Effects of lead on seedling growth of spesia populnea

Kabir, Muhammad; Iqbal, Muhammad; Shafiq, Muhammad; Farooqi, Zia-ur-Rehman

doi:10.17221/147/2009-pse

Cited by 35 publications

(29 citation statements)

References 24 publications

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“…Patra et al (2004) described that plant species/genotypes showed differences in tolerance to heavy metal depending on number of metacentric or diploid chromosomes and total length of diploid complement. The other reason can be differential physiological association of tolerance mechanism and growth of plants (Kabir et al, 2010). The Shaheen basmati showed better growth than KS-282 attributed to reduced Pb accumulation and possibly mobilization of the defense mechanisms including antioxidative enzymes such as superoxide dismutase, catalase, guaiacol peroxidase, ascorabte peroxidase and glutathione reductase (Pourrut et al, 2011), which might suppressed the Pb transport to further tissues (Sekara et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Iqbal¹,

Murtaza²,

Saqib³

et al. 2015

IJAB

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To cite this paper: Iqbal, M.M., G. Murtaza, Z.A. Saqib and R. Ahmad, 2015. Growth and physiological responses of two rice varieties to applied lead in saltaffected soils. AbstractIn arid and semi-arid regions of the world, soil salinity and heavy metal pollution occurring through various natural and anthropogenic means, is becoming major threat to safe crop production. The most feasible and effective approach is screening, breeding and cultivation of food crop varieties with low toxic metal accumulation. A pot study was conducted to investigate the growth and physiological responses of rice exposed to applied lead (Pb) in normal and salt-affected soils comprising four levels of Pb (0, 50, 100 and 150 mg kg -1 soil), two rice varieties (Shaheen basmati and KS-282) and two types of soil as normal and salt-affected soils. Increasing level of Pb decreased plant height, straw and paddy yields, photosynthetic and transpiration rates and stomatal conductance, more under salt-affected conditions. The cv. Shaheen basmati showed better response for growth, yield, physiological attributes and had lower Pb concentration in straw and paddy compared to cv. KS-282, at all levels of applied Pb in both normal and salt-affected soils. Thus, Shaheen basmati was found to be grown for Pb risk-free rice production and can be a good source for future rice breeding programs with the aim to produce low Pb accumulation and salt-tolerant rice varieties.

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Section: Discussionmentioning

confidence: 99%

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Iqbal¹,

Murtaza²,

Saqib³

et al. 2015

IJAB

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“…3). Other research reported that increasing Pb doses (0, 5, 10, 15, 20, 25 µm/M) caused a decrease of leaf number in Thespesia populnea L. (Kabir et al, 2010). It was reported that incremental concentrations of Cd after 0.1 µm/M caused a reduction of leaf number in tomato.…”

Section: Number Of Leaf Per Plant and Number Of Node Per Main Stemmentioning

confidence: 95%

Effect of Cadmium and Lead on Quantitative and Essential Oil Traits of Peppermint (Mentha piperita L.)

et al. 2012

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Cadmium (Cd) and lead (Pb) are particularly noteworthy metals that can pollute the air, soil and water contributing to serious environmental problems. Tests were done on concentrations of Pb and Cd; treatments tested in the experiment were as follows; Cd concentrations (10, 20, 40, 60, 80, 100 ppm) and concentrations of Pb (100, 300, 600, 900, 1200, 1500 ppm) and control. Tests were done on Mentha piperita L. in a greenhouse, arranged as a randomized complete block design with three replications. Rhizomes with uniform weight were planted in pots 30×50×35 cm. Plants were irrigated with Cd and Pb chloride after germination of all rhizomes. Results demonstrated that with increasing concentrations of Cd and Pb there was a decrease in fresh and dry weights, main stem height, leaf area per plant, leaf number, number of nodes per main stem and essential oil of peppermint compared to the control. Fresh weights were decreased at 100 ppm of Cd and 1500 ppm of Pb, 18.16% and 24.55%, respectively compared to the control at the first harvest. At the second harvest, these decreases were 15.24% and 32.72%, respectively. At the highest concentrations of Cd and Pb, dry weight of peppermint was dropped 22.92% and 39.01% at the first harvest. For the second harvest, decreased dry weights were 25.88% and 26.77% respectively. It seems that peppermint can tolerate waste water or soil polluted with medium range of Cd and Pb concentrations and the essential oil percentage was not affected by these concentrations.

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“…Heavy metals (HM) act as essential plant micronutrients however, excess amount of these contents become toxic pollutants [1]. Beyond threshold levels, heavy metals (HM) are transformed into contaminants.…”

Section: Introductionmentioning

confidence: 99%

“…It is commonly used in fertilizers, batteries, chemicals and ceramics, in different products like pottery, gasoline, lead glass, pesticides, paints, hair dyes, rubber toys and newsprint. Major lead content in the soil comes from weathering of geological rock formations, lead mine's discharge, automobile exhausts, industrial applications, smelting operations, fertilizer impurities, use of lead arsenate in metal plating and finishing operations, tetramethyl lead applications as anti knocking agent in petrol [9] and plants obtain lead from such agencies [1]. Increase in lead concentration in cultivated soils is detected in close proximity to industrial sites.…”

Section: Introductionmentioning

confidence: 99%

Effects of diverse doses of Lead (Pb) on different growth attributes of <i>Zea-Mays</i> L.

Hussain¹,

Abbas²,

Arshad³

et al. 2013

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The aim of the investigation was to determine the potential effect of lead on maize growth. Lead is considered as important potent environmental contaminant. Various ecological, environmental and evolutionary processes in the microsphere are disrupted because of lead toxicity to the microbial community. The effects of Lead Nitrate (Pb(No 3 ) 2 ) as heavy metal on germination, early growth seedling, root-shoot length, root-shoot fresh and dry weights, total protein content and the uptake of lead by roots and shoots of Zea-mays were investigated. All of the parameters were reduced by the increased lead concentrations. Such growth retardation was due to metals toxicity that resulted in damages to various physiological and biochemical processes.

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Effects of lead on seedling growth of spesia populnea

Cited by 35 publications

References 24 publications

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Effect of Cadmium and Lead on Quantitative and Essential Oil Traits of Peppermint (Mentha piperita L.)

Effects of diverse doses of Lead (Pb) on different growth attributes of <i>Zea-Mays</i> L.

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Effects of lead on seedling growth of spesia populnea

Cited by 35 publications

References 24 publications

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Growth and Physiological Responses of Two Rice Varieties to Applied Lead in Normal and Salt-Affected Soils

Effect of Cadmium and Lead on Quantitative and Essential Oil Traits of Peppermint (Mentha piperita L.)

Effects of diverse doses of Lead (Pb) on different growth attributes of &lt;i&gt;Zea-Mays&lt;/i&gt; L.

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Effects of diverse doses of Lead (Pb) on different growth attributes of <i>Zea-Mays</i> L.