Phenotyping of improved rice lines and landraces for blast and sheath blight resistance
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Abstract
Globally, two major fungal diseases of rice, viz., blast caused by Magnaporthe oryzae and sheath blight incited by Rhizoctonia solani Kuhn. occur in all agro-ecosystems resulting in significant yield losses. In the present study, a set of 100 rice lines were evaluated for blast and sheath blight resistance. Twenty seven genotypes were identified to be resistant against M. oryzae isolate (Mo-ni-0066). However, evaluation of these genotypes with highly virulent M. oryzae Karnataka isolate (Mo-si-mnd) revealed that only two genotypes viz., Bhusan San and P1490-03 were resistant. Same set of genotypes were screened for sheath blight resistance. Four entries, viz., BPL7-12, BML27-1, BML 21-1 and Kajarahwa possess high degree of tolerance to sheath blight but none of the rice entries was completely resistant.
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How to Cite
Dubey, A. K., Pandian, R. T. P., Rajashekara, H., Singh, V. K., Kumar, G., Sharma, P., Kumar, A., Krishnan, S. G., Singh, A. K., Rathour, R., & Singh, U. D. (2014). Phenotyping of improved rice lines and landraces for blast and sheath blight resistance. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 74(04), 499–501. https://doi.org/10.5958/0975-6906.2014.00876.1
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Research Article
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