Trends in Biosciences
  • Year: 2011
  • Volume: 4
  • Issue: 1

Screening of Rice Genotypes for Resistance against Sheath Rot of Rice (Sarocladium oryzae Sawada)

  • Author:
  • Narayana prasad1, G.B. Shivakumar2, P.S. Prasad2, G.K. Sudarshan2, Sundaresha3
  • Total Page Count: 2
  • Page Number: 114 to 115

1Department of Seed Technology, University of Agricultural Sciences, VC Farm, Mandya

2Department of Plant Pathology, University of Agricultural Sciences, Bangalore

3Department of Agricultural Biotechnology, University of Agricultural Sciences, Dharwad e-mail: prasadps_achar@rediffmail.com

Abstract

Out of 3000 entries tested during kharif, 2005 only seven showed resistance against sheath rot recording zero score. 158, 1544, 519, 337 and 435 entries showed severity rating of one, three, five, seven and nine respectively. During kharif, 2006 out of 2420 germplasm entries, 1547 entries recorded score rating of zero. During kharif 2004, 2005, 2006, rice genotypes comprising of 146, 228, 196 entries under National Screening Nursery I, were field evaluated for their resistance to sheath rot. During kharif, 2004, 2005, 2006 of 549, 556, 547 genotypes received under NSN-II, and were evaluated for resistance to sheath rot.

Keywords

Rice, sheath rot, genotypes, resistance