Evaluation of Rice Lines for Resistance to Blast in Seedbed

Authors

  • B. Chaudhary
  • S.M. Shrestha
  • R.C. Sharma
  • R.R. Pokharel

Keywords:

Pyricularia grisea, Oryza sativa, genotypes

Abstract

Identification of blast resistance sources in rice and their proper deployment are necessary for blast management. In this study, 240 rice-breeding lines were evaluated for blast resistance under natural field conditions at Rampur, Chitwan during rainy season of 2000. The experiment comprised of lines from different yield trials (subtropical, warm temperate and temperate trial sets) with different genetic backgrounds. Of the 240 rice lines, 131 were resistant, 54 moderately resistant, 12 moderately susceptible and 17 susceptible. The frequency of resistant lines increased with the advancement of lines from initial evaluation trials to farmer's field trials. This indicates that blast resistant is one of the criterion for promoting rice lines.

J. Inst. Agric. Anim. Sci. 25:65-70 2004

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Abstract
595

Published

2004-03-01

How to Cite

Chaudhary, B., Shrestha, S., Sharma, R., & Pokharel, R. (2004). Evaluation of Rice Lines for Resistance to Blast in Seedbed. Journal of the Institute of Agriculture and Animal Science, 25, 65–70. Retrieved from https://nepjol.info./index.php/JIAAS/article/view/389

Issue

Vol. 25 (2004)

Section

Research Notes