Ameliorating effects of Ca(NO3)2 on growth, mineral uptake and photosynthesis of NaCl-stressed guava seedlings (Psidium guajava L.)

Ebert, G.; Eberle, Jürgen; Ali-Dinar, Hassan; Lüdders, P.

doi:10.1016/s0304-4238(01)00325-9

Cited by 64 publications

(58 citation statements)

References 14 publications

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“…Lacerda et al (2004) verified a reduction of Na + in leaves of sorghum plants due to the addition of Ca 2+ , which corroborated with the results obtained in the present study. For K + , the results of this work contradict those of Lacerda et al (2004) and those of Ebert et al (2002) who verified that the addition of Ca 2+ increases K uptake in sorghum and guava plants respectively, since K + in Megathyrsus maximus cv. Mombaça was not altered as a function of Ca 2+ doses.…”

Section: Levels Of Nacontrasting

confidence: 97%

“…This corroborates with Melloni et al (2000) who verified an increase in Na + contents in leaves and stems when they were submitted to doses of NaCl in the presence of Ca 2+ in the culture medium when using external Ca 2+ application to alleviate the effects of Na + on mineral nutrition. Ebert et al (2002) studied the effects of external Ca 2+ concentrations on nutrient uptake in guava seedlings submitted to NaCl and verified an increase in K + concentration in the aerial part with the increase of Ca 2+ levels in the culture medium. Lacerda et al (2004) verified a reduction of Na + in leaves of sorghum plants due to the addition of Ca 2+ , which corroborated with the results obtained in the present study.…”

Section: Levels Of Namentioning

confidence: 91%

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Mombaça Grass Responds to Partial Replacement of K+ by Na+ with Supplemental Ca2+ Addition in Low Fertility Soil

Carneiro¹,

Silva²,

Santos³

et al. 2017

JAS

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Partial replacement of potassium by sodium may be an alternative to reduce the cost of pasture fertilization and reduce the dependence on imported potassium sources. The objective of this study was to evaluate different sources and doses of calcium as enhancers of sodium effect on the partial replacement of potassium by sodium. Here, Mombaça grass (Megathyrsus maximus) was grown on low fertility soil. The experiment was conducted in a factorial (3 × 5) based on a completely randomized design with 4 replications as follow: three sources of Ca ) and two additional treatments (fertilization with 100% of K + without application of Ca 2+ and one control without any fertilization). Potassium was partially replaced (25%) by Na + prior to Ca 2+ additions. Plant height, growth rate, dry weight, Na + , K + , K + /Na + and shoot proline contents were evaluated as well as Na + levels and the electrical conductivity of the soil. The results show that the addition of Ca 2+ provided better plant development when K + was partially replaced by Na + and that the supply of Ca 2+ reduced the absorption of sodium by plants. The partial replacement of K + by Na + did not increase soil salinity or caused stress to the plants.

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Section: Levels Of Nacontrasting

confidence: 97%

Section: Levels Of Namentioning

confidence: 91%

Mombaça Grass Responds to Partial Replacement of K+ by Na+ with Supplemental Ca2+ Addition in Low Fertility Soil

Carneiro¹,

Silva²,

Santos³

et al. 2017

JAS

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“…Addition supplying of KN to the salt treated plants may reduce toxic ions uptake as well improve K and N status of salt treated plants. Ebert et al, [13] found that supplying of Ca(NO 3 ) 2 at 10 mM had a beneficial effect on growth and metabolism of NaCl treated guava seedlings.…”

Section: Resultsmentioning

confidence: 99%

“…Adverse salinity effects on plant growth and tolerance to salinity can be altered by mineral nutrition [8,13,15] . It is well known that addition supply of Ca or NO 3 to salt stressed plants improves the tolerance to salinity [13,22,31] . However, there is little information available about the effect of the increased KNO 3 (KN) at the saline conditions on the salinity tolerance of perennial ryegrass.…”

Section: Introductionmentioning

confidence: 99%

Foliar and Soil Application of Potassium Nitrate Affects the Tolerance of Salinity and Canopy Growth of Perennial Ryegrass (Lolium perenne var Boulevard)

