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Gold-nanoparticle induced enhancement in growth and seed yield of Brassica juncea

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Abstract

Experiments were carried out to determine the effect of Gold-nanoparticles on the growth profile and yield of Brassica juncea, under field conditions. Five different concentrations (0, 10, 25, 50 and 100 ppm) of Gold-nanoparticles were applied through foliar spray. Presence of Gold-nanoparticles in the leaf tissues was confirmed through atomic absorption spectroscopy. Various growth and yield related parameters, including plant height, stem diameter, number of branches, number of pods, seed yield etc. were positively affected by the nanoparticle treatment. Gold-nanoparticle treatment increased the number of leaves per plant; however the average leaf area was not affected. Optimal increase in seed yield was recorded at 10 ppm of Gold-nanoparticle treatment. Reducing as well as total sugar contents increased up to 25 ppm of Gold-nanoparticle treatment. Application of nanoparticles also improved the redox status of the treated plants. The results, for the first time, demonstrate successful use of Gold-nanoparticles in enhancing growth and yield of B. juncea, under actual field conditions and present a viable alternative to GM crops for ensuring food security.

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Abbreviations

AuNP:

Gold-nanoparticles

MDA:

Malondialdehyde

DAS:

Days after sowing

H2O2 :

Hydrogen peroxide

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Acknowledgments

The authors (Sandeep Arora and Priyadarshini Sharma) are thankful to the Nanoscience and Nanotechnology taskforce, Department of Biotechnology, Govt. of India, for financial support.

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Authors and Affiliations

  1. Department of Molecular Biology and Genetic Engineering, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India

    Sandeep Arora, Priyadarshini Sharma, Sumit Kumar & Rajeev Nayan

  2. Department of Chemistry, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India

    M. G. H. Zaidi

  3. Defense Institute of Advanced Technology, Pune, India

    P. K. Khanna

Authors
  1. Sandeep Arora
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  2. Priyadarshini Sharma
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  3. Sumit Kumar
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  4. Rajeev Nayan
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  5. P. K. Khanna
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  6. M. G. H. Zaidi
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Correspondence to Sandeep Arora.

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Arora, S., Sharma, P., Kumar, S. et al. Gold-nanoparticle induced enhancement in growth and seed yield of Brassica juncea . Plant Growth Regul 66, 303–310 (2012). https://doi.org/10.1007/s10725-011-9649-z

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  • DOI: https://doi.org/10.1007/s10725-011-9649-z

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