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Acta Physiologiae Plantarum

, 42:24 | Cite as

Performance of low and high Fe accumulator wheat genotypes grown on soils with low or high available Fe and endophyte inoculation

  • Devendra Singh
  • Neelam Geat
  • Mahendra Vikram Singh Rajawat
  • Radha Prasanna
  • Anil Kumar SaxenaEmail author
Original Article
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Abstract

One of the important limiting factors to realising the benefits of modern high- yielding crop varieties is the availability of iron (Fe) in the soil, which often leads to Fe deficiency in food grains. The main objective of this study was to evaluate the role of two siderophore-producing endophytes (Arthrobacter sulfonivorans DS-68 and Enterococcus hirae DS-163) in the biofortification of grains with Fe and enhance yield in four genotypes of wheat (Triticum aestivum L.) in soils with low and high available Fe content. Endophyte inoculation increased the surface area, volume, length of roots and number of root tips by 78.27, 75, 71 and 44%, respectively, relative to the uninoculated control (recommended dose of fertilizers; RDF), across genotypes and soil types. In the low available-Fe soil, inoculation with endophytes increased grain yield twofold relative to the control (RDF), whereas in the high available-Fe soil, the increase was only 1.2-fold across genotypes. In general, endophyte inoculation caused an increase of 1.5-fold and 2.2-fold in iron concentration in grains over the RDF + FeSO4 treatment and uninoculated control (RDF), respectively, across all the genotypes and both soil types. Such siderophore-producing endophytes can be recommended as bioinoculants to mitigate iron deficiencies in the soil and enhance crop productivity.

Keywords

Endophyte Fe-biofortification Root morphology Siderophore Grain yield 

Notes

Acknowledgements

The authors thank ICAR-Indian Agricultural Research Institute and Indian Council of Agricultural Research (ICAR), New Delhi for the financial support through NASF project. The Division of Microbiology, ICAR-IARI, New Delhi is gratefully acknowledged for the facilities provided, during the present study.

Compliance with ethical standards

Conflict of interest

The authors declare no conflicts of interest.

Supplementary material

11738_2019_2997_MOESM1_ESM.doc (80 kb)
Supplementary file1 (DOC 82 kb)

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Copyright information

© Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2020

Authors and Affiliations

  • Devendra Singh
    • 1
  • Neelam Geat
    • 2
  • Mahendra Vikram Singh Rajawat
    • 3
  • Radha Prasanna
    • 4
  • Anil Kumar Saxena
    • 3
    Email author
  1. 1.Department of Microbiology, College of Basic Sciences & HumanitiesDr. Rajendra Prasad Central Agricultural UniversitySamastipurIndia
  2. 2.Agricultural Research Station, MandoreAgriculture UniversityJodhpurIndia
  3. 3.ICAR-National Bureau of Agriculturally Important MicroorganismsMau Nath BhanjanIndia
  4. 4.Division of MicrobiologyICAR-Indian Agricultural Research InstituteNew DelhiIndia

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