Tabatabaei¹,

Fakhrzad²

2008

American J. of Agricultural and Biological Sciences

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Abstract:Two experiments were conducted to determine the effect of KNO3 application on perennial ryegrass salinity tolerance. Two NaCl levels (0 and 60 mM) factorially combined with four KNO3 (KN) levels (0, 5, 10 and 15 mM) as the treatments. The KN was applied either to the soil or foliarly sprayed. The results showed that in both experiments the increased salinity significantly reduced the vegetative characteristics of ryegrass. In the salinity treatment, supplying KN at 10 mM concentraion increased the fresh and dry weight as well leaf area, however, the growth of the plants was lower at the 0 and 15 mM concentration of KN. The concentration of N, NO3, P and K was reduced in the salinity treatments, but the concentration of Na and Cl was increased. Salinity (NaCl60) significantly reduced the K/Na ratio, while it was increased when the KN was increased in the solution. The concentration of Cl was significantly reduced when KN increased in the solution so that its concentration in NaCl60 and 0 mM KN was 75% in soil and 66.6% in foliar sprays treatment, respectively, higher than that in NaCl60 and 15 mM treatment. Combination of both salinity and KN concentration remarkably increased the proline content. The concentration of chlorophyll was reduced in NaCl60 treatment however; additional supplying of KN increased the chlorophyll concentration. In NaCl60 treatment, the highest survival plants were observed at 10 mM KN as either foliar or soil application. It seems that the reduced Cl concentration, increased proline and K/Na ratio were the main reason for the improved tolerance for salinity of the perennial ryegrass in the 10 mM KN concentration.

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“…As mentioned in the Introduction, it is well known that Ca 2+ can alleviate the adverse effects of salinity on many plant species (Agboola et al, 1998;Ebert et al, 2002;Marschner, 1995;Munns, 2002;Rengel, 1992), and there are many reports demonstrating this protective role of calcium in different systems and under varied experimental conditions. For example, it has been shown that addition of Ca 2+ to root media containing NaCl favours plant growth in both halophytic (Colmer et al, 1996) and non-halophytic species (Cramer et al, 1986;Kinraide, 1999;LaHaye and Epstein, 1996;Suhayda et al, 1992).…”

Section: Discussionmentioning

confidence: 99%

Mitigation of Salt Stress-Induced Inhibition of Plantago crassifolia Reproductive Development by Supplemental Calcium or Magnesium

Grigore

Boscaiu

Lull

et al. 2012

Not Bot Hort Agrobot Cluj

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In Plantago crassifolia, a moderate halophyte characteristic of borders of salt marshes in the Mediterranean region, reproductive development is more sensitive to high soil salinity than vegetative growth. To investigate the possible role of calcium and magnesium salts in the responses of this species to salt stress, adult plants were submitted over a 2-month period to treatments with 300 mM NaCl-a concentration which affects, but does not completely inhibit seed formation in P. crassifolia-either alone or combined with low concentrations of CaCl 2 (10 mM) or MgCl 2 (20 mM). The NaCl treatment did not affect plant vegetative growth and had a stimulating effect on flowering. Yet almost half the spikes produced had aborted seeds, and the effect on seed number and quality-estimated by their mean weight and germination capacity-was obviously deleterious. Addition of calcium or magnesium chloride during the saltstress treatment completely counteracted the negative effect of NaCl on the 'reproductive success' of the plants: the number, weight and germination frequency of the seeds were similar to that in the control, non-stressed plants. These results indicate that both divalent cations can suppress or mitigate the deleterious effects of salt stress. While this protective role is well established in the case of calcium, we provide here the first experimental evidence of a similar function for magnesium.

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Ameliorating effects of Ca(NO3)2 on growth, mineral uptake and photosynthesis of NaCl-stressed guava seedlings (Psidium guajava L.)

Cited by 64 publications

References 14 publications

Mombaça Grass Responds to Partial Replacement of K+ by Na+ with Supplemental Ca2+ Addition in Low Fertility Soil

Mombaça Grass Responds to Partial Replacement of K+ by Na+ with Supplemental Ca2+ Addition in Low Fertility Soil

Foliar and Soil Application of Potassium Nitrate Affects the Tolerance of Salinity and Canopy Growth of Perennial Ryegrass (Lolium perenne var Boulevard)

Mitigation of Salt Stress-Induced Inhibition of Plantago crassifolia Reproductive Development by Supplemental Calcium or Magnesium

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