Plant Genetic Resources

Research Article

Sources of resistance to Fusarium wilt and root-knot nematode in indigenous chickpea germplasm

Mohar Singha1 c1, Z. Khana1, Krishna Kumara1, M. Duttaa1, Anju Pathaniaa2, O. P. Dahiyaa1 and J. Kumara3

a1 National Bureau of Plant Genetic Resources, Pusa, New Delhi 110 012, India

a2 CSK HPKV, Mountain Agriculture Research and Extension Centre, Sangla 172 461, India

a3 Pulse Research Laboratory, Division of Genetics, IARI, New Delhi 110 012, India

Abstract

Fusarium wilt caused by Fusarium oxysporum, Schlecht. emend. Snyd. & Hans. f. sp. ciceri is prevalent in most chickpea-growing countries and is a major devastating disease. Host plant resistance is the most practical method of disease management. Indigenous chickpea germplasm reveals a heterogeneous genetic make-up and the response of resistance to wilt is an unexplored potential source for disease resistance. There are 70 indigenous germplasm lines selected on the basis of their agronomic performance and diverse areas of collections in the country. Of these, four accessions had a highly resistant score of 1 and six had a score of 3 using a 1–9 rating scale, indicating their level of resistance to Fusarium wilt (race 4). Other germplasm accessions of chickpea were found to be moderately resistant to highly susceptible disease reaction. Likewise, the same set of germplasm was also screened for Meloidogyne incognita (race 1) using pot culture under controlled condition. Only one accession was found to be resistant to this pest. These resistant gene sources can be utilised effectively for race-specific chickpea wilt and root-knot resistance breeding programmes.

(Received April 30 2012)

(Accepted July 31 2012)

(Online publication September 24 2012)

Key Words:

  • Fusarium wilt;
  • M. incognita ;
  • chickpea;
  • resistance breeding

Correspondence:

c1 Corresponding author. E-mail: singhmohar_2003@yahoo.com; moharsingh@nbpgr.ernet.in

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