Effects of Salinity on Photosynthetic Parameters of Barley (Hordeum Vulgare L.) Grown Under a Triple Line Source Sprinkler System in The Field

Belkhodja, Ramzi; Medrano, H.; Abadía, A.; Abadı́a, Javier

doi:10.1007/978-94-009-0173-5_877

Cited by 11 publications

(15 citation statements)

References 9 publications

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“…Leaves were dark-adapted for 15 minutes, using the dark adaptation clips and then illuminated for six seconds to induce fluorescence. The leaves were continuously illuminated with a white actinic light ( were maximum fluorescence yield from PSII following a saturating pulse of photons in a light-adapted plant (FM'), steady state yield of PSII fluorescence in the light (F s ), and electron transport rate through PSII (ETR) (Belkhodja et al, 1999;Maricle et al, 2007), were determined during the day between 11:00 am and 1:00 pm. Data were collected between 9:30 am and 1:00 pm at light intensity (PAR) between 500 and 700 µmol photons m -2 s -1 .…”

Section: Greenhouse Pot Experimentmentioning

confidence: 99%

“…Whereas methods of screening for salt tolerance based on yield response measurements have been employed with good results, they are time consuming and expensive, thus needing the use of indirect ones (Belkhodja et al, 1999). These include physiological traits such as photosynthesis, which are equally important and quite specific in indicating salt tolerance.…”

Section: Introductionmentioning

confidence: 99%

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NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

Ambede

Netondo

Mwai

et al. 2012

Braz. J. Plant Physiol.

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The effects of NaCl salinity on seed germination, growth, physiology, and biochemistry of two bambara groundnut landraces (Vigna subterranea (L.) Verdc), Kakamega (white seed coat) and Mumias (red seed coat), were investigated with the aim of establishing traits, which can provide a basis for breeding to salt tolerance in groundnuts. A study was conducted under laboratorial and greenhouse conditions. Bambara groundnut seeds and plants were subjected to five concentrations of NaCl solutions with several electrical conductivities: 0 (control), 6.96, 12.93, 19.89, and 25.86 dS m -1 . Germination percentage, growth, chlorophyll fluorescence, and leaf chlorophyll content were determined. Sodium chloride salinity (p<0.05) significantly decreased germination and plant growth in both landraces. Mumias had significantly higher total chlorophyll, chlorophyll a and b content compared to Kakamega landrace. Salinity significantly decreased Fv/Fm ratio and electron transport rate in the two landraces, however there were no significant (p>0.05) differences in the Fv/Fm values for Mumias' landrace, as compared to the Control. Overall, Mumias' landrace seeds seemed to be more salt-tolerant at higher salinity levels compared to Kakamega. A greater reduction in growth in Mumias than in Kakamega is a possible indicator for salt tolerance. The chlorophyll fluorescence parameters may not be used to identify salt sensitivity between the two landraces. The results indicated that leaf area and seed germination were suitable parameters for screening the two bambara landraces for salt tolerance.

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Section: Greenhouse Pot Experimentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

Ambede

Netondo

Mwai

et al. 2012

Braz. J. Plant Physiol.

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“…Salt stress is considered to be an important environmental factor, limiting plant growth and productivity in today's agriculture (Boyer, 1982;Kingsbury et al, 1984;Belkhodja et al, 1999;Allakhverdiev et al, 2000), especially in arid or semi-arid regions (Siler et al, 2007) or irrigated areas (Szabolcs, 1994). In crop plants several life processes are particularly sensitive to soil and water salinity, since high salt concentration has a threefold effect: it limits water availability to the roots (osmotic stress); it can cause ionic stress when the salt is 368 taken up by plants; and it also influences nutrient uptake and translocation (Bagci, 2003;Siler et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…In any case, to maintain the photosynthetic rate at a promising level during salt stress may be an advantageous feature, since it makes adequate growth and biomass production possible. Furthermore, the estimation of net assimilation rate might facilitate discrimination between salt-tolerant and non-tolerant cultivars of barley (Belkhodja et al, 1999). As described above, the effects of salt stress and salt tolerance have been widely examined, and a large body of data is available on the salt tolerance of wheat and barley and on the effects of salinity on these plants (Belkhodja et al, 1999;El-Shintinawy, 2000;Bagci, 2003;Veselov et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

photosynthesis in the 7H Asakaze komugi/Manas wheat/barley addition line during salt stress

