Gas Exchange and Mineral Nutrition of 12 Viburnum Taxa Irrigated with Saline Water

Chen, Ji Jhong; Hai-feng, Xing; Paudel, Asmita; Sun, Youping; Niu, Genhua; Chappell, Matthew

doi:10.21273/hortsci14941-20

Cited by 2 publications

(2 citation statements)

References 23 publications

(68 reference statements)

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“…However, an increasing trend was visible in both treated plants (CaCl 2 _T and NaCl_T). Finally, in several species of Viburnum, Chen et al [42] found that the leaf Cl − concentration increases with increased electrical conductivity of saline solution containing NaCl and CaCl 2 (1.5:1) and that leaf chloride concentration correlates negatively with visual score, plant height, and leaf P n and g s , but not with the leaf area.…”

Section: The Effect Of Salinity Treatment On Morpho-anatomical Traitsmentioning

confidence: 98%

Changes in Morpho-Anatomical and Eco-Physiological Responses of Viburnum tinus L. var lucidum as Modulated by Sodium Chloride and Calcium Chloride Salinization

et al. 2022

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Salinity in water and soil is among the major constraints to the cultivation of ornamental crops since it can affect their growth and aesthetic value. A greenhouse experiment was carried out to assess whether the application of two different salts (80 mM NaCl or 53.3 mM CaCl2, with a final ionic concentration of 160 mM) could differently modulate the anatomical and physiological acclimation of an important ornamental species such as Viburnum tinus L. var. lucidum. Eco-physiological analyses (e.g., leaf gas exchange and chlorophyll a fluorescence emission) were performed and leaves were subjected to light microscopy analysis to quantify functional anatomical traits through digital image analysis. Results showed that the two iso-osmotic solutions induced different structure-mediated physiological alterations in V. tinus plants. Photosynthesis was lowered by CaCl2 treatments (−58%) more than by NaCl (−37%), also due to the occurrence of photodamage apart from stomatal limitations. Neither Na+ nor Cl− exhibited toxic effects in leaf lamina structure which was reflected in the limited reduction in dry matter accumulation. Overall data were interpreted focusing on the coordination among leaf structural and functional traits suggesting that the fine control of functional anatomical traits contributes to physiological acclimation to both stressful conditions.

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Section: The Effect Of Salinity Treatment On Morpho-anatomical Traitsmentioning

confidence: 98%

Changes in Morpho-Anatomical and Eco-Physiological Responses of Viburnum tinus L. var lucidum as Modulated by Sodium Chloride and Calcium Chloride Salinization

et al. 2022

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“…These findings underscore the influence of saline solution irrigation on g s over varying timeframes. Previous studies by Chen et al (2020) and Sun (2022, 2023) reported a decrease in g s in response to higher EC levels in several ornamental plants. Elevated salinity induces osmotic challenges, leading to a protective reduction in g s to minimize water loss.…”

Section: Resultsmentioning

confidence: 79%

Morphological and Physiological Responses of Two Penstemon Species to Saline Water Irrigation

Nepal,

Wang,

Carnahan

et al. 2024

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Penstemon, with more than 250 species native to North America, holds significant aesthetic and ecological value in Utah, supporting diverse pollinators. Despite their significance, the survival of penstemon is threatened by challenges such as habitat loss, climate change, and Utah’s naturally high soil salinity. To address these challenges and understand their adaptability, this study evaluated the salt tolerance of two penstemon species [Penstemon davidsonii (Davidson’s penstemon) and Penstemon heterophyllus (foothill penstemon)] under controlled greenhouse conditions. The aim was to develop baseline information for nursery production and landscape use that utilize reclaimed water for irrigation. Plants were irrigated weekly with a nutrient solution at an electrical conductivity (EC) of 1.0 dS·m−1 as control or a saline solution at an EC of 2.5, 5.0, 7.5, or 10.0 dS·m−1 for 8 weeks. Half of the plants were harvested after four irrigation events, and the remaining plants were harvested after eight irrigation events. At harvest, visual rating (0 = dead and 5 = excellent without foliage salt damage), plant width, number of shoots, leaf area, shoot dry weight, leaf greenness [Soil Plant Analysis Development (SPAD)], stomatal conductance, and canopy temperature were collected to assess the impact of salinity stress. In both species, salt damage was dependent on the salinity levels and length of exposure. After four irrigation events, both species exhibited foliage damage that increased in severity with rising EC. The most severe damage was observed in plants receiving saline solution at an EC of 10.0 dS·m−1. After eight irrigation events, P. davidsonii exposed to a saline solution with an EC of 10.0 dS·m−1 received a visual rating of 0, whereas P. heterophyllus had a visual rating of 0.4. Both species exhibited salinity-induced effects, with variations observed in the specific parameters and the degree of response. Penstemon davidsonii exhibited significant salinity stress, as indicated by reduced leaf area, shoot dry weight, SPAD reading, and stomatal conductance with increasing EC of the saline solution. In addition, in both species, at both harvests, canopy temperatures increased either linearly or quadratically by 8% to 36% as the EC levels of the saline solution increased. These results indicate that P. davidsonii was more sensitive to salinity stress than P. heterophyllus.

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Gas Exchange and Mineral Nutrition of 12 Viburnum Taxa Irrigated with Saline Water

Cited by 2 publications

References 23 publications

Changes in Morpho-Anatomical and Eco-Physiological Responses of Viburnum tinus L. var lucidum as Modulated by Sodium Chloride and Calcium Chloride Salinization

Changes in Morpho-Anatomical and Eco-Physiological Responses of Viburnum tinus L. var lucidum as Modulated by Sodium Chloride and Calcium Chloride Salinization

Morphological and Physiological Responses of Two Penstemon Species to Saline Water Irrigation

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