Archives of Agronomy and Soil Science
Current impact factor: 0.55
Impact Factor Rankings
|2016 Impact Factor ||Available summer 2017 |
|2014 / 2015 Impact Factor ||0.549 |
|5-year impact ||0.00 |
|Cited half-life ||4.60 |
|Immediacy index ||0.24 |
|Eigenfactor ||0.00 |
|Article influence ||0.00 |
|ISSN ||1476-3567 |
Taylor & Francis (Routledge)
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Publications in this journal
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ABSTRACT: In the present study attenuation of isoproturon (IPU) toxicity by salicylic acid (SA) was observed. Seven days old seedlings of pea (Pisum sativum L. cv. Azad P-1) were treated with 10 mM IPU. IPU influenced physiological and biochemical parameters. IPU significantly inhibited growth variables like shoot and root height, fresh and dry biomass of the pea. The contents of carotenoids, chlorophylls, protein, and activity of nitrate reductase were inhibited significantly. IPU enhanced the accumulation of H2O2, ion leakage and lipid peroxidation due to induction of oxidative stress in pea. The activities of antioxidant enzymes viz. superoxide dismutase, catalase and ascorbate peroxidase increased while the activities of guaiacol peroxidase decreased. However, exogenous SA regulated the toxic effects of IPU. The indices of oxidative stress appeared to be alleviated by SA. Pigment content and activities of enzymes increased approximately up to the level of control. IPU caused non-target phytotoxicity to Pisum sativum. The natural growth regulator/allelochemical has potential to overcome the adverse effects caused by IPU.
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ABSTRACT: In this work, we have compared the physiological responses of alfalfa plants inoculated with either Sinorhizobium meliloti strain S412 (Cu-tolerant) or S112 (Cu-sensitive) in the presence or absence of 0.5 mM of CuSO4. The addition of copper introduced a decrease of nodules number and their dry weight in both symbioses. The interaction established with the Cu-sensitive strain is more affected by copper than that with the tolerant one. In fact, plants inoculated with the sensitive strain revealed a decrease of shoot and roots dry weight larger than that found on plants inoculated with the tolerant strain. However, under copper supply, Medicago sativa with the Cu-tolerant strain did not show any significant changes in both shoot and root biomass production. Under copper excess, great levels of Cu were detected in different parts of the plant with the two symbioses and a great translocation of Cu to aerial parts was shown with the strain S412. Plants with S412 were able to accumulate large quantities of calcium (Ca) in their roots and nodules. While, Ca content decreased drastically in shoot at 0.5 mM of Cu treatment. Moreover, nodulation with S412 allowed plants to maintain high levels of magnesium (Mg) in all tissues and a high iron (Fe) levels in nodules. Results suggest that this symbiotic pair could be used in phytostabilisation of Cu-contaminated soils.
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