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Almansouri, M; Kinet, Jean‐Marie; Lutts, Stanley

doi:10.1023/a:1010378409663

Cited by 456 publications

(88 citation statements)

References 37 publications

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“…Poljakoff-Mayber et al (1994) found that the elongation of the embryonic axis of Kosteletzkya virginica was strongly inhibited by high levels of NaCl in irrigation solutions. Alternatively, NaCl may also increase the osmotic potential of the media causing inhibitory effects on seed imbibition (Almansouri et al, 2001). There was significance (p<0.0001) the interaction between P. divisum and NaCl induced water deficit, which led to reduction of shoot and root length, especially at -0.6 and -0.8 MPa.…”

Section: Discussionmentioning

confidence: 94%

“…However, salts and other solutes in the medium cause osmotic inhibitory effects on the seed's water uptake and retard and/or suppress germination. One of the most important abiotic factors limiting plant germination and early seedling stages is water stress brought about by drought and salinity (Almansouri et al, 2001), which are widespread problems around the world (Soltani et al, 2006). Salinity and drought affect the plants in a similar way (Katerji et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Al-Taisan¹

2010

American Journal of Applied Sciences

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Problem statement: Water stress due to drought and salinity is probably the most significant abiotic factor limiting plant and also crop growth and development. Salinity and drought stresses are physiologically related, because both induce osmotic stress and most of the metabolic responses of the affected plants are similar to some extent. Water deficit affects the germination of seed and the growth of seedlings negatively. Temperature is an exceedingly important factor in seed germination. It directly affects whether a plant can sprout and, if so, how long it will take to emerge from the ground. Approach: The objective of this investigation was to determine the effect of four alternating temperature regime, drought and salt stress on germination characteristics of Pennisetum divisum. Seeds were germinated at four alternating temperatures (10/20, 15/25, 20/35 and 25/40°C at 12 h light). Seeds were also germinated with the iso-osmotic concentrations of sodium chloride (NaCl) or in polyethylene glycol PEG8000 (0, -0.2, -0.4, -0.6 and -0.8 MPa) for 14 days. Concentrations were applied to determine their effects on seed germination and seedling growth under laboratory conditions. The effects of different osmotic concentrations of NaCl and PEG were compared to distilled water (control). Results: Optimum germination was attained at 15/25°C which corresponds to temperatures prevailing during spring time. The highest values of germination parameters were obtained with no osmotic potential (0 MPa) under 15/25°C. The final germination percentage and rate of germination in the Pennisetum divisum treated seeds were decreased with the increase of the osmotic potential. At treatment by PEG, the germination was severely decreased at -0.6 MPa. While, no germination occurred at-0.8 MPa by NaCl. The results of the effects of the different osmotic potential of NaCl and PEG on the Radicle Length (RL) and the Hypocotyl Length (HL) mm of the tested P. divisum seeds were retarded when compared to the control. Conclusion: Results indicated germination sensitive to both the stresses. However, seedling growth was more sensitive to NaCl than was germination. However, seedling growth was more sensitive to NaCl than was germination responses to water stress induced by PEG and NaCl. Results also indicated that seed germination of P. divisum is less sensitive to osmotic potential indicating that the seeds of the species are efficient in osmotically adjusting to soluble salts. This suggests the possibility of revegtating moderately salt affected soils.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Al-Taisan¹

2010

American Journal of Applied Sciences

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“…1 Crop productivity is detrimentally affected by abiotic and biotic factors and the most important one is salt stress. 2,3 Thus, it is important that develop new strategies to alleviate the negative effects of salt on seed germination thereby crop establishment on saline soils.…”

Section: Introductionmentioning

confidence: 99%

Salicylic Acid and Calcium Treatments Improves Wheat Vigor, Lipids and Phenolics Under High Salinity

Candan¹,

Elif²

2016

ACSi

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Seed vigor is a complex physiological trait required to ensure the rapid and uniform emergence of plants in the field under different environmental conditions. Therefore, salicylic acid (SA, 0.5 mM) and calcium (Ca 2+ , 50 mM) priming were used as exogenous growth enhancers to stimulate wheat (Triticum durum Desf. cv. Yelken) seed vigor under high salinity. The main aim was to address whether priming of wheat with SA, Ca 2+ and SA+Ca (SA, 0.5 mM + Ca 2+ , 50 mM; their combination) could bring about supplementary agronomic benefits particularly under stressful environments such as salinity. Exogenous application of SA or Ca 2+ alone improved plant behavior in the presence of salinity stress. Nevertheless, the best results in terms of growth, seed vigor and total phenolic -flavonoids, chlorophyll -carotenoids contents and phenylalanine ammonia-lyase (PAL), ascorbic acide oxidase (AAO) activities and lipid peroxidation levels (LPO) were obtained in response to the combined SA+Ca treatment.

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“…Salt and osmotic stresses are also responsible for both inhibition or delayed seed germination and seedling establishment [28] [19]. It was reported that osmo and hydro priming of chickpea seeds with mannitol and water alleviated the adverse effects of water deficiency and salt stress on seedling growth.…”

Section: Physiological Effectsmentioning

confidence: 99%

Alternative Approach for Drought Tolerance; Seed Priming and Physiology

2015

International Conference on Chemical, Agricultural and Biological Sciences (CABS-2015) Sept. 4-5, 2015 Istanbul (Turkey)

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Untitled

Cited by 456 publications

References 37 publications

Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Salicylic Acid and Calcium Treatments Improves Wheat Vigor, Lipids and Phenolics Under High Salinity

Alternative Approach for Drought Tolerance; Seed Priming and Physiology

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