Effects of salinity on growth, shoot water relations and 
root hydraulic conductivity in tomato plants

Rodrı́guez, P.; Dell'Amico, J. M.; Morales, D.; Blanco, María Dolores Rego; Alarcón, Juan José

doi:10.1017/s0021859697004309

Cited by 58 publications

(36 citation statements)

References 12 publications

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“…This observation was confirmed for Bell Pepper seedlings (Morales-Garcia et al, 2008) which could be a consequence of a higher accumulation of Na+ in roots than in shoots (Blom-Zandstra et al, 1998). Decreasing in the root/shoot ratio have also been reported for other seedlings grown under saline conditions (Al-Harbi, 1995;Rodriguez et al, 1997;Yildirim and Guvenc, 2006). Salinity reduces root development, water uptake as well as transpiration and respiration which results in perished hormonal balance, altered photosynthesis rate, decreased nitrate uptake, and cell growth.…”

Section: Effect Of the Water Typesupporting

confidence: 62%

Effect of Zeolux use on Sage (Salvia officinalis) plant irrigated by fresh and Ro reject waters

2016

Global NEST Journal

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The effect of Zeolux use as soil amendment on the yield and some of the agronomic traits of a home garden plant, Sage (Salvia officinalis), irrigated by either fresh or RO reject waters was studied. Clay and different combinations of clay-Jordanian zeolux were compared for that purpose. Each combination was divided into two subgroups at randomized experiment and irrigated with either fresh or RO reject waters. The combination of 75% clay and 25% zeolux irrigated with fresh water produced the best results in terms of plant height, number of branches, fresh weight, dry weight and root dry weight of sage plant. The results indicate that the use of RO reject water causes significant reduction in all the studied parameters above. The use of zeolux did not reduce the harmful effects of the saline water used for irrigation on the yield of sage.

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Section: Effect Of the Water Typesupporting

confidence: 62%

Effect of Zeolux use on Sage (Salvia officinalis) plant irrigated by fresh and Ro reject waters

2016

Global NEST Journal

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“…Thus, the mean values reached 260,00 mg/g FW (Figure 2). Also, the lowest values for the content of the carotenoids were marked in the levels 10g/l with 0,354 mg/g FW and at 15 g/l NaCl with 0,267 mg/g FW (Figure 3 As accessory pigments, carotenoids participate in photoinduced electron transfer processes and protect chlorophyll photoxidative damage (Rodriguez et al, 1997). The decrease of total carotenoids content (TCC) may be explained as a result of either a low synthesis rate or enhanced degradation induced by reactive oxygen species (ROS).…”

Section: Chlorophyll (A B) and Carotenoids Contentmentioning

confidence: 99%

Improvement of Salt Tolerance in Durum Wheat (Triticum Durum Desf.) by Auxin and Kenitin Application

Benmakhlouf¹,

Gherroucha²

2017

ESJ

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The aim of this work is to study the effect of soil salinity using different levels of NaCl (0, 10, 15 g/ NaCl) on some morphological and physiological properties of durum wheat (Triticum durum Desf.) var KEBIR in the vegetative stage. The results obtained allowed us to observe the negative impact of saline stress on the leaf area, Chlorophyll b, and carotenoids at moderate and higher salinity levels. The effect of salt on chlorophyll a content remains insignificant. On the other hand, proline content was highly affected by salt stress. It was excessively increased with the rise of osmotic stress levels, especially at higher salinity levels (15g/l NaCl). Phytohormones, such as auxin and cytokinin, are known to be involved in the regulation of plant responses to salinity stress. Also, it counteracts the adverse effect of stress conditions. Exogenous spraying of indole-3-acetic acid (IAA) and kinetin (K) with three various levels (10, 20, 30 p.p.m.), during the vegetative phase, indicated that an increase in the leaf area and pigments content are associated with a decrease in the proline content.

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“…A strong linear relationship (r = 0.97) between EC of the nutrient solution and tomato plant water absorption has been demonstrated [170]. For other species, it has been suggested that root permeability decreased under salt stress and might explain the reduction of water uptake [64,152], but this explanation is not conclusive for tomato grown under 0-200 mM NaCl [158,162]. Tomato fruit has a very low transpiration rate and only around 15% of the water input comes via the xylem [90].…”

Section: Effect Of Electrical Conductivity Of the Nutrient Solution Omentioning

confidence: 99%

Influence of electric conductivity management on greenhouse tomato yield and fruit quality

2001

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-The osmotic and ionic effects of the electrical conductivity (EC) of the nutrient solution and its interactions with climatic factors and cultural practices on tomato yield and fruit quality are reviewed. Adjusting the salinity of the nutrient solution allows growers to modify water availability to the crop and hence improve fruit quality. At some point, however, increases in salinity limit marketable yield. Under high ECs, fruit size is inversely related to EC while the dry matter content of the fruit is linearly increased by the EC. The exact rate of yield decline varies with interactions between cultivars, environmental factors, composition of the nutrient solution, and crop management. According to different studies and growth conditions, salinities higher than 2.3-5.1 mS⋅cm -1 result in an undesirable yield reduction, while ECs of 3.5-9.0 mS⋅cm -1 improve tomato fruit quality. Manipulating the indoor climate such as humidity, temperature and ambient CO 2 level may offset the negative effect of high salinity on yield and fruit quality such as blossom-end rot. The light intensity received by the plant directly affects the quantity of photoassimilates available to the fruit, it also increases their sugar: acid ratio, and influences the transpiration rate and the water uptake by the plant, which in turn, affect the EC around the root. Increasing the EC with NaCl reduces titratable acids, potassium and nitrogen in the fruit but also increases their sodium content. NaCl enhances the sweetness of tomato fruit and improves the overall flavour intensity. Depending upon the composition of the saline solution, ion toxicities or nutritional deficiencies may arise because of a predominance of specific ion or competition effects among cations and anions. Keeping the proper nutrient levels and ratios between all the nutrients in the root environment for each growth stage of a crop should be targeted in order to achieve high yields and high quality products throughout the cropping season. Several EC and fertigation management regimes could improve fruit quality and are presented in this review.Lycopersicon esculentum / tomato / electrical conductivity / salinity / fruit quality / greenhouse Résumé -Influence de la régie de la conductivité électrique de la solution nutritive sur le rendement et la qualité de la tomate de serre. Cette revue de littérature porte sur les effets osmotiques et ioniques de la conductivité électrique (CE) de la solution nutritive et de ses liens avec les facteurs climatiques et culturaux sur le rendement et la qualité de la tomate de serre. L'ajustement de la salinité de la solution nutritive permet aux producteurs de modifier la disponibilité en eau pour la plante de façon à contrôler la qualité des fruits. Cependant, des salinités élevées affectent le rendement vendable. Sous une haute CE, le calibre des fruits est inversement relié à la CE alors que le contenu en matière sèche des fruits augmente linéairement avec la CE. Le taux de réduction du rendement varie selon les interactions e...

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Effects of salinity on growth, shoot water relations and root hydraulic conductivity in tomato plants

Cited by 58 publications

References 12 publications

Effect of Zeolux use on Sage (Salvia officinalis) plant irrigated by fresh and Ro reject waters

Effect of Zeolux use on Sage (Salvia officinalis) plant irrigated by fresh and Ro reject waters

Improvement of Salt Tolerance in Durum Wheat (Triticum Durum Desf.) by Auxin and Kenitin Application

Influence of electric conductivity management on greenhouse tomato yield and fruit quality

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