Skip to main content

Nature of resistance in rice (Oryza sativa L) to the root-knot nematode (Meloidogyne graminicola Golden and birchheld). II. Mechanisms of resistance


The structural and chemical features of roots of 55 rice varieties were correlated with the degree of susceptibility to the root-knot nematode (Meloidogyne graminicola). Less roots, dense root hairs, highly sclerotised exodermis, narrow cortex and stele, few phloem points, low starch, protein and nitrogen, high lignification, high aspartic acid and alanine contents characterised roots of resistant rices.

This is a preview of subscription content, access via your institution.


  1. Balasubramanian M and Rangaswami G 1964,Indian Phytopath. 17 234–237

    Google Scholar 

  2. Crittenden H W 1954 Factors associated with root-knot nematode resistance in soybeans,Phytopathology 44 388 (abstr)

    Google Scholar 

  3. Ferver A F and Crittenden H W 1958 The Parasitic relationship of Avena sativa and root-knot nematodeMeloidogyne incognita v acrita., Phytopathology 48 802–803

    Google Scholar 

  4. Jena R N and Rao Y S 1971 Isolation of nematodes resistance rice varieties and studies on the mechanism of nematode resistance,Ann. Tech. Rept. CRRI Cuttack 155

  5. Jena R N and Rao Y S 1973 Root-knot nematode resistance in rice SABRAO II,Gen. Sci. Congr. Delhi 108–109.

  6. Jena R N and Rao Y S 1974 Root-knot nematode resistance in rice,Indian J. Genetics A34 443–449

    Google Scholar 

  7. Jena R N and Rao Y S 1975,Ann. Tech. Rept. CRRI Cuttack

  8. Jena R N and Rao Y S 1976 Nature of root-knot (Meloidogyne graminicola) resistance in rice (Oryaz sativa) I. Isolation of resistant varietiesB83 177–184

    Google Scholar 

  9. Jena R N and Rao Y S 1976Proc. Indian Acad. Sci. (In Press)

  10. Jena R N 1973Studies on nature of root-knot nematode resistance in rice, Ph. D. thesis OUAT Bhubaneswar

  11. Jenson W A 1962Botanical Histochemistry (London W H Freeman & Co.)

    Google Scholar 

  12. Krishna Prasad K S and Rao Y S 1976Proc. Indian Natl. Acad. Sci. (In Press)

  13. Overman A J and Woltz S S 1962Proc. Fla. Sta. Hort. Soc. 75 166–170

    Google Scholar 

  14. Roy A K 1975 Studies on resistance of rice to the attack ofMeloidogyne graminicola, Z. Pflaanzenkr und Pflanzenschutz 82 384–387

    Google Scholar 

  15. Siddiqui I A 1971 Histopathogenesis of galls induced byMeloidogyne nassi in oat roots,Nematologica 17 237–242

    Google Scholar 

Download references

Author information



Additional information

Adapted from the doctoral thesis submitted to the Orissa University of Agriculture and Technology, Bhubaneswar, by the senior author.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Jena, R.N., Seshagiri Rao, Y. Nature of resistance in rice (Oryza sativa L) to the root-knot nematode (Meloidogyne graminicola Golden and birchheld). II. Mechanisms of resistance. Proceedings of the Indian Academy of Sciences - Section B 86, 33–38 (1977).

Download citation


  • Meloidogyne graminicola
  • resistance in rice
  • root-knot nematode