Application of silicon sources increases silicon accumulation in perennial ryegrass turf on two soil types

Nanayakkara, U. N.; Uddin, W.; Datnoff, L. E.

doi:10.1007/s11104-007-9488-x

Cited by 41 publications

(33 citation statements)

References 21 publications

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“…Figure 1 shows that in each incubation time and in both moisture regimes, application of 200 mg Si kg −1 in the form of silicic acid caused significant increase in soil extractable Si. Enhancement of extractable Si after Si fertilization has also been reported by others (Nanayakkara, Uddin, and Datnoff 2008). After addition of Si to soil, a considerable part enters into soil solution and subsequently the extractable Si increases (Matichenkov and Calvert 2002).…”

Section: Extractable Siliconsupporting

confidence: 62%

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Changes in Extractable Si, Fe, and Mn as Affected by Silicon, Salinity, and Waterlogging in a Sandy Loam Soil

Saleh

Najafi

Oustan

et al. 2013

Communications in Soil Science and Plant Analysis

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Silicon (Si) is one of the most abundant elements in the earth's crust, although its availability may be affected by some edaphic and abiotic factorssuch as soil moisture and salinity. In a laboratory experiment, effects of silicon (Si), salinity, and soil moisture on changes of extractable Si, iron (Fe), and manganese (Mn) concentrations were investigated on a sandy loam calcareous soil. The experiment was arranged as a factorial completely randomized design with three replications. Two levels of Si (8 and 200 mg per kg of soil), three salinity levels [0.46 dS m −1 , 8 dS m −1 as sodium chloride (NaCl), and 8 dS m −1 as four-salt combination], two soil moisture regimes (-20 kPa and waterlogged), and four incubation times (0, 7, 30, and 45 days) were applied. Salt composition consisted of sodium chloride, sodium sulfate, calcium chloride, and magnesium sulfate at a molar ratio of 4:2:2:1. Acetic acid-extractable Si, Fe, and Mn were determined after 0, 7, 30, and 45 days of incubation. Waterlogging caused significant increase in the extractable Si, Fe, and Mn. Soil salinity of 8 dS m −1 , only in the form of sodium chloride, resulted in a marked decrease in extractable Si, Fe, and Mn. Silicon addition enhanced the soil Si concentration, with no effect on Fe and Mn. Equilibrium time for Si and Fe was 30 days, whereas Mn concentration reached to a constant level after 1 week of waterlogging. It was concluded that Si, Fe, and Mn fertilizers should be applied in sufficient amounts to the saline soils to prevent their deficiencies in plants. Meanwhile, overfertilization in waterlogged conditions must be avoided, because of the probability of nutrient imbalance or toxicity.

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Section: Extractable Siliconsupporting

confidence: 62%

“…Silicon fertilization leads to an increase in available Si in soil (Nanayakkara, Uddin, and Datnoff 2008). Soil solution Si content has been shown to increase immediately after Si application and then decrease because of some processes such as adsorption on Al and Fe oxides (Opfergelt et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Changes in Extractable Si, Fe, and Mn as Affected by Silicon, Salinity, and Waterlogging in a Sandy Loam Soil

Saleh

Najafi

Oustan

et al. 2013

Communications in Soil Science and Plant Analysis

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“…rice (Takahashi et al 1990;Tamai and Ma 2003), wheat (Van der Vorm 1980;Jarvis 1987;Rains et al 2006), ryegrass (Lolium perenne) (Jarvis 1987;Nanayakkara et al 2008) and barley Nikolic et al 2007) and some cyperaceous plants, take up larger Si amounts compared with other species, indicating involvement of an energy-dependent transport system. By contrast, most dicots take up less Si following the concentration gradient (Takahashi et al 1990).…”

Section: Silicon Uptake and Transportmentioning

confidence: 99%

Silicon in vascular plants: uptake, transport and its influence on mineral stress under acidic conditions

