Salt resistant crop plants

Roy, Stuart J.; Negrão, Sónia; Tester, Mark

doi:10.1016/j.copbio.2013.12.004

Cited by 918 publications

(694 citation statements)

References 89 publications

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“…This mechanism contributes to the gradual adjustment of osmotic salts in plants. Other drawback of salinity is the toxic action of salt excesses in irrigation water, which promotes abscission and leaf senescence, with the consequent reduction in emission of leaves and leaf area of plants (Roy et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

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Papaya seedlings irrigation with saline water in soil with bovine biofertilizer

Neto

Cavalcante

Mesquita

et al. 2016

Chilean J. Agric. Res.

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Water used for irrigation in semiarid regions of the world is not always of good quality, and may contain salts levels that inhibit plants growth. This study was conducted to evaluate the growth of papaya (Carica papaya L.) 'Golden' seedlings irrigated with saline water in soil with and without bovine biofertilizer produced by anaerobic fermentation of a mixture of fresh bovine manure and water. The experiment was carried out in Areia County, Paraiba State, Brazil. Treatments were distributed in randomized blocks using a factorial design 5 × 2 relative to five salinity levels in irrigation water of 0.5, 1.0, 2.0, 3.0 and 4.0 dS m -1 in soil with and without bovine biofertilizer, corresponding to 10% of the substrate volume. At 90 d after emergence (DAE), both the electrical conductivity (EC) in soil saturation extract, biometric growth and DM production of papaya seedlings were evaluated. Increased salinity from 0.5 to 4.0 dS m -1 raised, within 90 DAE, soil EC of saturation extract (ECse) from 1.19 to 3.95 dS m -1 and from 1.23 to 3.63 dS m -1 in treatments with and without bovine biofertilizer, respectively. Also, the increase in water salinity from 0.5 dS m -1 to the estimated maximum values ranging from 1.46 to 2.13 dS m -1 stimulated seedling height to 11.42 and 18.72 cm in soil with and without bovine biofertilizer, respectively. Higher salinity levels in irrigation water increased soil salinity levels to values that inhibited both growth and quality of papaya seedlings, but with less severity when treated with bovine biofertilizer.

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Section: Resultsmentioning

confidence: 99%

“…In addition to these limitations, salt stress initially causes stomatal closure and increased leaf temperature, which results in loss of growth, leaf expansion and quality of seedlings (Roy et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Papaya seedlings irrigation with saline water in soil with bovine biofertilizer

Neto

Cavalcante

Mesquita

et al. 2016

Chilean J. Agric. Res.

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“…Resistance to salinity stress is controlled by few genes [25] or by the complex interaction of several genes [26]. The gene overexpression confers lower cellular damage, improvement of root and shoot growth and maintenance of photosynthetic capacity [27]. At higher concentrations of sodium chloride in the soil, both parameters (assimilation rate and stomatal conductance to water vapor) decreased drastically for all varieties,suggesting that under high salinity the osmotic effect become important in CO 2 assimilation.…”

Section: Effect Of Soil Salinity On Leaf Photosynthesismentioning

confidence: 99%

The influence of soil salinity on volatile organic compounds emission and photosynthetic parameters of Solanum lycopersicum L. varieties

et al. 2017

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Soil salinity is one of the best known stress factors of plants that can lead to crop yield reduction. Therefore, it is important to identify new tolerance varieties of plants that can grow on saline soils. We have studied the influence of salt on five different tomato varieties from the Western region of Romania and compared them with a commercial hybrid and found that one of them (Rudna) is a very salt-tolerant variety (up to 200 mM NaCl). The assimilation rates and stomata conductance of water vapour are affected by salinity but some of the local varieties of tomato exhibit quite good tolerance. We found that all plants under salinity stress emit (Z)-3-hexenol (a C6, green leaf volatile) and the emission of all terpenes increased in proportion to the salt concentration. The emission of three terpenes, (Z)-beta-ocimene. 2-carene and beta-phellandrene, have been quantitatively correlated with salt concentration.

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“…Salt tolerance is often defined as the plant ability to keep continuous growth under high soluble salt concentrations while cell metabolism remains unchanged (Munns, 2002;Roy et al, 2014). Currently, plant capacity to tolerate saline soil is of great importance, because the number of problems caused by soil salinity increases on a yearly basis.…”

Section: Introductionmentioning

confidence: 99%

“…Cell metabolism disturbances affect the photophosphorylation, respiratory chain, nitrogen assimilation and protein metabolism rates (Munns, 2002). Plant response to salinity is a complex phenomenon, so that, several studies have been carried out in order to elucidate the mechanisms used by plants to adapt to salt stress (Munns, 2010;Rahnama et al, 2011;Deinlein et al, 2014;Roy et al, 2014;Gupta and Huang, 2014). The salt-tolerance of a certain species depends on the efficiency of physiological mechanisms that make plants more tolerant to high salt concentrations (Flowers, 2004;Moya et al, 1999;Lacerda et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Morpho-physiological adaptation of Jatropha curcas L. to salinity stress

Cavalcante¹,

Santos²,

Filho³

et al. 2018

Aust J Crop Sci

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The aim of the current study is to assess the growth response, biochemical changes, photosynthetic pigments content and gas exchanges of physic nut (Jatropha curcas) grown under natural saline conditions. The experiment was arranged in a completely randomized design based on the following soil electrical conductivities: 0.29 dS.m -1 (control), 1.76 dS.m -1 (moderate salt concentration), 2.61 dS.m -1 (high salt concentration), 3.79 dS.m -1 (very high salt concentration). Physic nut plants were kept under saline conditions for 19 days in greenhouse. Plant growth analyses were performed on a weekly basis. Plant biomass allocation was quantified at the end of the experiment. Leaf gas exchange, stomatal conductance, Fv/Fm and quantum yield were quantified 102 days after planting. Photosynthetic pigments, amino acids, proline and carbohydrates in fresh leaf tissue were also quantified. The leaf antioxidant enzymes catalase (CAT) and ascorbate peroxidase (APX) were quantified. Although there was no alteration in biomass allocation, the initial growth of J. curcas was gradually reduced by increasing salt concentration, which was observed through reduced plant height, stem diameter, and total number of leaves. Soil electrical conductivity 3.79 dS.m -1 was lethal to seedlings. Seedlings exposed to salt stress had their photosynthesis, stomatal conductance, transpiration and effective photochemical efficiency reduced, and their catalase and ascorbate peroxidase enzyme activity increased. Amino acids, proline and carbohydrate concentrations increased due to salt stress, whereas there was decrease in the chlorophyll content. J. curcas is sensitive to soil salinity at electrical conductivity levels higher than 1.76 dS.m -1 . To some extent, salinity effects can be relieved by osmolyte accumulation and by greater antioxidant activity; however, these factors were not sufficient to keep plant growth within normal rates.

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Salt resistant crop plants

Cited by 918 publications

References 89 publications

Papaya seedlings irrigation with saline water in soil with bovine biofertilizer

Papaya seedlings irrigation with saline water in soil with bovine biofertilizer

The influence of soil salinity on volatile organic compounds emission and photosynthetic parameters of Solanum lycopersicum L. varieties

Morpho-physiological adaptation of Jatropha curcas L. to salinity stress

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