Rhizospheric biological weapons for growth enhancement and Meloidogyne incognita management in Withania somnifera cv. Poshita

Shilpi K. Saikia, Sudeep Tiwari, Rakesh Pandey

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Withania somnifera L. (Family Solanaceae) is an angiospermic medicinal herb, well recognized for the immense therapeutic potentials of its roots containing several withanolides. W. somnifera is also a susceptible host for southern root knot nematode, Meloidogyne incognita. The nematode infestation in roots causes serious crop losses in terms of yield and chemo-pharmaceutical quality of this medicinal herb. In the present study, influence of five rhizospheric microbes, namely Bacillus megaterium (ATCC No. 14581), Pseudomonas fluorescens (ATCC No. 13525), Trichoderma viride (MTCC No. 167), Paecilomyces lilacinus (PDBC PL55) and Glomus intraradices was studied for the management of M. incognita in W. somnifera cv. Poshita under greenhouse conditions. All rhizospheric microbes, except G. intraradices, displayed nematicidal potentials via ovicidal and larvicidal actions in vitro and, resulted in significant improvement in plant growth parameters. The rate of nematode damage to W. somnifera was directly proportional to M. incognita (number of J2) population.

Original languageEnglish
Pages (from-to)225-234
Number of pages10
JournalBiological Control
Volume65
Issue number2
DOIs
StatePublished - 1 May 2013
Externally publishedYes

Keywords

  • Larvicidal
  • Meloidogyne incognita
  • Ovicidal
  • Rhizospheric microbes
  • Root knot index

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Insect Science

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