Dulai

Molnár

Haló

et al. 2010

Acta Agronomica Hungarica

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The photosynthetic responses induced by NaCl were investigated in the 7H Asakaze komugi/Manas wheat/barley addition line developed in the Agricultural Research Institute, Martonvásár, Hungary, in the wheat (Triticum aestivum L.) cv. Asakaze komugi (Akom) and wheat line Martonvásári 9 kr1 (Mv9kr1) and in the barley (Hordeum vulgare L.) cv. Manas. An increase in the NaCl concentration of the nutrient solution to 200 mmol L −1 resulted in considerable stomatal closure and a decreased net CO 2 assimilation rate (A) in the wheat genotypes, while the changes in these parameters were less significant for barley and the 7H addition line. Parallel with this, a relatively high non-stomatal limitation (L m ) of A was observed in wheat genotypes, which was not significant in Manas or the wheat-barley addition line at this level of salt stress. At severe stress (300 mM L −1 NaCl concentration) A and stomatal conductance were strongly inhibited in all the genotypes examined; however, L m was less significant in the addition line and its parental wheat genotype. These preliminary results suggest that the 7H Akom/Manas addition line might be a good candidate for improving the salt tolerance of wheat in the future, and encourage further detailed physiological analysis of this addition line.

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“…Measurements of Chl a fluorescence parameters were attempted to evaluate the direct effects of salt stress on PSII photochemistry. Results revealed that NaCl treatment have no effect on leaf photochemistry, and photosystem II (PSII) remained resistant to salt stress as reported by Belkhodja [29] and Zribi [30] , they showed no significant change in the photosynthetic quantum yield (Fv/Fm) in response to NaCl treatments. It seems from the results that the decline in net photosynthesis (Pn) may result from a reduced stomatal conductance, but not to injuries to the photosynthetic apparatus, since PSII activity (estimated by the ratio Fv/Fm) of dark adapted leaves were preserved under salt stress (Table 2).…”

Section: Discussionmentioning

confidence: 56%

Effect of Exogenous 24-Epibrassinolide on Salt Resistance of watermelon (Citrullus lanatus L.) under Salinity Stress

Cheng¹,

Huang²,

Meng³

et al. 2015

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

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Keywords: 24-epibrassinolide, watermelon, salt stress, relative growth rate, gas exchange. Abstract. The present study investigates the role of 24-epibrassinolide (EBL) in inducing plant tolerance to salinity. Seedlings of watermelon (Citrullus lanatus L.) were grown in the presence of 70 mM NaCl and were sprayed with 10 -6 M EBL at 7 days after transplantation and were sampled at 28 day. The plants exposed to NaCl exhibited a significant decline in relative growth rate, net CO2 assimilation, stomatal conductance, transpiration and water use efficiency. However, the follow up treatment with EBL significantly improved the above parameters. EBL treated plants had greater relative growth rate compared to untreated plants when exposed to salt stress. Application of EBL increased photosynthesis by increasing stomatal conductance in both control and salt stressed plants and may have contributed to the enhanced growth. The water use efficiency was improved because CO2 assimilation is more important than the transpiration.

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Effects of Salinity on Photosynthetic Parameters of Barley (Hordeum Vulgare L.) Grown Under a Triple Line Source Sprinkler System in The Field

Cited by 11 publications

References 9 publications

NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

NaCl salinity affects germination, growth, physiology, and biochemistry of bambara groundnut

photosynthesis in the 7H Asakaze komugi/Manas wheat/barley addition line during salt stress

Effect of Exogenous 24-Epibrassinolide on Salt Resistance of watermelon (Citrullus lanatus L.) under Salinity Stress

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