Effect of seawater irrigation on biomass production and ion composition of seven halophytic species in Morocco

Harrouni, M. C.; Daoud, Salma; Koyro, Hans‐Werner

doi:10.1007/978-94-017-0211-9_6

Cited by 13 publications

(10 citation statements)

References 10 publications

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“…The decrease in K + content, in other varieties (Q1 and Q3) under high salinity, may be related to its replacement by the Na + for a function in osmoregulation. Such observation was considered as a good marker of 'Halophytism' to escape from Na + toxic effect (Harrouni et al 2003). Particularly, variety Q4 exhibited the high selectivity for potassium as expressed by K + /Na + ratio of shoot and root, especially under 500 mM NaCl (Table 3).…”

Section: Discussionmentioning

confidence: 99%

Physiological and biochemical markers for screening salt tolerant quinoa genotypes at early seedling stage

Derbali

Goussi

Koyro

et al. 2020

Journal of Plant Interactions

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The present study was conducted to determine the predictive screening parameters of quinoa salt tolerance that can be applied at early development stages, based on physiological and biochemical approaches. Four quinoa varieties (Tumeko, Red Faro, Kcoito and UDEC-5) were cultivated using hydroponic system, and treated for 2 weeks with different NaCl concentrations (0, 100, 300 and 500 mM). Salt treatment induced a decrease of plant growth depending on NaCl concentrations, plant organs and varieties. Red Faro and UDEC-5 exhibited low level of Na + accumulation and high K/Na selectivity. UDEC-5 showed high stomatal conductance leading to high net photosynthesis, even at 500 mM NaCl. Red Faro and UDEC-5 exhibited low level of lipid peroxidation, high antioxidant activities and high proline accumulation, as an indicator of ROS defense and osmotic adjustment. This study suggested that these physiological and biochemical traits could be used as screening criteria for selecting salt tolerant genotype. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 99%

Physiological and biochemical markers for screening salt tolerant quinoa genotypes at early seedling stage

Derbali

Goussi

Koyro

et al. 2020

Journal of Plant Interactions

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“…Sodium and chloride are the most commonly assimilated ions for osmotic adjustment in halophytes. The decrease in K + content with salinity may be related to its replacement by Na + for a function in osmoregulation (Harrouni, Daoud & Koyro, 2003).…”

Section: Discussionmentioning

confidence: 99%

Physiological and biochemical traits involved in the genotypic variability to salt tolerance of Tunisian Cakile maritima

Megdiche

Nader

Debez

et al. 2009

African Journal of Ecology

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Cakile maritima (family: Brassicaceae) was collected from three provenances belonging to different bioclimatic stages (humid, semi arid and arid) in Tunisia to study their eco‐physiological and biochemical responses to salinity. Seedlings were cultivated on inert sand for 20 days under NaCl treatments (0, 100, 200, 400 mm NaCl). Plant response to salinity was provenance‐ and salt‐dependent. At 100 mm NaCl, growth parameters (leaf biomass, area, number per plant and relative growth rate) were improved in plants from Jerba (originating from arid bioclimatic stage) compared with the control, while growth was reduced in those from Tabarka (from humid area). High salt levels (400 mm NaCl) decreased the plant growth in the three provenances, but plants in Tabarka were the most salt sensitive. The relative salt tolerance of plants from Jerba and Bekalta provenances was associated with low levels of malondialdehyde as well as of electrolyte leakage and endoproteolytic activity. Salt reduced leaf hydration, the decrease in water content being dose‐dependent and more pronounced in Tabarka. Increase in salinity led to significant increase in leaf succulence and decrease in leaf water potential, especially in Jerba plants. The plants from the latter displayed the highest leaf levels of Na+ and Cl−, proline, soluble carbohydrates, soluble proteins, and polyphenols. Overall, the higher salt tolerance of plants from Jerba provenance, and to a lower extent of those from Bekalta, may be partly related to their better capacity for osmotic adjustment and to limit oxidative damage when salt‐challenged.

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“…Relative growth rates for dicotyledonous halophytes in 200–360 m m NaCl range, on a dry mass basis, between 6 and 160 mg g −1 d −1 , and, for monocotyledonous halophytes, between 15 and 26 mg g −1 d −1 (Rozema & van Diggelen, 1991; Wickens & Cheeseman, 1991; Nerd & Pasternak, 1992; Ayala & O’Leary, 1995; Khan et al ., 1999; Harrouni et al ., 2003; Debez et al ., 2006); in terms of ash‐free dry mass, relative growth rates of 10 species of dicotyledonous halophytes lay between 31 and 70 mg g −1 d −1 (Glenn & O’Leary, 1984). Growth rates of the dicotyledonous halophytes can match those of glycophytes with annual dry matter production obtained from field experiments on saline soils of between 0.08 and 18 t ha −1 yr −1 (O’Leary et al ., 1985): these higher‐end rates are, as discussed by Glenn et al .…”

Section: Growth and Osmotic Adjustmentmentioning

confidence: 99%

Salinity tolerance in halophytes*

2008

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Effect of seawater irrigation on biomass production and ion composition of seven halophytic species in Morocco

Cited by 13 publications

References 10 publications

Physiological and biochemical markers for screening salt tolerant quinoa genotypes at early seedling stage

Physiological and biochemical markers for screening salt tolerant quinoa genotypes at early seedling stage

Physiological and biochemical traits involved in the genotypic variability to salt tolerance of Tunisian Cakile maritima

Salinity tolerance in halophytes*

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