BIOINFOLET - A Quarterly Journal of Life Sciences

Web of Science
  • Year: 2013
  • Volume: 10
  • Issue: 1a

Effect of provenance on occurrence of seed mycoflora in dry zones of Karnataka, India

  • Author:
  • P. J. Devaraju, K.S. Nagaraju, N. Shashidhara, K. P. R. Prasanna
  • Total Page Count: 10
  • DOI:
  • Page Number: 122 to 131

*Department of Seed Science and Technology, University of Agricultural Sciences, Bangalore-560 65, India

Department of Genetics and Plant Breeding, University of Agricultural Sciences, Bangalore-560 65, India

Online published on 28 February, 2013.

Abstract

Seeds were collected from various places of central, eastern and southern dry zones of Karnataka for germination studies by employing blotter paper method. In central dry zone, MTU 1001 recorded highest (99%) germination where as,Jyothi recorded highest (26.80g) test weight. Eight fungi were identified, out of which Drechslera oryzae recorded highest (5–9%) infection. In eastern dry zone, Marutheru recorded highest (99%) germination; whereas, IR -64 recorded highest (28.88g) test weight and 11 fungi were identified out of which Drechslera oryzae recorded highest (0–8%) infection; whereas, lowest was by Rhizopus sp. and Trichoconis padwickii among the 15 genotypes studied. In southern dry zone, IR-20, Rasi and BR 2655 recorded highest (99%) germination; whereas, Jaya recorded highest (28.92g) test weight and 11 fungi were recorded out of which, Drechslera oryzae recorded highest (0–9%) infection range. The occurrence of total number of fungi and per cent seed infection by individual fungi varied widely. Prevalence of total individual fungi varied from variety to variety and location to location indicating the effect of provenance.

Keywords

Rice, provenance, Seed mycoflora, storage fungi