Comprehensive periodic evaluation of Oryza sativa germplasms for resistance against rice root-knot nematode, Meloidogyne graminicola


367 / 16

Authors

  • J Berliner ICAR-IARI, Regional Station, Wellington, The Nilgiris, Tamil Nadu, India
  • SS Pokhare ICAR-NRC on Pomegranate, Regional Station, Solapur, Maharastra, India
  • CD Mishra ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • SC Sahoo ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • S Munda ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • T Adak ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • LK Bose ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • BC Marandi ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • HN Subudhi ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • BC Patra ICAR-National Rice Research Institute, Cuttack, Odisha, India
  • B Manimaran ICAR-Indian Agricultural Research Institute, New Delhi, India

Keywords:

Germplasm evaluation, nematode screening, paddy, temperature, nematode prebreeding

Abstract

Rice root knot nematode, Meloidogyne graminicola is an important nematode pest with a devastating potential that causes serious damage to rice crop. There is an intensive search for eco-friendly, sustainable alternative to the existing nematode management practices. Host plant resistance offers propitious results in managing this minuscule crop enemy. Preliminary screening of 1731 Oryza sativa germplasms followed by periodic evaluation of nine resistant / tolerant germplasms shed new insights on nematode resistance. We observed seasonal inconsistency in the resistance in previously reported germplasms 'Ramakrishna', 'TKM6', 'Abhisek', 'Laxman sal', 'Ratna', and 'TKM1'. Hence, we strongly recommend repeated screening of identified resistant/tolerant rice germplasm lines against M. graminicola in both winter and summer season to confirm the consistency in resistance scale. Further investigation is needed to nullify other chance factors like nematode pathotypes.

Downloads

Submitted

2022-06-29

Published

2022-06-29

Issue

Vol. 59 No. 2 (2022): June-2022

Section

Articles

License

Copyright (c) 2022 Association of Rice Research Workers

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Berliner, J., Pokhare, S., Mishra, C., Sahoo, S., Munda, S., Adak, T., Bose, L., Marandi, B., Subudhi, H., Patra, B., & Manimaran, B. (2022). Comprehensive periodic evaluation of Oryza sativa germplasms for resistance against rice root-knot nematode, Meloidogyne graminicola. ORYZA-An International Journal of Rice, 59(2), 162-166. https://epubs.icar.org.in/index.php/OIJR/article/view/125279