Growth characteristics, chlorophyll content and nutrients uptake in

Nkcukankcuka, Milile; Jimoh, Muhali Olaide; Griesel, Gerhardus; Laubscher, Charles P

doi:10.1071/cp20511

Cited by 14 publications

(3 citation statements)

References 44 publications

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“…The average readings of 2 fully developed leaves from each plant were determined and recorded on a data spreadsheet. The readings were recorded during the midday with average daylight levels of 10 Klux (light intensity) [34].…”

Section: Chlorophyll Content Of Leavesmentioning

confidence: 99%

Growth Characteristics, Phytochemical Contents, and Antioxidant Capacity of Trachyandra ciliata (L.f) Kunth Grown in Hydroponics under Varying Degrees of Salinity

Ngxabi¹,

Jimoh²,

Kambizi³

et al. 2021

Horticulturae

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This study evaluated the effect of salinity and soilless media on the vegetative growth, phytochemicals, and antioxidant capacity of Trachyandra ciliata (wild cabbage) to develop its growth protocol and explore its potential as a natural source of secondary metabolites. Treatments consisted of different concentrations of sodium chloride (NaCl), control- 0 mM, 100 mM, 200 mM, 400 mM, while different in vitro assays were used for phytochemical and antioxidant screenings. Findings from the study showed that low salinity (100 mM) significantly increased chlorophyll content, plant height, leaf number, plant fresh weight, and production of inflorescence, particularly in Peat-Perlite-Vermiculite (PPV) medium. In contrast, the control was the most productive treatment in plant dry weight except for the inflorescence. The highest antioxidant activity was observed in 200 mM of NaCl treatment in combination with PPV medium, which also produced the highest mean values for polyphenols, while 100 mM was the best for flavonols. Therefore, T. ciliata proved to be more productive vegetatively under low salinity in combination with PPV soilless media. A combination of 200 mM + PPV treatment was also recommended for maximum production of antioxidants for T. ciliata.

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Section: Chlorophyll Content Of Leavesmentioning

confidence: 99%

Growth Characteristics, Phytochemical Contents, and Antioxidant Capacity of Trachyandra ciliata (L.f) Kunth Grown in Hydroponics under Varying Degrees of Salinity

Ngxabi¹,

Jimoh²,

Kambizi³

et al. 2021

Horticulturae

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“…This improved drought tolerance under salinity may be due to osmotic adjustment through higher Na + and proline accumulation and antioxidative enzymes [64]. Nevertheless, the leaves of ice plants subjected to both salinity and water stress possessed more polyphenols and flavonols than other promising edible halophytes in South Africa, such as Chenopodium album, Trachyandra divaricata, Trachyandra ciliata [21,[65][66][67], and Tetragonia decumbens [24,68]. This suggests that the leaves of this plant may be a good source of nutritional antioxidants.…”

Section: Discussionmentioning

confidence: 99%

Interactive Effects of Salinity Stress and Irrigation Intervals on Plant Growth, Nutritional Value, and Phytochemical Content in Mesembryanthemum crystallinum L.

