Effect of Salt Stress on Seed Germination, Plant Growth, Photosynthesis and Ion Accumulation of four Tomato Cultivars

Sholi, Nasser J.Y.

doi:10.3923/ajpp.2012.269.275

Cited by 33 publications

(27 citation statements)

References 13 publications

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“…Increasing salinity stress levels strongly affected all studied parameters. In agreements with our results, Carpici et al (2009) indicated that the germination indices of all the cultivars reduced with enhancing salt stress (Cramer, 1994, Jamil et al, 2006and Sholi, 2012. More, salt stress induced by NaCl affects germination in two ways; (1) high salt levels in the medium may decrease the osmotic potential which prevent or inhibit the uptake of necessary water for mobilization of nutrient required for germination; (2) the salt constituents or ions may be toxic to the embryo Khayatnezhad, 2010 andKhayatnezhad et al, 2010).…”

Section: Results and Discussion Hybrids And Salinity Stress Effectssupporting

confidence: 93%

Evaluation of Seed Germinability and Field Emergence Of Some Maize (Zea mays, L.) Hybrids Under Salinity Stress Conditions

Zalama

Kishk

2017

Journal of Plant Production

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Laboratory and field emergence under greenhouse experiments were designed to evaluate the germinability and field emergence of eight maize hybrids, i.e.; maize hybrids single white (Pioneer 30K8, Giza 130 and Hi Tech 2031), maize hybrid single yellow (Hi Tech 2066), maize hybrids triple white (Giza 310, Giza 321 and Giza 324) and maize hybrid triple yellow (Giza 352) under some levels of salt concentrations induced by sodium hypochlorite NaCl 1% solution, i.e.; (Tap water 320, 1000, 2000, 3000 and 4000 ppm) during 2015 season. The best results of maize hybrids were obtained by Hi Tech 2031 and the depressed values restricted by Giza 352 and Giza 130, respecting of germination indices i.e. G (%), mean germination time (MGT), germination velocity index (GVI), seedling vigor index (SVI); seedling growth indices i.e. plumule length (cm), radical length (cm), seedling fresh and dry weights (g); salinity stress assay i.e. germination stress index (GSI), seedling length stress tolerance index (SLSI), radical length stress tolerance index (RLSI) and proline content; and field emergence. Results also indicated that, all salinity stress levels while compared with control treatment (320 ppm) recorded the lowest values of all previous studied traits and the lowest values were obtained by NaCl level (4000 ppm). Regarding to the interaction, all maize hybrids under control treatment (320 ppm) recorded the highest values of all traits compared with all salinity stress levels. The best values recorded by Hi Tech 2031, Pioneer 30K8, Hi Tech 2066, Giza 310 and Giza 321 respectively. Giza 352 and Giza 130 recorded the lowest values under all NaCl concentration levels. There were highly significant differences between studied hybrids and salinity treatments and the mean performance for studied characters was discussed.

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Section: Results and Discussion Hybrids And Salinity Stress Effectssupporting

confidence: 93%

Evaluation of Seed Germinability and Field Emergence Of Some Maize (Zea mays, L.) Hybrids Under Salinity Stress Conditions

Zalama

Kishk

2017

Journal of Plant Production

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“…Moreover, salinity stress results in a decline in nutrient uptake and imbalance of essential nutrients. For instance potassium concentration (K + c) and the K/Na ratio decrease with salinity stress (Sholi, 2012).…”

Section: Introductionmentioning

confidence: 99%

Some physiological responses of wheat and bean to soil salinity at low matric suctions

