Screening of Rice Cultivars Against the Emerging Disease Bacterial Panicle Blight under Odisha Condition

Author: Anita Priyadarsini, Gayatri Biswal, Mihira Kumar Mishra and Simanta Mohanty

Journal Name:

Download PDF

Abstract

A total of 25 popular rice genotypes were screened against bacterial panicle blight disease caused by Burkholderia glumae under artificial inoculation conditions. Among these twenty five genotypes only one genotype Hasanta was found to be moderately resistant against bacterial panicle blight and other were found to be susceptible, moderately susceptiple and highly susceptible. The highest disease index (84%) and disease severity (77.74) was recorded in the genotype Swarna

Keywords

Bacterial Panicle Blight, Burkholderia glumae, artificial inoculation, disease incidence, disease severity

Conclusion

Twenty five rice varieties were screened against Burkholderia glumae and classified into different groups i.e. resistant, moderately resistant, moderately susceptible, susceptible and highly susceptible. Out of twenty five rice varieties none of the variety was found to be resistant against Burkholderia glumae. Only Hasanta variety was found to have moderate resistance against Burkholderia glumae exhibiting disease incidence 24.3%. Among the highly susceptible varieties, Swarna variety exhibited highest disease incidence 84%. So it can be concluded that medium duration and long duration varieties exhibited the moderately susceptible to highly susceptible reaction against Burkholderia glumae as longer incubation period during the booting stage leading to panicle emergence during the heading stage. This suggests that the duration of maturity in paddy varieties influences the manifestation of panicle blight symptoms. However the genetic makeup of the variety is also contributing to this phenomenon as the long duration variety like Hasanta showed a moderate resistance to this bacterial panicle blight disease

References

-

How to cite this article

Anita Priyadarsini, Gayatri Biswal, Mihira Kumar Mishra and Simanta Mohanty (2023). Screening of Rice Cultivars Against the Emerging Disease Bacterial Panicle Blight under Odisha Condition. Biological Forum – An International Journal, 15(7): 436-439