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Vegetos

Journal: Vegetos- An International Journal of Plant Research

Article DOI :
Year :2010, Volume : 23, Issue :1
First page : (137) Last page : (143)
Print ISSN : 0970-4078. Online ISSN : 2229-4473.


RESEARCH ARTICLE
A SOCIETY FOR PLANT RESEARCH PUBLICATION

Evaluation of Rice Genotypes for Resistance to Blast (Magnaporthe oryzae)

Kumar N1, Singh D1,*, Kumar A1, Kumar V1, Prasad L2, Malik Vikas1, Bhatnagar SK3

1College of Biotechnology, Molecular Biology Laboratory, Department of Genetics and Plant Breeding.
2Department of Plant Pathology, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut–250 110, UP, (India).
3Department of Cell Biology, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut–250 110, UP, (India).

*Corresponding author, E-mail: devisingh11@gmail.com.

Twenty two elite Indica rice genotypes were evaluated for resistance against blast disease under induced artificial epiphytotic conditions. Screening of rice genotypes for blast resistance was based on disease severity (%) and AUDPC parameters. The disease severity (%) and AUDPC was less than 46% and 1000, respectively in all the resistant genotypes, while it was more than 46% and higher than 1000 in the case of susceptible genotypes. Substantial variability was observed among rice genotypes for resistance to Magnaporthe oryzae. Thirteen rice genotypes expressed resistance against the blast disease and the rest nine rice genotypes were observed susceptible under artificial epiphytotic conditions.




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