O3-NiO showed higher photocatalytic activity than Bi2O3 and NiO with 100, 67, and 46% degradation of methyl orange, respectively. The rate constant determined by the non-linear method of analysis for the photodegradation of MO in the presence of Bi2O3-NiO was 3.2-fold and 1.7-fold of the rate constant with NiO and Bi2O3, respectively. The higher photocatalytic activity of Bi2O3-NiO than of its individual components in the present study is also attributed to the separation and transfer of positive holes and electrons. The recycling of spent Bi2O3-NiO under similar experimental conditions exhibited the same photocatalytic activity suggesting the stability of the fabricated Bi2O3-NiO photocatalyst.

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“…Many horticultural plants (such as leafy, root, and fruit vegetables) have been cultivated with hydroponic in a closed growth chamber with a new type of light source such as light‐emitting diode (LED) called plant factory with artificial lighting (PFAL) or vertical farms with artificial lighting (VFALs) (Sabzalian et al., 2014 ; Zha & Liu, 2018 ). Manipulation in LED light environment (e.g., establishing specific spectral modes by integrating light quality (spectral composition) and quantity (intensity and photoperiod), and circadian rhythm traits from microsecond to hour levels) can enhance productivity and macro‐ and micronutrient concentration of lettuce crop in a plant factory (Chen & Yang, 2018 ; Jao & Fang, 2004 ; Leonel et al., 2023 ). It has been acknowledged that plants are able to sense the surrounding environment by obtaining information through perceiving light signals in the visible region of the radiation spectrum (400–700 nm) which are the most effective for photosynthesis, photoreceptors, and dynamically absorb and utilize various nutrient elements (Xu et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Spectral composition of LED light differentially affects biomass, photosynthesis, nutrient profile, and foliar nitrate accumulation of lettuce grown under various replacement methods of nutrient solution

Soufi,

Roosta,

Fatehi

et al. 2023

Food Science & Nutrition

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To enhance crop yield and quality, plant cultivation in controlled‐growing systems is an alternative to traditional open‐field farming. The use of light‐emitting diode (LED) as an adjustable light source represents a promising approach to improve plant growth, metabolism, and function. The objective of this study was to assess the impact of different light spectra (red, red/blue (3:1), blue, and white) with an emission peak of around 656, 656, 450, and 449 nm, respectively, under various replacement methods of nutrient solution (complete replacement (CR), EC‐based replacement (ECBR), and replacing based on plant needs (RBPN)), on biomass, physiological traits, and macro‐ and micronutrient contents of two best‐known lettuce varieties, Lollo Rossa (LR) and Lollo Bionda (LB), in the nutrient film technique (NFT) hydroponic system. The results indicated that mix of red and blue LED spectra under RBPN method is the most effective treatment to enhance fresh and dry weights of lettuce plants. In addition, red LED spectrum under RBPN, and red and blue light under ECBR nutrient solution significantly increased leaf stomatal conductance, net photosynthesis and transpiration rate, and intercellular CO2 concentration of LR variety. Phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mn) content in LR variety, and iron (Fe), zinc (Zn), copper (Cu), and manganese (Mn) content in both varieties increased upon exposure to blue and red LED light spectrum with RBPN method. Our results suggest that exposure to combination of red and blue light along with feeding plants using RBPN and ECBR methods can increase absorption of macro‐ and micronutrient elements and improve photosynthetic properties, and eventually increase lettuce yield with lower nitrate accumulation.

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Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species

Cited by 8 publications

References 26 publications

Water-Light Interaction and its Effect on the Morphophysiology of <em>Cedrela fissilis</em> Vell Seedlings

Water-Light Interaction and its Effect on the Morphophysiology of <em>Cedrela fissilis</em> Vell Seedlings

Enhanced Photocatalytic Activity of the Bi2O3-NiO Heterojunction for the Degradation of Methyl Orange under Irradiation of Sunlight

Spectral composition of LED light differentially affects biomass, photosynthesis, nutrient profile, and foliar nitrate accumulation of lettuce grown under various replacement methods of nutrient solution

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