Aluminium toxicity on cowpea genotypes and its effect on plant and soil characteristics

Kushwaha, Jitendra Kr; Pandey, Anil; Dubey, R. K.; Singh, Vikas; Mailappa, A.S.

doi:10.18805/lr.v0iof.9281

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Exchangeable aluminium concentration above 1c mol (+) kg -1 in soils are often toxic to plants (Ritchie, 1995). Deficiencies of phosphorus (P), calcium (Ca) and magnesium (Mg) coupled with the presence of phytotoxic substances are accountable for the fertility constraints of acid soils as provoked by industrial pollution and nitrification (Kushwaha et al,2016). Poor growth in acid soils could be related directly to Al saturation in soil (Akinrinde et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Screening of cowpea [Vigna unguiculata (L.) Walp.] for aluminium tolerance in relation to growth, yield and related traits

Dubey¹,

Kushwaha²,

Pandey³

et al. 2017

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Present study was carried out to screen the cowpea genotypes and to determine the effect of different level of aluminium on morpho-physiological, growth, yield and quality attributes. Twenty cowpea genotypes with four aluminium levels i.e. 0, 20, 40, 60 ppm in three replications was investigated in factorial complete randomized block design. Individual main effect and their interaction effects were studied for plant height at weekly interval, biomass, number of nodule per plant, root length, shoot length, dry matter of root, shoot, leaf, total dry matter, number of pod per plant, pod weight, yield and seed protein content. Cowpea genotypes exhibited significant differences for all 13 observed traits. Aluminium treatment expressed significant differences for all the attributes under study except biomass per plant. However, interaction effect was found to be significant for all studied characters except plant height at all stages. Among the aluminium treatments; observed traits were performing better at 20 ppm of Al, whereas, pod yield and protein content were best under the control.

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Section: Introductionmentioning

confidence: 99%

Screening of cowpea [Vigna unguiculata (L.) Walp.] for aluminium tolerance in relation to growth, yield and related traits

Dubey¹,

Kushwaha²,

Pandey³

et al. 2017

Self Cite

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show abstract

“…Likewise, the mobility of Al increases significantly and it competes very actively with other cations for exchange sites in soil with pH below 5.5. In acid soils, the mobile Al can be absorbed quickly by plants and result in restricted root growth, drought susceptibility and inefficient metabolism of soil nutrients (Kabata-Pendias, 2001, Imadi et al, 2015, Kushwaha et al, 2016.…”

Section: Phmentioning

confidence: 99%

An investigation into the use of Australian native plants and designer metal-binding particles for remediation of metal-contaminated landscapes

Correia¹,

Fatima²

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Contamination of soils with arsenic (As), lead (Pb), copper (Cu), manganese (Mn), zinc (Zn), cadmium (Cd) and aluminium (Al) as a result of mining and other industrial activities is a pervasive problem worldwide. High concentrations of these metal/loids and other contaminants in surface soil layers may prevent the growth of vegetation, leading to wind and water erosion of the soil and dispersion of the contaminants to adjacent areas. As a result, ecosystem and human health are put at risk via exposure through the food chain, drinking water and air. Phytoremediation uses metal-tolerant plants (i.e. metallophytes) to extract or stabilize metals in the soils of contaminated sites. Plant establishment for phytoremediation may be limited and delayed when soil contamination is severe. Reduction of contaminant concentrations in the surface soil is a common but not always effective means of enhancing plant establishment on polluted sites. The understanding of plant responses to various concentrations of metals in soils and their metal accumulation characteristics is crucial to selection of the metallophyte plants most appropriate for specific phytoremediation purposes. The design and use of micron-size hydrogel particles that have the capacity to bind toxic soluble metals and supply water offers an effective means to enhance plant establishment. A literature review identified new key parameters for the characterization of plant responses to metals in soil. Based on metal transporter kinetic parameters, a conceptual framework of plant metal uptake in relation to plant available metal concentration in soil was developed, and a new associated terminology for metallophytes is proposed, i.e. metal tolerators. The framework applies to all plant parts and plant available metal concentrations in soils, and was validated using independent datasets from field surveys of Queensland native plant species and the literature. This new framework may be a useful tool for selecting suitable metal tolerators for specific phytoremediation purposes, and may be also applied to non-metal elements or ions. The thesis also examined four Australian native plant species, Astrebla lappacea, Themeda australis, Austrostipa scabra and Acacia harpophylla for their tolerances to different concentrations of arsenic (As(V), 13.34-667.36 µM), copper (Cu 2+ , 0.5-200 µM), zinc (Zn 2+ , 9-500 µM), manganese (Mn 2+ , 8-10240 µM) and lead (Pb 2+ , 240-9600 µM) in single solutions during germination in controlled laboratory conditions. Metal/loid tolerance indicators used were maximum germination percentage (G max), mean germination time (MGT), radicle and shoot tolerance indexes (RTI & STI). Radicle tolerance index was the most sensitive indicator of metal I acknowledge that copyright of all material contained in my thesis resides with the copyright holder(s) of that material. Where appropriate I have obtained copyright permission from the copyright holder to reproduce material in this thesis and have sought permission from co-authors for any jointly authored ...

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Aluminium toxicity on cowpea genotypes and its effect on plant and soil characteristics

Cited by 2 publications

References 18 publications

Screening of cowpea [Vigna unguiculata (L.) Walp.] for aluminium tolerance in relation to growth, yield and related traits

Screening of cowpea [Vigna unguiculata (L.) Walp.] for aluminium tolerance in relation to growth, yield and related traits

An investigation into the use of Australian native plants and designer metal-binding particles for remediation of metal-contaminated landscapes

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