Salinity Effects on Germination and Yield of Purslane (Portulaca Oleracea L.) in a Hydroponic Floating System

Cros, V.; Martínez-Sánchez, J.J.; Hernández, Juan Antonio Fernández; Conesa, E.; Vicente, María José; Franco, J.A.; Carreño, Santiago M. Álvarez

doi:10.17660/actahortic.2007.747.74

Cited by 8 publications

(3 citation statements)

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“…The floating system can be ideal for growing small-sized vegetables (Cros et al 2007). However, the primary irriga-tion water used to prepare nutrient solutions frequently contains high concentrations of salt ions such as Na and Cl (Neocleous and Savvas 2013).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Salinity Effects on Mineral Composition and Nutritional Quality of Green and Red “Baby” Lettuce

Neocleous

Κουκουνάρας

Siomos

et al. 2014

Journal of Food Quality

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The work focuses on the responses of two baby lettuce (Lactuca sativa L.) cultivars (green "Paris Island" and red "Sanguine") to different NaCl solutions (0, 5, 10 and 20 mM). Plant mineral composition (N, P, K, Ca, Mg, Fe, Mn, Zn, Cu, B, Cl and Na) and nutritional quality (nitrates, ascorbic acid, phenolics, flavonoids and antioxidant activity) were determined. Salinity was found to be able to reduce the concentration of K; while, it was able to enhance Zn and Cu concentrations in baby leaves of both cultivars. Salinity was even able to decrease Ca concentration in green lettuce, and to increase the concentrations of Fe, Mn and B in red lettuce. Moreover, salinity was connected to the accumulation of Cl and Na in baby leaves. However, the use of saline waters enhanced health-beneficial phenolic compounds in baby leaves in some instances.

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Section: Introductionmentioning

confidence: 99%

Assessing the Salinity Effects on Mineral Composition and Nutritional Quality of Green and Red “Baby” Lettuce

Neocleous

Κουκουνάρας

Siomos

et al. 2014

Journal of Food Quality

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“…A very few studies have focused on the cultivation and domestication of purslane. Cros et al (2007) carried out comparative study of its cultivation using peat, vermiculite, coir, perlite, and mixtures of peat and perlite and found that plants grown on peat showed the highest total fatty acid, alpha-linolenic acid, and linoleic acid. Application of Rhizophagus irregularis, an arbuscular mycorrhizal fungi (AMF) increased the phosphorus uptake, grain yield, biomass weight, total antioxidant activity, and unsaturated fatty acid, leaf essential oil, and leaf ω3 and improved the soil cation exchange capacity (CEC) of plants (Hosseinzadeh et al, 2020(Hosseinzadeh et al, , 2021.…”

Section: Domestication and Cultivation Of Purslane And Measures To Upscale Its Production And Consumptionmentioning

confidence: 99%

Improvement of a Traditional Orphan Food Crop, Portulaca oleracea L. (Purslane) Using Genomics for Sustainable Food Security and Climate-Resilient Agriculture

Kumar

Sreedharan

Singh

et al. 2021

Front. Sustain. Food Syst.

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Purslane (Portulaca oleracea L.) is a popular orphan crop used for its nutritional properties in various parts of the world. It is considered one of the richest terrestrial sources of omega-3 and omega-6-fatty acids (ω-3 and 6-FAs) suggesting its importance for human health. This ethnomedicinal plant is also an important part of traditional healing systems among the indigenous people. Many studies have indicated its tolerance against multiple stresses and found that it easily grows in a range of environmental gradients. It has also been considered one of the important biosaline crops for the future. Despite its huge nutritional, economic, and medicinal importance, it remains neglected to date. Most of the studies on purslane were focused on its ethnomedicinal, phytochemical, pharmacological, and stress-tolerance properties. Only a few studies have attempted genetic dissection of the traits governing these traits. Purslane being an important traditional food crop across the globe can be valorized for a sustainable food security in the future. Therefore, this review is an attempt to highlight the distribution, domestication, and cultivation of purslane and its importance as an important stress-tolerant food and a biosaline crop. Furthermore, identification of genes and their functions governing important traits and its potential for improvement using genomics tools for smart and biosaline agriculture has been discussed.

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“…Evaluation of purslane irrigated with salty water showed that purslane could survive at 28.5 dS m −1 salinity but treatments with high salinity (> 15.2 dS m −1 ) decreased its production (Grieve and Suarez 1997). When cultured in floating system, seeds of purslane could germinate at salinities ranging from 2.5 dS m −1 to 20 dS m −1 , but its yield decreased when salinity reached 7.5 dS m −1 (Cros et al 2007). Besides, number of leaves and flowers also reduced (Lacerda et al 2015;Alam et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Effects of NaCl stress on growth of Portulaca oleracea and underlying mechanisms

Xing¹,

Dong²,

Wang³

et al. 2019

Braz. J. Bot

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The purslane Portulaca oleracea L. is a promising crop species for agriculture in saline-alkali soils. Up to date, biochemical and molecular changes in purslane in response to salinity were seldom reported. To investigate biochemical effects of salinity on purslane, seedlings were treated with different concentrations of NaCl for up to 14 days. The results showed that treatments with 150 mM and 200 mM NaCl significantly decreased dry and fresh weight of seedlings, shoot and root length as well as leaflet number on main stem, demonstrating inhibition on purslane growth. Treatments with 100-200 mM NaCl significantly decreased net photosynthetic rate, increased intercellular CO 2 concentration, MDA content and production rate of O 2 − , induced activities of SOD, POD and CAT, suggesting inhibition on photosynthesis and induction of oxidant stress. With longer exposure time, activities of antioxidant enzymes showed decreasing tendency, probably due to denaturation of proteins and damages of cell membrane. In treatments with 150 mM and 200 mM NaCl, Na + content increased in purslane leaf, stem and root, which then decreased K + content, probably due to membrane depolarization and regulation of ion channels. Moreover, transcriptome profiles in leaves were compared among treatments with 200 mM for 0, 2, 6, 12 and 24 h. The results suggested that saline treatments down-regulated transcription levels of genes involved in photosynthesis, energy metabolism, lignin biosynthesis and signaling transduction. Overall, the present study uncovered biochemical and molecular responses of purslane to salinity, which should be useful for agriculture of purslane on saline-alkali soils.

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Salinity Effects on Germination and Yield of Purslane (Portulaca Oleracea L.) in a Hydroponic Floating System

Cited by 8 publications

References 0 publications

Assessing the Salinity Effects on Mineral Composition and Nutritional Quality of Green and Red “Baby” Lettuce

Assessing the Salinity Effects on Mineral Composition and Nutritional Quality of Green and Red “Baby” Lettuce

Improvement of a Traditional Orphan Food Crop, Portulaca oleracea L. (Purslane) Using Genomics for Sustainable Food Security and Climate-Resilient Agriculture

Effects of NaCl stress on growth of Portulaca oleracea and underlying mechanisms

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