Mndi,

Sogoni,

Jimoh

et al. 2023

Agriculture

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Halophytes such as ice plants are concurrently subjected to salt and drought stresses in their natural habitats, but our knowledge about the effects of combined stress on plants is limited. In this study, the individual and combined effects of salinity and irrigation intervals on the plant growth, mineral content, and proximate and phytochemical composition of M. crystallinum were evaluated. Treatments consisted of four irrigation treatments ((1) 100 mL once a day; (2) 100 mL once every 2 days; (3) 100 mL once every 4 days; (4) 100 mL once every 8 days) with four salt concentrations (0, 200, 400, and 800 ppm) applied in each treatment. Salt concentrations were set up by adding increasing concentrations of NaCl to the nutrient solution, while the control treatment was irrigated daily without NaCl. The results revealed a significant increase in the leaf number and fresh and dry weights of plants irrigated with 800 ppm salinity every four days. However, the highest chlorophyll content was consistently recorded in the control treatment (0 ppm, 4-day irrigation interval), although no significant variability in chlorophyll content was observed at week 6. The highest yields of N, Mg, and Cu were consistently recorded in plants without saline treatment, while P, K, Ca, Na, Zn, and Fe were consistently recorded in plants subjected to a combination of salinity and irrigation intervals. The combination of salinity and irrigation intervals was significant for Fe and Ca, whereas, for other elements, no significant differences occurred. The salt concentration did not influence the high yields of acid detergent fibre (ADF), crude fat, protein, or neutral detergent fibre (NDF), as they were recorded in high amounts in plants subjected to irrigation intervals only, whereas a combination of salinity and irrigation intervals resulted in the highest ash and moisture contents. Invariably, the 8-day irrigation interval without salinity optimized the yields of assayed polyphenols, flavonols, Ferric Reducing/Antioxidant Power (FRAP), and 2,2-diphenyl-1-picrylhydrazyl (DPPH), suggesting that salt stress does not influence the quantities of phytochemicals and antioxidants of M. crystallinum. These findings suggest that M. crystallinum can minimize the impact of salt stress on the accumulated minerals, phytochemicals, and proximate and antioxidant substances. Therefore, it is a suitable vegetable for regions affected by both salinity and water stress, as it can provide additional minerals, phytochemicals, antioxidants, and proximate nutrients when cultivated in saline soils.

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“…The important of macro and micro nutrients concentrations in hydroponic culture lies in providing essential elements for plant growth and development. Macro nutrients (e.g., nitrogen, phosphorus, potassium) are needed in larger quantities, supporting overall plant health, while micro nutrients (e.g., iron, zinc and manganese) are required in smaller amounts, playing vital roles in specific biochemical processes for optimal growth (Nkcukankcuka et al 2021, Pearson et al 2023. In this study, an appropriate concentration of five macro nutrients such as NH4NO3, KH2PO4, CaCl2, MgSO4, and Fe-Na EDTA and four micro nutrients including H3BO3, MnSO4, (NH4)6Mo7O24, and CoCl2 were used for establishment of B. alba and S. lycopersicum hydroponic culture (Table 1).…”

Section: Discussionmentioning

confidence: 99%

Establishment and Maintenance of Brassica Alba and Solanum Lycopersicum on Hydroponic Culture at Laboratory Condition

Anjum,

Hosen,

Hridoy

et al. 2023

J bio-sci.

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Hydroponics culture offers immense benefits in plant research, making it a valuable and versatile tool in scientific investigations across plant biology, agronomy, horticulture and diverse fields of research. The present study has been carried out for the establishment of Brassica alba and Solanum lycopersicum on hydroponic culture in laboratory condition. Firstly, an ideal concentration of macro and micro nutrients was developed for both B. alba and S. lycopersicum seedlings. After germination of both seeds, seedling was carefully monitored over a 15-day observation period on seedling tray. Then transfer of two-week-old seedlings to hydroponic media resulted in successful adaptation for both species. B. alba displayed slow initial growth but progressed significantly with robust development in the long run. In contrast, S. lycopersicum adapted quickly and exhibited continuous growth throughout the observation period. By week 4, both species had matured, with B. alba plants showing larger roots and stems and the onset of flowering. Both B. alba and S. lycopersicum seedlings displayed distinct growth patterns in hydroponic culture. These findings contribute valuable insights into the growth dynamics and viability of these two plant species in hydroponic systems, providing important information for optimizing cultivation practices and improving agricultural productivity. J. Bio-Sci. 31(1): 87-98, 2023

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Growth characteristics, chlorophyll content and nutrients uptake in

Cited by 14 publications

References 44 publications

Growth Characteristics, Phytochemical Contents, and Antioxidant Capacity of Trachyandra ciliata (L.f) Kunth Grown in Hydroponics under Varying Degrees of Salinity

Growth Characteristics, Phytochemical Contents, and Antioxidant Capacity of Trachyandra ciliata (L.f) Kunth Grown in Hydroponics under Varying Degrees of Salinity

Interactive Effects of Salinity Stress and Irrigation Intervals on Plant Growth, Nutritional Value, and Phytochemical Content in Mesembryanthemum crystallinum L.

Establishment and Maintenance of Brassica Alba and Solanum Lycopersicum on Hydroponic Culture at Laboratory Condition

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