Khatar

Mohammadi

Shekari

2017

International Agrophysics

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A b s t r a c t. The effect of soil matric suction (2-33 kPa) and salinity (soil solution electrical conductivity 0.7-8 dS m -1 for bean and 2-20 dS m -1 for wheat) on some physiological characteristics of bean and wheat in a clay loam soil under greenhouse condition was investigated. The results showed that the leaf chlorophyll content index and potassium concentration decrease under salinity stress and increase with matric suction from 2 to 33 kPa suction for both plants. The wheat chlorophyll content index declines during the stress spell but bean chlorophyll content index remains nearly constant. The lowest values of the content of soluble sugars and the highest values of leaf proline content are observed at 2 kPa matric suction (highest aeration stress) for bean and wheat. As matric suction increases from 2 to 6 kPa, the soluble sugars increases and proline content decreases significantly and then soluble sugars decreases and proline content increases until 10 kPa suction, and the soluble sugars remains nearly constant at the higher matric suctions for both plants. While the electrical conductivity effect on the soluble sugars is not significant, the values of proline content for both crop increase significantly with electrical conductivity. It was shown that the aeration stress can result in more considerable and rapid physiological responses, in comparison with salinity stress. There is a strong correlation between wheat and bean chlorophyll content index and potassium concentration under salinity and aeration stresses.K e y w o r d s:

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“…Tomato is a member of the nightshade family and cultivated for fresh and processing purposes as an annual crop [5]. Additionally, this crop is used as a model plant to study physiology to molecular genetics and genomics in the angiosperms [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Salinity represents a substantive threat to tomato production [8]; it causes considerable reductions in tomato growth and yield [2]. Most commercial cultivars of tomato are considered to be moderately sensitive to salt stress, which affects seed germination and the vegetative and reproductive stages of growth [5,9,10]. Ongoing efforts to improve salt tolerance in tomato using plant breeding, biotechnological approaches and other management practices have met with limited success due to the genetic and physiological complexity of the traits involved in salt tolerance [4,7,10,11].…”

Section: Introductionmentioning

confidence: 99%

Grafting Tomato as a Tool to Improve Salt Tolerance

Singh

Kumar

et al. 2020

Agronomy

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Salinity in soil or water is a serious threat to global agriculture; the expected acreage affected by salinity is about 20% of the global irrigated lands. Improving salt tolerance of plants through breeding is a complex undertaking due to the number of traits involved. Grafting, a surgical mean of joining a scion and rootstock of two different genotypes with the desired traits, offers an alternative to breeding and biotechnological approaches to salt tolerance. Grafting can also be used to circumvent other biotic and abiotic stresses. Increasing salinity tolerance in tomato (Solanum lycopresicum L.), a highly nutritious and economical vegetable, will have greater impact on the vegetable industry, especially in (semi) arid regions where salinity in soil and water are more prevalent. Besides, plants also experience salt stress when water in hydroponic system is recycled for tomato production. Grafting high yielding but salt-susceptible tomato cultivars onto salt-resistant/tolerant rootstocks is a sustainable strategy to overcome saline stress. Selection of salt-tolerant rootstocks though screening of available commercial and wild relatives of tomato under salt stress conditions is a pre-requisite for grafting. The positive response of grafting exerted by tolerant rootstocks or scion-rootstock interactions on yield and fruit characteristics of tomato under saline conditions is attributed to several physiological and biochemical changes. In this review, the importance of tomato grafting, strategies to select appropriate rootstocks, scion-rootstock interaction for growth, yield and quality characteristics, as well as the tolerance mechanisms that (grafted) plants deploy to circumvent or minimize the effects of salt stress in root zones are discussed. The future challenges of grafting tomato are also highlighted.

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Effect of Salt Stress on Seed Germination, Plant Growth, Photosynthesis and Ion Accumulation of four Tomato Cultivars

Cited by 33 publications

References 13 publications

Evaluation of Seed Germinability and Field Emergence Of Some Maize (Zea mays, L.) Hybrids Under Salinity Stress Conditions

Evaluation of Seed Germinability and Field Emergence Of Some Maize (Zea mays, L.) Hybrids Under Salinity Stress Conditions

Some physiological responses of wheat and bean to soil salinity at low matric suctions

Grafting Tomato as a Tool to Improve Salt Tolerance

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