Alleviating aluminum toxicity in an acid sulfate soil from Peninsular  Malaysia by calcium silicate application

Elisa, A. A.; Ninomiya, S.; Shamshuddin, J.; Ismail, Roslan

doi:10.5194/se-7-367-2016

Cited by 36 publications

(22 citation statements)

References 47 publications

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“…Studies have now shown the beneficial effects of CS on the growth and alleviation of biotic and/or abiotic stresses of plants24252627. In the present study, the dry weight of grain amaranths significantly increased and reached a maximum value when CS was added at the rate of 1.65 g/kg (Fig.…”

Section: Discussionsupporting

confidence: 59%

Influences of calcium silicate on chemical forms and subcellular distribution of cadmium in Amaranthus hypochondriacus L.

et al. 2017

Sci Rep

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A pot experiment was conducted to investigate the effects of calcium silicate (CS) on the subcellular distribution and chemical forms of cadmium (Cd) in grain amaranths (Amaranthus hypochondriacus L. Cv. ‘K112’) grown in a Cd contaminated soil. Results showed that the dry weight and the photosynthetic pigments contents in grain amaranths increased significantly with the increasing doses of CS treatments, with the highest value found for the treatment of CS3 (1.65 g/kg). Compared with the control, application of CS4 (3.31 g/kg) significantly reduced Cd concentrations in the roots, stems and leaves of grain amaranths by 68%, 87% and 89%, respectively. At subcellular level, CS treatment resulted in redistribution of Cd, higher percentages of Cd in the chloroplast and soluble fractions in leaves of grain amaranths were found, while lower proportions of Cd were located at the cell wall of the leaves. The application of CS enhanced the proportions of pectate and protein integrated forms of Cd and decreased the percentages of water soluble Cd potentially associated with toxicity in grain amaranths. Changes of free Cd ions into inactive forms sequestered in subcellular compartments may indicate an important mechanism of CS for alleviating Cd toxicity and accumulation in plants.

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Section: Discussionsupporting

confidence: 59%

Influences of calcium silicate on chemical forms and subcellular distribution of cadmium in Amaranthus hypochondriacus L.

et al. 2017

Sci Rep

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“…In acidic soils, Al toxicity to plants and soil infertility are the main limiting factors for crop growth (Adams, 1984;Kochian, 1995;Ulrich and Sumner, 1991;Kidd and Proctor, 2000;Eimil-Fraga et al, 2016;Elisa et al, 2016). Soil acidity directly affects crop growth through acidic reactions and shows indirect effects on crop growth by affecting nutrient availability.…”

Section: Introductionmentioning

confidence: 99%

Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops

Baquy

et al. 2017

Solid Earth

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Section: Introductionmentioning

confidence: 99%

Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops

Baquy¹,

Li²,

Xu³

et al. 2016

Preprint

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Abstract. Soil acidity has become a serious constraint in dry land crop production systems of acidic Ultisols in tropical and subtropical regions of southern China, where winter wheat and canola are cultivated as important rotational crops. Regardless of other common existing concerns in acidic Ultisols of southern China, it needs to be investigated whether soil acidity has any effect on wheat and canola growth. There is little information on the determination of critical soil pH as well as aluminium (Al) concentration for wheat and canola crops. The objective of this study was to determine the critical soil pH and exchangeable aluminium concentration (AlKCl) for wheat and canola production. Two pot cultures with two Ultisols from Hunan and Anhui were conducted for wheat and canola crops in a controlled growth chamber, with a completely randomized design. A soil pH gradient ranging from 3.7 (Hunan) and 3.97 (Anhui) to 6.5, with three replications, was used as a treatment. Aluminium sulfate (Al2(SO4)3) and hydrated lime (Ca(OH)2) were used to obtain the target soil pH levels. Plant height, shoot dry weight, root dry weight, and chlorophyll content (SPAD value) of wheat and canola were adversely affected by soil acidity in both locations. The critical soil pH and AlKCl of the Ultisol from Hunan for wheat were 5.29 and 0.56 cmol kg−1, respectively. At Anhui, the threshold soil pH and AlKCl for wheat were 4.66 and 2.36 cmol kg−1, respectively. On the other hand, the critical soil pH for canola was 5.65 and 4.87 for the Ultisols from Hunan and Anhui, respectively. The critical soil exchangeable Al for canola cannot be determined from the experiment of this study. The results suggested that the critical soil pH and AlKCl varied between different locations for the same variety of crop, due to the different soil types and their other soil chemical properties. The critical soil pH for canola was higher than that for wheat for both Ultisols, thus canola was more sensitive to soil acidity. Therefore, we recommend that liming should be undertaken to increase soil pH if it falls below these critical soil pH levels for wheat and canola production.

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Alleviating aluminum toxicity in an acid sulfate soil from Peninsular Malaysia by calcium silicate application

Cited by 36 publications

References 47 publications

Influences of calcium silicate on chemical forms and subcellular distribution of cadmium in Amaranthus hypochondriacus L.

Influences of calcium silicate on chemical forms and subcellular distribution of cadmium in Amaranthus hypochondriacus L.

Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops

Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops

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