Pontigo

Ribera

Gianfreda

et al. 2015

Planta

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So far, considerable advances have been achieved in understanding the mechanisms of Si uptake and transport in vascular plants. This review presents a comprehensive update about this issue, but also provides the new insights into the role of Si against mineral stresses that occur in acid soils. Such information could be helpful to understand both the differential Si uptake ability as well as the benefits of this mineral element on plants grown under acidic conditions. Silicon (Si) has been widely recognized as a beneficial element for many plant species, especially under stress conditions. In the last few years, great efforts have been made to elucidate the mechanisms involved in uptake and transport of Si by vascular plants and recently, different Si transporters have been identified. Several researches indicate that Si can alleviate various mineral stresses in plants growing under acidic conditions, including aluminium (Al) and manganese (Mn) toxicities as well as phosphorus (P) deficiency all of which are highly detrimental to crop production. This review presents recent findings concerning the influence of uptake and transport of Si on mineral stress under acidic conditions because a knowledge of this interaction provides the basis for understanding the role of Si in mitigating mineral stress in acid soils. Currently, only four Si transporters have been identified and there is little information concerning the response of Si transporters under stress conditions. More investigations are therefore needed to establish whether there is a relationship between Si transporters and the benefits of Si to plants subjected to mineral stress. Evidence presented suggests that Si supply and its subsequent accumulation in plant tissues could be exploited as a strategy to improve crop productivity on acid soils.

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“…The largest variation was observed for Mn -0.37 to 1.5 g kg -1 . Nanayakkara et al (2008) also observed that the uptake of several macro and micronutrients by perennial ryegrass (Lolium perenne L.) was not influenced by increasing amounts of Si applied to the soil, nor the type of soil. This non-dependence of Si, as it happens in our case, raises the question why accumulate so much Si especially in aboveground organs, if the same plants can live healthily with much less amounts without decreasing yields and the resistence to diseases.…”

Section: Discussionmentioning

confidence: 90%

“…The uptake of Si by perennial ryegrass is influenced by the soil type, source of Si and rate of Si applications (Nanayakkara et al, 2008) and the Si content of the plants increased with increasing rates of applications.…”

Section: Introductionmentioning

confidence: 99%

The uptake of macronutrients by an active silicon accumulator plant growing in two different substrata

Reboredo

Lidon

Pessoa

et al. 2013

Emir. J. Food Agric

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Pennisetum clandestinum (Graminae/Poaceae) an active Si-accumulator, was cultivated in two different substrata, both with reduced Si solubility. Plants growing in organic-rich soils contained much less Ca, K, Na and Si, than species growing in sandy soils. Although the highest macronutrient concentrations were associated to the highest Si levels in the organs of P. clandestinum, the R correlation values indicate that Si does not influence the internal balance and the uptake of these elements. In ca 65% of the cases roots have the highest average values regardless of the type of culture, while the contents of Mg in the shoots and roots of P. clandestinum were generally not significantly different (P>0.05). A significant decline of the macronutrient levels associated to the shoots and roots of P. clandestinum was observed from the 4 th to the 6 th month assay, especially for Ca in both organs, while for Mg and Na the decline is focused mainly in the shoots; K and Si decline is generally below 10%. When average values of Si in shoots and roots of plants collected from organicrich and sandy soils were plotted against the average concentrations of Ca, K, Mg and Na in the same organs, weak but positive R correlation values were obtained -the highest R values were observed for Na and K and the lowest for Ca and Mg, regardless of the culture. Exception for the high R value observed for K, although the influence of Si on the K status in the whole plant is time-depending -R values, diminished from the 4 th to the 6 th month, as it happens in the majority of the cases. In conclusion, P. clandestinum can grow well and healthily in substrata with acid pH values and high carbonate content and low solubility of Si suggesting that the definition of the essentiality of Si, even in a Si-accumulator plant is still a matter of great controversy.

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Application of silicon sources increases silicon accumulation in perennial ryegrass turf on two soil types

Cited by 41 publications

References 21 publications

Changes in Extractable Si, Fe, and Mn as Affected by Silicon, Salinity, and Waterlogging in a Sandy Loam Soil

Changes in Extractable Si, Fe, and Mn as Affected by Silicon, Salinity, and Waterlogging in a Sandy Loam Soil

Silicon in vascular plants: uptake, transport and its influence on mineral stress under acidic conditions

The uptake of macronutrients by an active silicon accumulator plant growing in two different substrata

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