Responses of two varieties of tomato to abrupt and gradual short-period sodium chloride exposure

El-Shourbagy, M. N.; Ahmed, Ambreen

doi:10.1007/bf02186987

Cited by 14 publications

(9 citation statements)

References 19 publications

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“…This has also been reported in other crop species (Greenway and Munns 1980;Shannon 1985;Maas 1986;Lauchli and Epstein 1990;Johnson et al 1992;. During flowering and fruit setting, tomato plants are able to withstand NaCl concentrations which are sufficient to kill them in the seedling stage (Elshourbagy and Ahmed 1975). This makes it also important that tomatoes are more salt tolerant in their seedling stage.…”

Section: Introductionsupporting

confidence: 64%

Seedling salt tolerance in tomato

Liu

Bai

et al. 2010

Euphytica

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Soils with higher concentrations of salt are becoming more and more a constraint for many crops to obtain high yields. Wild tomato species, adapted to adverse environments, are a potential reservoir for genes underlying quantitative trait loci (QTL) related to salt tolerance in tomato. In this study two introgression line (IL) libraries derived from two different wild species, Solanum pennellii LA716 and Solanum lycopersicoides LA2951, were used to identify QTLs for salt tolerance in the seedling stage. In the S. pennellii IL library, four major QTLs were identified on chromosomes 6, 7 and 11. In the S. lycopersicoides IL library, six major QTLs were discovered which are located on chromosomes 4, 6, 9 and 12. Co-localization of QTLs on chromosome 6 in the two IL libraries and previously reports hinted that this locus might be conserved in the tomato crop. Three S. pennellii ILs (IL6-2, IL7-1 and IL7-5) harboring QTLs on chromosome 6 and 7 were crossed. Semi-dominance and dominance were shown for these three QTLs, and non-additive and epistatic interactions between them were observed.

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Section: Introductionsupporting

confidence: 64%

Seedling salt tolerance in tomato

Liu

Bai

et al. 2010

Euphytica

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“…The growth rates were the highest in soil EC level below 3.0 dS m ). Many previous studies are in accordance with our present study as they reported decreased growth rates in tomato plants under salt stress (Dumbroff and Cooper, 1974;El-Shourbagy and Ahmed, 1975;Cuartero, 1990, Bolarin et al, 1991;Perez-Alfocea et al, 1993).…”

Section: Resultssupporting

confidence: 93%

Physiological Responses of Tomato Plants and Soil Microbial Activity in Salt Affected Greenhouse Soil

Sung¹,

Lee²,

Nam³

et al. 2012

Korean Journal of Soil Science and Fertilizer

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Crop productivity decreases globally as a result of salinization. However, salinity impact on greenhouse-grown crops is much higher than on field-grown crops due to the overall concentrations of nutrients in greenhouse soils. Therefore, this study was performed to determine the short-term changes in growth, photosynthesis, and ) at 28 days. In our experiment, soluble sugars and starch were sensitive markers for salt stress and thus might assume the status of crops against various salt conditions. Taken together, tomato plants found to have tolerance against moderate soil EC stress. Various EC levels (<3.0 ~ 10.0 dS m -1 ) led to a slight decrease in organic matter (OM) contents in soils at 28 days. Salinity stress led to higher microbial activity in soils, followed by a decomposition of OM in soils as indicated by the changes in soil chemical properties.

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“…Young seedlings of rice (Lutts et al 1995) and tomato (Foolad 2004) are generally more sensitive to salt stress than adult plants. During flowering and fruit setting, tomato plants are able to withstand NaCl concentrations sufficient to kill them in the seedling stage (Elshourbagy and Ahmed 1975). Salt stress during tomato germination delays the onset and reduces the rate of germination, resulting in variability of crop maturation and reduced yield.…”

mentioning

confidence: 99%

Relationship between survival and yield related traits in Solanum pimpinellifolium under salt stress

et al. 2012

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A subset of the Solanum pimpinellifolium collection maintained by AVRDC-The World Vegetable Center, Taiwan was evaluated to assess effects of salt stress on physiological traits and yield-related traits with the aim of identifying potential S. pimpi nellifolium accessions useful for salt tolerance breed ing in tomato. We undertook a comparative analysis of yield and plant survival traits under normal and salt stress conditions to obtain a first indication of the crucial traits associated with salt tolerance in S. pimpinellifolium. Although most traits of S. pimpinellifolium accessions showed a similar percent decrease in mean under salt stress compared with the cultivated checks, the former exhibited a wide range for all traits, suggesting great genetic diversity that can be exploited for the identification of salt tolerant genotypes. Genetic variability for yield and survival traits under salt stress was quantitative with low to moderate heritability. Results of correlation and path coefficient analysis revealed no correlation between any of the physiological traits with yield-related traits indicating that the ability to survive and yield under salt stress are two independent sets of traits in S. pimpinellifolium. Results of the path analysis along with heritability and genetic advance showed that shoot dry weight and K/Na ratio are the two most critical component traits for survival, while fruit number is critical for yield per plant. The large S. pimpinellifolium panel evaluated in this study revealed five genotypes possessing better survival traits, seven genotypes with good yield traits, and two genotypes combining both superior survival and yield traits under salt stress.

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Responses of two varieties of tomato to abrupt and gradual short-period sodium chloride exposure

Cited by 14 publications

References 19 publications

Seedling salt tolerance in tomato

Seedling salt tolerance in tomato

Physiological Responses of Tomato Plants and Soil Microbial Activity in Salt Affected Greenhouse Soil

Relationship between survival and yield related traits in Solanum pimpinellifolium under salt stress

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